Document analysis and recognition
Patents
Method and system for enhancing binary document image quality for improving readability and OCR performance
Indian Patent Office Reference. No: TEMP/E-1/33470/2018-CHE, 2018
Ram Krishna Pandey and A. G. Ramakrishnan
A method to extract and align text of an image captured and a system thereof
Indian Patent Office Reference. No: 109/CHE/2011, 2011
T. Kasar and A. G. Ramakrishnan
Attention feedback based robust segmentation of online handwritten words
Indian Patent Office Reference. No: 03974/CHE/2010
Suresh Sundaram and A. G. Ramakrishnan
Journals Publication
Lipi Gnani - A Versatile OCR for Documents in any Language Printed in Kannada Script
ACM Transactions on Asian and Low-Resource Language Information Processing, vol. 19, issue 4, Pp DOI: 10.1145/3387632
HR Shiva Kumar, AG Ramakrishnan
Efficient Document-Image Super-Resolution Using Convolutional Neural Network
Sadhana Journal, March 2018
Ram Krishna Pandey and A. G. Ramakrishnan
Bigram language models and reevaluation strategy for improved recognition of online handwritten Tamil words (PDF)
ACM Transactions on Asian and Low-Resource Language Information Processing (TALLIP), Vol. 14 (2), June 2015
Suresh Sundaram and A. G. Ramakrishnan
Development of OHWR System for Kannada (PDF)
VishwaBharat@tdil, ISSN No. 0972-6454, July 2012 - June 2013, Issues 39 and 40, pp. 67 - 95
A G Ramakrishnan and J Shashidhar
Development of OHWR System for Tamil (PDF)
VishwaBharat@tdil, ISSN No. 0972-6454, July 2012 - June 2013, Issues 39 and 40, pp. 211 - 22
A. G. Ramakrishnan, Bhargava Urala K, Suresh Sundaram, Harshitha PV
Performance enhancement of online handwritten Tamil symbol recognition with reevaluation techniques (PDF)
Pattern Analysis and Application, DOI - 10.1007/s10044-013-0353-7, (Accepted Nov 2013)
Suresh Sundaram and A. G. Ramakrishnan
Alignment of Curved Text Strings for Enhanced OCR Readability (PDF)
nternational Journal of Computer Vision and Signal Processing, Vol. 3(1), pp. 2013
T Kasar and AG Ramakrishnan
Attention-feedback based robust segmentation of online handwritten isolated Tamil words (PDF)
ACM Transactions on Asian Language Information Processing (TALIP), Vol. 12 (1), March 2013, Article No.
Suresh Sundaram and A. G. Ramakrishnan
Fusion of Complementary Online and Offline Strategies for Recognition of Handwritten Kannada Characters (PDF)
Journal of Universal Computer Science, Vol. 17, pp. 81-93, 2011
Rakesh Rampalli and A. G. Ramakrishnan
Choice of Classifiers in Hierarchical Recognition of Online Handwritten Kannada and Tamil Aksharas (PDF)
Journal of Universal Computer Science, Vol. 17, pp. 94-106, 2011
Venkatesh Narasimha Murthy and A. G. Ramakrishnan
Dynamic Space Warping of Strokes for Recognition of Online Handwritten Characters (PDF)
IJPRAI 23(5): 925-943, 2009
Amrik Sen, G. Ananthakrishnan, Suresh Sundaram, A. G. Ramakrishnan
Word Level Multi-script Identification (PDF)
Pattern Recognition Letters, 2008, Vol. 29, pp. 1218-1229
Peeta Basa Pati and A. G. Ramakrishnan
Script Identification in printed bilingual documents (PDF)
Sadhana, Feb 2002, Vol. 27, part-1, pp.73-82
D. Dhanya, A. G. Ramakrishnan, P. B. Pati
OCR in Indian Scripts: A Survey (PDF)
IETE Technical Review, May-Jun 2005, 22(3):217-227
Peeta Basa Pati and A G Ramakrishnan
Technical Reports
Language Independent Single Document Image Super-Resolution using CNN for improved recognition (PDF)
arXiv preprint arXiv:1701.08835, Jan 2017
Ram Krishna Pandey and A G Ramakrishnan
Conference Publication
Analysis of the key components of segmentation-free bilingual OCR for mobile phones(PDF)
Proc. 19th IEEE India Council International Conference (INDICON 2022), Kochi, Kerala, Nov. 24-26, 2022
Deepak Kumar, A G Ramakrishnan
KannadaPado: Mobile-based recognition and cross-lingual transcription of camera captured text in Kannada(PDF)
Proc. International Conference on Electronics, Computing and Communication Technologies, IEEE CONECCT 2021, July 9-11, 2021
A G Ramakrishnan, Deepak Kumar, Maithri G S, Sasidharan Ayyavu, Gangotri Nadiger
Improving the Perceptual Quality of Document Images Using Deep Neural Network(PDF)
Proc. 16th International Symposium on Neural Networks (ISNN 2019), Moscow, Russia, July 10-12, 2019.
Ram Krishna Pandey, A G Ramakrishnan
Gamma Enhanced Binarization - An Adaptive Nonlinear Enhancement of Degraded Word Images for Improved Recognition of Split Characters(PDF)
In Proc. 25th National Conf. on Communication (NCC 2019), IEEE.
H. R. Shiva Kumar and A. G. Ramakrishnan
Splitting Merged Characters of Kannada Benchmark Dataset using Simplified Paired-Valleys and L-Cut.(PDF)
In Proc. 25th National Conf. on Communication (NCC 2019), IEEE.
H. R. Shiva Kumar, A. Madhavaraj, and A. G. Ramakrishnan
A new approach for upscaling document images for improving their quality (PDF)
Proc. 14th IEEE India Council International Conference (INDICON 2017), IIT Roorkee, Dec. 15-17, 2017
Ram Krishna Pandey, Shishira R Maiya, A G Ramakrishnan
Recognition of online captured, handwritten Tamil words on Android (PDF)
Proc. 13-th Tamil Internet Conference, Pondicherry, Sept. 19-21, 2014
A G Ramakrishnan and Bhargava Urala K
Improved recognition of aged Kannada documents by effective segmentation of merged characters (PDF)
Proc. Tenth International Conference on Signal Processing and Communications (SPCOM 2014), Bangalore, July 22-24, 2014
A Madhavaraj, A G Ramakrishnan, H R Shiva Kumar, Nagaraj Bhat
Recognition of open vocabulary, online handwritten pages in Tamil script (PDF)
Proc. Tenth International Conference on Signal Processing and Communications (SPCOM 2014), Bangalore, July 22-24, 2014
Bhargava Urala K, A G Ramakrishnan, Sahil Mohamed
Script Independent Detection of Bold Words in Multi Font-size Documents (PDF)
roc. National Conference on Computer Vision, Pattern Recognition, Image Processing and Graphics (NCVPRIPG-2013), IIT Jodhpur, Dec. 18-21, 201
Pedamalli Saikrishna, Ramakrishnan AG
Global and local features for recognition of online handwritten numerals and Tamil characters (PDF)
ACM - Proc. International Workshop on Multilingual OCR, (MOCR 2013), 24 Aug. 2013, Washington DC, US
A. G. Ramakrishnan and Bhargava Urala
Multi-script robust reading competition in ICDAR 2013 (PDF)
ACM - Proc. International Workshop on Multilingual OCR, (MOCR 2013), 24 Aug. 2013, Washington DC, US
Deepak Kumar, M. N. Anil Prasad and A. G. Ramakrishnan
A tool that converted 200 Tamil books for use by blind students (PDF)
Proc. 12-th International Tamil Internet Conf., Kuala Lumpur, Malaysia, Aug. 15-18, 2013
Shiva Kumar H R and A G Ramakrishnan
Identification of Tamizh script on Tablet PC (PDF)
Proc. 12-th International Tamil Internet Conf., Kuala Lumpur, Malaysia, Aug. 15-18, 2013
Bhargava Urala and A G Ramakrishnan
Standardize fonts to catapult Tamil to the digital forefront (PDF)
Proc. 12-th International Tamil Internet Conf., Kuala Lumpur, Malaysia, Aug. 15-18, 2013
A G Ramakrishnan
NESP: Nonlinear enhancement and selection of plane for optimal segmentation and recognition of scene word images (PDF)
Proc. International Conference on Document Recognition and Retrieval(DRR) XX, 5-7 February 2013, San Francisco, CA USA
Deepak Kumar, M. N. Anil Prasad and A. G. Ramakrishnan
Evaluation of document binarization using eigen value decomposition (PDF)
Proc. International Conference on Document Recognition and Retrieval(DRR) XX, 5-7 February 2013, San Francisco, CA USA
Deepak Kumar, M. N. Anil Prasad and A. G. Ramakrishnan
Online handwritten Tamil word recognition using segmentation, bigram models and verification (PDF)
Proc. 11th International Tamil Internet Conference, Chidambaram, Dec. 28-30, 2012, pp. 70 - 73
A G Ramakrishnan and Bhargava Urala
Language Models for Online Handwritten Tamil Word Recognition (PDF)
Proc. Workshop on Document Analysis and Recognition (DAR 2012), 16 December 2012, IIT Bombay, Mumbai, India
Suresh Sundaram, Bhargava Urala K and A. G. Ramakrishnan
Benchmarking recognition results on camera captured word image datasets (PDF)
Proc. Workshop on Document Analysis and Recognition (DAR 2012), 16 December 2012, IIT Bombay, Mumbai, India
Deepak Kumar, M. N. Anil Prasad and A. G. Ramakrishnan
Recognition of Kannada characters extracted from scene images (PDF)
Proc. Workshop on Document Analysis and Recognition (DAR 2012), 16 December 2012, IIT Bombay, Mumbai, India
Deepak Kumar and A. G. Ramakrishnan
MAPS: Midline analysis and propagation of segmentation (PDF)
Proc. 8th Indian Conference on Vision, Graphics and Image Processing (ICVGIP 2012), 16-19 December 2012, Mumbai, India
Deepak Kumar, M. N. Anil Prasad and A. G. Ramakrishnan
Power-law transformation for enhanced recognition of born-digital word images (PDF)
Proc. 9th International Conference on Signal Processing and Communications (SPCOM 2012), 22-25 July 2012, Bangalore, India
Deepak Kumar and A. G. Ramakrishnan
OTCYMIST: Otsu-Canny minimal spanning tree for born-digital images (PDF)
Proc. 10th International Workshop on Document Analysis Systems (DAS 2012), 2012, Gold Coast, Queensland, Australia
Deepak Kumar and A. G. Ramakrishnan
Tamil Online handwriting recognition using fractal features (PDF)
Proc. Tamil Internet, Univ. of Pennsylvania, June 17-19, 2011
Rituraj Kunwar and A G Ramakrishnan
Experiences of integration and performance testing of multilingual OCR for printed Indian scripts (PDF)
Proc. Joint Workshop on Multilingual OCR and Analytics for Noisy Unstructured Text Data (MOCR AND '11). Sept. 17, 2011, Beijing, China. Article 9
Deepak Arya, C V Jawahar, C Bhagvati, T Patnaik, B B Chaudhuri, G S Lehal, S Chaudhury, A. G. Ramakrishnan
TexTraCC: Text extraction using color-based connect component labeling (PDF)
Proc. Centenary Conference of Electrical Engineering, IISc, 2011, Bangalore, India
T. Kasar, A. G. Ramakrishnan, Amey Dharwadkery and Abhishek Sharma
Multi-script and multi-oriented text localization from scene images (PDF)
Camera-based Document Analysis and Recognition, LNCS 7139, pp. 1-14, 2012
Thotreingam Kasar and A G Ramakrishnan
QUAD: Quality assessment of documents (PDF)
Proc. 4th International Workshop on Camera-based Document Analysis and Recognition (CBDAR 2011), pp. 79-84, 2011, Beijing, Chin
Deepak Kumar and A. G. Ramakrishnan
MAST: Multi-script annotation toolkit for scenic text (PDF)
Proc. Joint Workshop on Multilingual OCR and Analytics for Noisy and Unstructured Text Data (J-MOCR-AND 2011), pp. 1-8, 2011, Beijing, China
T. Kasar, D. Kumar, M. N. Anil Prasad, D. Girish, A. G. Ramakrishnan
Lexicon-free novel segmentation of online handwritten indic words (PDF)
Proc. 11th International Conference on Document Analysis and Recognition (ICDAR 2011), pp. 1175-1179, 2011, Beijing, Chin
Suresh Sundaram and A. G. Ramakrishnan
Online handwriting recognition of tamil script using fractal geometry (PDF)
Proc. 11th International Conference on Document Analysis and Recognition (ICDAR 2011), pp. 1389-1393, 2011, Beijing, China
Rituraj Kunwar and A. G. Ramakrishnan
Neuroscience inspired segmentation of handwritten words (PDF)
10th Tamil Internet Conference, pp 148-153, 201
A. G. Ramakrishnan and Suresh Sundaram
A Free Tamil Keyboard Interface for Business and Personal Use (PDF)
Proc. Tamil Internet 2010, Coimbatore, June 23-26, 2010, pp. 634- 640
Abhinava Shivakumar, Akshay Rao, Arun S, A G Ramakrishnan
Automated Processing of Census Forms in Tamil (PDF)
Proc. Tamil Internet 2010, Coimbatore, June 23-26, 2010, pp. 288- 294
Shashi Kiran, Rituraj, Suresh Sundaram, Swapnil Belhe, A G Ramakrishnan
Design and Evaluation of Omnifont Tamil OCR (PDF)
Proc. Tamil Internet 2010, Coimbatore, June 23-26, 2010, pp. 519 - 522
Tushar Patnaik, Shalu Gupta, C V Jawahar, Santanu Choudhury, A G Ramakrishnan
Creation of annotated Tamil handwritten word corpus for OHR (PDF)
Tamil Internet 2010, Coimbatore, June 23-26, 2010, pp. 502 - 50
B Nethravathi, C P Archana, K Shashikiran, A G Ramakrishnan
Creation of a huge annotated database for Tamil and Kannada OHR (PDF)
Proc. Intern. Conf. Frontiers in Handwriting Recognition (ICFHR), 2010, pp. 415-42
B Nethravathi, CP Archana, K Shashikiran, AG Ramakrishnan, V Kumar
Online handwritten kannada word recognizer with unrestricted vocabulary (PDF)
Proc. 12th International Conference on Frontiers in Handwriting Recognition (ICFHR 2010), Nov 2010
Rituraj Kunwar, Shashi Kiran, A. G. Ramakrishnan
Orthogonal LDA in PCA Transformed Subspace (PDF)
Proc. 12th International Conference on Frontiers in Handwriting Recognition (ICFHR 2010), Nov 201
M. Mahadeva Prasad, M. Sukumar, A. G. Ramakrishnan
Comparison of HMM and SDTW for Tamil handwritten character recognition (PDF)
IEEE International Conference On Signal Processing and Communications (SPCOM 2010), 201
K Shashikiran, Kolli Sai Prasad, Rituraj Kunwar, A. G. Ramakrishnan
Unrestricted Kannada Online Handwritten Akshara Recognition using SDTW (PDF)
IEEE International Conference On Signal Processing and Communications (SPCOM 2010), 201
Rituraj Kunwar, Mohan P., Shashi Kiran, A. G. Ramakrishnan
An efficient document image reconstruction and binarization method using compressed sensing (PDF)
Proc. IADIS International Conference on Computer Graphics, Visualization, Computer Vision and Image Processing (CGVCVIP 2009), 2009, pp. 287-291. Algarve, Portugal
J.V.Satyanarayana and A.G.Ramakrishnan
XML standard for Indic online handwritten database (PDF)
ACM - Proceedings of the International Workshop on Multilingual OCR, 2009
Swapnil Belhe, Srinivasa Chakravarthy, A. G. Ramakrishnan
Divide and conquer technique in online handwritten Kannada character recognition (PDF)
ACM - Proceedings of the International Workshop on Multilingual OCR, 2009
M. Mahadeva Prasad, M. Sukumar, A. G. Ramakrishnan
A HMM Based Online Tamil Word Recognizer (PDF)
Proc. Tamil Internet Conference (TIC 2009), University of Koeln, Germany, 2009, pp. 165-168
Rituraj Kunwar, Shashi Kiran, Suresh Sundaram, A G Ramakrishnan
Resolving Ambiguities in Confused Online Tamil Characters with Post Processing Algorithms (PDF)
PReMI 2009: 406-41
Suresh Sundaram and Angarai Ganesan Ramakrishnan
COCOCLUST: Contour-based Color Clustering for Robust Text Segmentation and Binarization (PDF)
Proc. 3rd workshop on Camera-based Document Analysis and Recognition, pp. 11-17, 2009, Spain
T. Kasar and A. G. Ramakrishnan
An Improved Online Tamil Character Recognition Engine using Post-Processing Methods (PDF)
Proc. 10th International Conference on Document Analysis and Recognition, pp 1216-1220, 2009, Spain
Suresh Sundaram and A.G.Ramakrishnan
CCD: Connected Component Descriptor for Robust Mosaicing of Camera-Captured Document Images (PDF)
Proc. VIII IAPR International Workshop on Document Analysis Systems (DAS-2008), Nara, Japan, pp. 480-486, 2008
T.Kasar and A.G.Ramakrishnan
Two Dimensional Principal Component Analysis for Online Tamil Character Recognition (PDF)
Proc. XI Int. Conf Frontiers in Handwriting Recognition (ICFHR 2008), pp.88-94, 2008, Montreal, Canad
Suresh Sundaram and A.G.Ramakrishnan
Online character recognition using regression techniques (PDF)
Proc. IEEE Workshop on applications of computer vision (WACV 2008), Jan 7-9, 2008, pp. 1-
Nirup Reddy, Kandan.R, Shashikiran.K, Suresh.S and A.G.Ramakrishnan
Specialized Text Binarization Technique for Camera-Based Document Images (PDF)
Proc. Workshop in Image and Signal Processing (WISP-2007), IIT Guwahati, Dec 28-29 2007, pp. 28-31
T.Kasar, J.Kumar and A.G.Ramakrishnan
Localization of handwritten text in documents using moment invariants and Delaunay triangulation (PDF)
Proc. International Conf Computational Intelligence and Multimedia Applications (ICCIMA 2007), Dec 2007, pp. 408-414
Kandan Ramakrishnan, Arvind.K.R and A.G.Ramakrishnan
Line removal and restoration of handwritten strokes (PDF)
Proc. International Conf Computational Intelligence and Multimedia Applications (ICCIMA 2007), Dec 2007, pp. 208-214
Arvind.K.R, Jayant Kumar and A.G.Ramakrishnan
Entropy based skew correction of document images (PDF)
Proc. PReMI 2007, Kolkata, Dec 18-22, 2007, pp. 495-502
K.R.Arvind, Jayant Kumar and A.G.Ramakrishnan
A Robust Two Level Classification Algorithm for Text Localization in Document (PDF)
3rd international conference on Advances in visual computing (ICSV'07), Lake Tahoe, Nevada, USA, Nov. 26-28, 2007, Vol. 2, pp. 96-105
R Kandan, Nirup Kumar Reddy, KR Arvind, AG Ramakrishnan
Block-Based Feature Detection and Matching for Mosaicing of Camera-Captured Document Images (PDF)
Proc. IEEE TENCON 2007, Taipei, Taiwan, Oct 30\96Nov 2, 2007, pp. 1-4
Thotreingam Kasar and A.G.Ramakrishnan
Edge-based Connected Component Approach for Skew Correction of Complex Document Images (PDF)
Proc. IEEE TENCON 2007, Taiwan, Oct 30\96Nov 2, 2007, pp. 5-8
Jayant Kumar, Thotreingam Kasar and A.G.Ramakrishnan
A Blind Indic Script Recognizer for Multi-script Documents (PDF)
Proc. IX ICDAR, Brazil, Sept. 23-26, 2007, Vol. 2, pp. 1248-1252
Peeta Basa Pati and A.G.Ramakrishnan
A novel hierarchical classification scheme for online Tamil character recognition (PDF)
Proc. IX ICDAR, Brazil, Sept. 23-26, 2007, Vol. 2, pp. 1218-122
Suresh Sundaram and A.G.Ramakrishnan
Font and Background Color Independent Text Binarization (PDF)
Proc. II International Workshop on Camera-Based Document Analysis and Recognition (CBDAR 2007), Curitiba, Brazil, September 22, 2007, pp. 3-9
T. Kasar, J. Kumar and A.G.Ramakrishnan
Automatic Seal Information Reader (PDF)
Proc. Intern. Conf. Comput. Theory Applns. (ICCTA-2007), Kolkata, Mar. 5-7, pp. 502-505
F.Nourbakhsh, P.B.Pati and A.G.Ramakrishnan
Document Page Layout Analysis using Harris\96corner Points (PDF)
Proc. IV Intl. Conf. on Intelligent Sensing and Info. Proc., (ICISIP 2006), Dec 15-18, 2006, pp. 149-152
Farshad Nourbakhsh, P.B.Pati and A.G.Ramakrishnan
Binarization and Localization of Text Images captured on a mobile phone camera (PDF)
Proc. IV Intl. Conf. on Intelligent Sensing and Info. Proc., (ICISIP 2006), Dec 15-18, 2006, pp. 224-229
Bhavna.A, P.B.Pati and A.G.Ramakrishnan
Automatic Text Block Separation in document images (PDF)
Proc. IV Intl. Conf. on Intelligent Sensing and Info. Proc., (ICISIP 2006), Dec 15-18, 2006, pp. 53-58
Arvind.K.R, P.B.Pati, and A.G.Ramakrishnan
Text Localization and Extraction from Complex Gray Images (PDF)
Proc. Indian Conf. Vision, Graphics Image Processing, ICVGIP 2006, Dec. 13-16, 2006, pp. 776-785
Farshad Nourbakhsh, P.B.Pati and A.G.Ramakrishnan
Horizontal Projection Profiles for extraction of Text Paragraphs from Document Images (PDF)
Proc. Intl. Conf. on Signal and Image Processing, 2006, Hubli, Dec. 7-9, 2006, pp. 577-5
Arvind.K.R, P.B.Pati and A.G.Ramakrishnan
Inversion Detection in Text Document Images (PDF)
Proc. 2006 Joint Conf. on Info. Sciences, JCIS 2006, Taiwan, Oct 8-11, 2006
Hamid Pilevar and A.G.Ramakrishnan
HVS inspired System for Script Identification in Indian Multi-script Documents (PDF)
Proc. VII IAPR Workshop on Document Analysis Systems (DAS 2006), 13-15 Feb 2006, New Zealand, LNCS-3872, Springer Verlag, 2006, pp. 380-389
Peeta Basa Pati and A.G. Ramakrishnan
Text Localization and Extraction from Complex Color Images (PDF)
Proc. First International Conference on Advances in Visual Computing (ISVC05), Nevada, USA, LNCS 3804, Springer Verlag, Dec. 5-7, 2005, pp. 486-49
S Sabari Raju, P B Pati and A G Ramakrishnan
Prototype Learning Methods for Online Handwriting Recognition (PDF)
ICDAR 2005, Seoul, Korea, Aug. 29-Sept 1, 2005, Vol 1, pp. 287-291
Raghavendra.B.S, Narayanan.C.K, Sita.G, Ramakrishnan.A.G and Sriganesh.M
Machine recognition of online handwritten Devanagari characters (PDF)
Proc. International Conference on Document Analysis and Recognition (ICDAR 2005), Seoul, Korea, Aug. 29-Sept 1, 2005, pp. 1156-1160
Niranjan Joshi, G.Sita, A.G.Ramakrishnan, Deepu.V and Sriganesh Madhvanath
A novel GMM based approach for prototype selection (PDF)
Proc. National Conf. Sig. Proc. Commn. Control (SPCCN01-2005), July 1-3, 2005, Pune, pp. 69-73
G.Ananthakrishnan, T.Kasar and A.G.Ramakrishnan
Tamil handwriting recognition using subspace and DTW based classifiers (PDF)
Proc. 11th International Conference on Neural Information Processing (ICONIP 2004), Calcutta, Nov 22-25, 2004, pp. 806-813
Niranjan Joshi, G. Sita, A. G. Ramakrishnan and Sriganesh Madhvanath
Comparison of elastic matching algorithms for online Tamil handwritten character recognition (PDF)
Proc. IWFHR-9, Tokyo, Japan, Oct. 26-29, 2004, pp. 444-449
Niranjan Joshi, G.Sita, A.G.Ramakrishnan and S.Madhvanath
Principal Component Analysis for Online Handwritten Character Recognition (PDF)
Proc. 17th Intern. Conf. Pattern Recognition (ICPR 2004), 23-26 Aug. 2004, Vol 2, pp. 327-330
Deepu V., Sriganesh Madhvanath and Ramakrishnan A. G.
Radial basis function and subspace approach for printed Kannada text recognition (PDF)
Proc. IEEE ICASSP-04, May 17-21, 2004, Vol 5, pp. 321-324
Vijay Kumar.B and A.G.Ramakrishnan
Gabor Filter Based Block Energy Analysis for Text extraction from Digital Document Images (PDF)
Proc. First International Workshop on Document Image Analysis for Libraries (DIAL-04), Palo Alto, USA, Jan. 2004, pp. 233-243
S Sabari Raju, Peeta Basa Pati and A G Ramakrishnan
Gabor filters for document analysis in Indian Bilingual Documents (PDF)
Proc I IEEE Intl Conf Intelligent Sensing Info Proc (ICISIP 2004), Jan 4-7, 2004, Chennai, pp. 123-126
P.B.Pati, S.S.Raju, N.K.Pati and A.G.Ramakrishnan
Parallel Processing in OCR - A Multithreaded approach (PDF)
Proc. Tamil Internet 2002, San Francisco, CA, USA, pp. 107-110
G. L. Jayavardhana Rama, A. G. Ramakrishnan and Devaraj Gupta
Bilingual (Tamil-Roman) Text Recognition on Windows (PDF)
Proc. Tamil Internet 2002, San Francisco, CA, USA, pp. 102-106
Aparna K.G, Dhanya D and A. G. Ramakrishnan
Machine Recognition of Printed Kannada Text (PDF)
Proc. Fifth IAPR Workshop on Document Analysis Systems (DAS-02), August 19-21, 2002, Springer Verlag, Berlin. pp. 37-48
B. Vijay Kumar and A.G. Ramakrishnan
A complete Tamil Optical Character Recognition System (PDF)
Proc. Fifth IAPR Workshop on Document Analysis Systems DAS-02, Princeton, NJ, August 19-21, 2002, pp. 53-5
K.G.Aparna and A.G.Ramakrishnan
Script Identification in Printed Bilingual Documents (PDF)
Proc. Fifth IAPR Workshop on Document Analysis Systems DAS-02, Princeton, NJ, August 19-21, 2002, pp. 13-2
D.Dhanya and A.G.Ramakrishnan
Optimal feature extraction for bilingual OCR (PDF)
Proc. Fifth IAPR Workshop on Document Analysis Systems (DAS-02), Princeton, NJ, August 19-21, 2002, pp.25-36
D Dhanya and A G Ramakrishnan
Simultaneous Recognition of Tamil and Roman Scripts (PDF)
Proc. Tamil Internet 2001, Kuala Lumpur, August 26-28, 2001, pp. 64-68
D.Dhanya and A.G.Ramakrishnan
Tamil Gnani - an OCR on Windows (PDF)
Proc. Tamil Internet 2001, Kuala Lumpur, August 26-28, 2001, pp. 60-63
Aparna.K.G and A.G.Ramakrishnan
Machine Recognition of Printed Oriya Characters (PDF)
Proc. III Intern. Conf. on Information Technology ICIT 2000, Bhubaneshwar, Dec. 21-23, 2000, pp. 227-232
Peeta Basa Pati and A.G.Ramakrishnan
A Novel Scheme for Image Rotation for Document Processing (PDF)
Proc. IEEE Intern. Conf. on Image Processing 2000, Vancouver, BC, Canada, Sept 10-13, 2000, Vol. 2, pp. 594-596
Kaushik Mahata and A.G.Ramakrishnan
Precision Skew Detection through Principal Axis (PDF)
Proc. Intern. Conf. on Multimedia Processing and Systems, Chennai, Aug. 13-15, 2000, pp. 186-188
Kaushik Mahata and A.G.Ramakrishnan
A Complete OCR for Printed Tamil Text (PDF)
Proc. Tamil Internet 2000, Singapore, July 22-24, 2000, pp. 165-170
A.G.Ramakrishnan and Kaushik Mahata
Speech Processing
Journals Publication
Meta-learning for Indian languages: Performance analysis and improvements with linguistic similarity measures(PDF)
IEEE Access, 2023
Anoop C. S. and Ramakrishnan, A. G.
Suitability of syllable-based modeling units for end-to-end speech recognition in Sanskrit and other Indian languages(PDF)
Expert Systems With Applications, 2023
Anoop C. S. and Ramakrishnan, A. G.
Recognition of Alzheimer's Dementia from the Transcriptions of Spontaneous Speech Using fastText and CNN Models(PDF)
Frontiers in Computer Science, section Human-Media Interaction, DOI: 2021/1/25
Meghanani Amit, C S ANOOP, Angarai Ganesan Ramakrishnan
Relative occurrences and difference of extrema for detection of transitions between broad phonetic classes (PDF)
Sadhana, Vol. 43 (10), Article 153, 2018.
T V Ananthapadmanabha, K V Vijay Girish and A G Ramakrishnan
Intrinsic-cum-extrinsic normalization of formant data of vowels (PDF)
Journal of the Acoustical Society of America Express Letters, Vol. 140(5), Nov. 2016, pp. EL446 - 451, DOI: 10.1121/1.4967311
T V Ananthapadmanabha, A G Ramakrishnan
Cumulative Impulse Strength for Epoch Extraction (PDF)
IEEE Signal Processing Letters, pp, 2015
A P Prathosh, P Sujith, A G Ramakrishnan and Prasanta K Ghosh
Voice source characterization using pitch synchronous discrete cosine transform for speaker identification (PDF)
Journal of the Acoustical Society of America Express Letters, Vol. 137(), pp. , 2015
A G Ramakrishnan, B Abhiram and S R Mahadeva Prasanna
Estimation of voice-onset time in continuous speech using temporal measures (PDF)
Journal of the Acoustical Society of America Express Letters, Vol. 136(2), Aug. 2014, pp. EL122 - EL128., 2014
A P Prathosh, A G Ramakrishnan, T V Ananthapadmanabha
Detection of the closure-burst transitions of stops and affricates in continuous speech using the plosion index (PDF)
Journal of the Acoustical Society of America, Vol. 135 (1), 2014
T V Ananthapadmanabha, A P Prathosh, A G Ramakrishnan
Epoch extraction based on integrated linear prediction residual using plosion index (PDF)
IEEE Transactions on Audio, Speech and Language Processing, 2013, Vol. 21, Iss. 12, pp. 2471-2480
A. P. Prathosh, T. V. Ananthapadmanabha, and A. G. Ramakrishnan
Pseudo Complex Cepstrum Using Discrete Cosine Transform (PDF)
International Journal of Speech Technology, 2005, Vol. 8, pp. 181-191
R. Muralishankar and A.G. Ramakrishnan
Modification of Pitch using DCT in the Source Domain (PDF)
Speech Communication, 2004, Vol. 42/2, pp. 143-154
R Muralishankar, A.G.Ramakrishnan and P Prathibha
Conference Publication
Exploring a unified ASR for multiple South Indian languages leveraging multilingual acoustic and language models(PDF)
Accepted in IEEE Spoken Language Technology Workshop, SLT 2022 , Jan 9-12, 2023
Anoop C S, AG Ramakrishnan
Efficient Human-Quality Kannada TTS using Transfer Learning on NVIDIA's Tacotron2(PDF)
Proc. International Conference on Electronics, Computing and Communication Technologies, IEEE CONECCT 2021, July 9-11, 2021
Anil Kumar K K, Shiva Kumar H R, Ramakrishnan Angarai Ganesan, Jnanesh K P
Unsupervised domain adaptation schemes for building ASR in low-resource languages(PDF)
Accepted in ASRU 2021 | IEEE Automatic Speech Recognition and Understanding Workshop | Cartagena, Colombia
Anoop C S, Prathosh A P, AG Ramakrishnan
Investigation of different G2P schemes for speech recognition in Sanskrit(PDF)
Proc. 28th International Conference on Neural Information Processing (ICONIP 2021)
Anoop C S, A G Ramakrishnan
CTC-Based End-To-End ASR for the Low Resource Sanskrit Language with Spectrogram Augmentation(PDF)
2021 National Conference on Communications (NCC), 2021, pp. 1-6, doi: 10.1109/NCC52529.2021.9530162
Anoop C. S. and A. G. Ramakrishnan
An Exploration Of Log-Mel Spectrogram And MFCC Features For Alzheimer's Dementia Recognition From Spontaneous Speech(PDF)
The 8th IEEE Spoken Language Technology Workshop (SLT 2021)
Amit Meghanani, Anoop C. S., A. G. Ramakrishnan
Human Perception and Machine Recognition of Speech: A Case Study with Respect to Unvoiced Segments and Gender of the Speaker
IEEE INDICON 2020
A Madhavaraj, TV Ananthapadmanabha, AG Ramakrishnan
Low-Resource End-to-end Sanskrit TTS using Tacotron2, WaveGlow and Transfer Learning
IEEE INDICON 2020
D Ankur, N Gangotri, SP Shridevi, AG Ramakrishnan
Pitch-synchronous Discrete Cosine Transform Features for Speaker Identification and Verification
9th International Conference on Pattern Recognition Applications and Methods (ICPRAM 2020)
A Meghanani, AG Ramakrishnan
Automatic Speech Recognition for Sanskrit(PDF)
2019 2nd International Conference on Intelligent Computing, Instrumentation and Control Technologies (ICICICT), 2019, pp. 1146-1151, doi: 10.1109/ICICICT46008.2019.8993283.
C. S. Anoop and A. G. Ramakrishnan
Improving Generalization of Monte Carlo Dropout Based DNN Ensemble Model for Speech Enhancement and Results on Real world, Traffic Noise,(PDF)
16th IEEE India Council International Conference, 13-15 December 2019
Nazreen P.M., A. G. Ramakrishnan
Data-pooling and Multi-Task Learning for Enhanced Performance of Speech Recognition Systems in Multiple Low Resourced Languages,(PDF)
Proc. 25th National Conference on Communications (NCC 2019)
A. Madhavaraj,A. G. Ramakrishnan
Discrimination of Sonorants from Fricatives Using a Scalar Feature Derived from Linear Prediction Coefficients(PDF)
Proc. 15-th India Council International Conference, Dec. 16-18, 2018
T. V. Ananthapadmanabha, A. G. Ramakrishnan, A. Madhavaraj, P. Balachandran
DNN Based Speech Enhancement for Unseen Noises Using Monte Carlo Dropout (PDF)
12th International Conference on Signal Processing and Communication Systems, ICSPCS 2018
Nazreen P.M., A G Ramakrishnan
Estimation of the Vocal Tract Length of Vowel Sounds based on the Frequency of the Significant Spectral Valley (PDF)
Proc. 19th Annual Conference of International Speech Communication Association (Interspeech 2018), Hyderabad, Sept. 2018.
T V Ananthapadmanabha, A G Ramakrishnan
A Joint Enhancement-Decoding Formulation for Noise Robust Phoneme Recognition (PDF)
Proc. 14th IEEE India Council International Conference (INDICON 2017), IIT Roorkee, Dec. 15-17, 2017
P M Nazreen, A G Ramakrishnan, Prasanta Kumar Ghosh
Design and development of a large vocabulary, continuous speech recognition system for Tamil (PDF)
Proc. 14th IEEE India Council International Conference (INDICON 2017), IIT Roorkee, Dec. 15-17, 2017
A Madhavaraj, A G Ramakrishnan
An objective critical distance measure based on the relative level of spectral valley (PDF)
Proc. 17th Annual Conference of the International Speech Communication Association (INTERSPEECH 2017), Stockholm, Sweden, Aug. 20-24, 2016
T V Ananthapadmanabha, A G Ramakrishnan and Shubham Sharma
A class-specific speech enhancement for phoneme recognition: a dictionary learning approach (PDF)
Proc. 17th Annual Conference of the International Speech Communication Association (INTERSPEECH 2016), San Fransico, USA, Sept. 8-12, 2016
Nazreen PM, A G Ramakrishnan and Prasanta K Ghosh
Hierarchical classi?cation of speaker and background noise and estimation of SNR using sparse representation (PDF)
Proc. 17th Annual Conference of the International Speech Communication Association (INTERSPEECH 2016), San Fransico, USA, Sept. 8-12, 2016
K V Vijay Girish, A G Ramakrishnan and T V Ananthapadmanabha
Cosine similarity based dictionary learning and source recovery for classi?cation of diverse audio sources (PDF)
Proc. 13th Internation IEEE India Conference (INDICON 2016), Bangalore, India, Dec. 16-18, 2016
K V Vijay Girish, A G Ramakrishnan and T V Ananthapadmanabha
Relationship between spoken Indian languages by clustering of long distance bigram features of speech (PDF)
Proc. 13th Internation IEEE India Conference (INDICON 2016), Bangalore, India, Dec. 16-18, 2016
K V Vijay Girish, Veena Vijai and A G Ramakrishnan
Classi?cation of place-of-articulation of stop consonants using temporal analysis (PDF)
Proc. 16th Annual Conference of the International Speech Communication Association (INTERSPEECH 2015), Dresden, Germany, Sept. 6-10, 2015
A P Prathosh, A G Ramakrishnan and T V Ananthapadmanabha
An Error Correction Scheme for GCI Detection Algorithms using Pitch Smoothness Criterion (PDF)
Proc. 16th Annual Conference of the International Speech Communication Association (INTERSPEECH 2015), Dresden, Germany, Sept. 6-10, 2015
P Sujith, AP Prathosh, AG Ramakrishnan and PK Ghosh
Combining Source and System Information for Limited Data Speaker Verification (PDF)
Proc. 15th Annual Conference of the International Speech Communication Association (INTERSPEECH 2014), Singapore, Sept. 14-18, 201
Rohan Kumar Das, Abhiram B, S R Mahadeva Prasanna and A G Ramakrishnan
MILE TTS for Tamil for blizzard challenge 2014 (PDF)
Proc. of Blizzard Challenge Workshop, Singapore, Sept. 19, 201
Rajaram B S R, Shiva Kumar H R and A G Ramakrishnan
A fast algorithm for speech polarity detection using long-term linear prediction (PDF)
Proc. Tenth International Conference on Signal Processing and Communications (SPCOM 2014), Bangalore, July 22-24, 201
Bhanuprakash Abhiram, Prathosh A P, A G Ramakrishnan
SUBBAND ANALYSIS OF LINEAR PREDICTION RESIDUAL FOR THE ESTIMATION OF GLOTTAL CLOSURE INSTANTS (PDF)
Proc. ICASSP 2014, Florence, Italy, May 4-9, 201
Vikram R L, K V Vijay Girish, Harshavardhan S , A G Ramakrishnan and T V Ananthapadmanabha
Speech Technology and Tamil (PDF)
Proc. National Conference on Tamil Internet, Chennai, Jan. 6, 2014. Organized by World Tamil Sangam, Madurai, India
A G Ramakrishnan
MILE TTS for Tamil and Kannada for blizzard challenge 2013 (PDF)
Proc. of Blizzard Challenge Workshop, Barcelona, Spain, September 3rd 201
Shiva Kumar H R, Ashwini J K, Rajaram B S R and A G Ramakrishnan
Modeling basic emotions for Tamil speech synthesis (PDF)
Proc. 12-th International Tamil Internet Conf., Kuala Lumpur, Malaysia, Aug. 15-18, 2013
A G Ramakrishnan and Lakshmi Chithambaran
Sub-band Envelope Approach to Obtain Instants of Significant Excitation in Speech (PDF)
Proc. 18th National Conference on Communications (NCC 2012), 2012, Kharagpur, India
Vikram Ramesh Lakkavalli, K V Vijay Girish and A G Ramakrishnan
Bilingual TTS for Tamil and English (PDF)
Proc. Tamil Internet 2010, Coimbatore, June 23-26, 2010, pp. 303 - 30
A G Ramakrishnan, L R Vikram, Abhinava, H R Shiva Kumar
Speaking tool in Tamil for vocally disabled (PDF)
Tamil Internet 2010, Coimbatore, June 23-26, 2010, pp. 327 - 32
K Shashikiran, Abhinava, Swapnil Belhe, A G Ramakrishnan
Continuity Metric for Unit Selection based Text-to-Speech Synthesis (PDF)
IEEE International Conference On Signal Processing and Communications (SPCOM 2010), 2010, Bangalore, Indi
Vikram Ramesh Lakkavalli, Arulmozhi P and A G Ramakrishnan
A Research bed for unit selection based text to speech synthesis (PDF)
Proc. IEEE Workshop on spoken language technolog (SLT 08), Dec. 15-18, 2008, Goa, Indi
K.Partha Sarathy and A.G.Ramakrishnan
Perceptual-MVDR based analysis-synthesis of pitch synchronous frames for pitch modification (PDF)
Proc. 2008 IEEE International Conf. Multimedia and Expo, ICME 2008, June 23-26 2008, Hannover, Germany. pp. 81-84, IEEE, 200
Rangarao Muralishankar, Mamindapalli Ravi Shanker, A. G. Ramakrishnan.
Text to speech synthesis system for mobile applications (PDF)
Proc. Workshop in Image and Signal Processing (WISP-2007), IIT Guwahati, Dec 28-29 2007, pp. 74-7
K.Partha Sarathy and A.G.Ramakrishnan
Sinusoidal analysis and music inspired filter bank for training-free speech segmentation for TTS (PDF)
Proc. Workshop in Image and Signal Processing (WISP-2007), IIT Guwahati, Dec 28-29 2007, pp. 78-8
H.G.Ranjani, G.Ananthakrishnan and A.G.Ramakrishnan
Explicit segmentation of speech signals using Bach filter banks (PDF)
Proc. at Workshop in Image and Signal Processing (WISP-2007), IIT Guwahati, Dec 28-29 2007, pp. 47-5
H.G.Ranjani, G.Ananthakrishnan and A.G.Ramakrishnan
Bauer Method of MVDR Spectral Factorization for Pitch Modification in the Source Domain (PDF)
Proc. IEEE Workshop on Applications of Signal Processing to Audio and Acoustics (WASPAA 2007), New Paltz, New York, October 21-24, 2007, pp. 263-266
Ravishanker, R.Muralishankar and A.G.Ramakrishnan
MVDR spectral estimation for DCT based pitch modification (PDF)
Proc. 3rd Language and Technology Conference, Poznan, Poland, October 5-7, 2007, pp. 241-245
Muralishankar, Ravishanker and A.G.Ramakrishnan
Festival Based Maiden TTS System for Tamil Language (PDF)
Proc. 3rd Language and Technology Conference: Human Language Technologies as a Challenge for Computer Science and Linguistics, Poznan, Poland, Oct 5-7, 2007, pp. 187-191
Sreekanth Majji and A G Ramakrishnan
Comparative study of filter-bank mean-energy distance for automated segmentation of speech signals (PDF)
Proc. Intern. Conf. Sig. Proc. Commn. Networking, Chennai, Feb 22-24, 2007, pp. 6-10
G.Ananthakrishnan, H.G.Ranjani and A.G.Ramakrishnan
Relative pitch tracking for singing voice as application in query by humming systems (PDF)
Proc. IV IASTED Intern. Conf. Sig. Proc. Pattern Recog. Applications SPPRA 2007, Austria, Feb. 14-16, 2007, pp. 275-280
G.Ananthakrishnan and A.G.Ramakrishnan
Language independent automated segmentation of speech using Bach scale filter-banks (PDF)
Proc. IV Intl. Conf. on Intelligent Sensing Info. Proc., (ICISIP 2006), Dec 15-18, 2006, pp. 115-120
G.Ananthakrishnan, H.G.Ranjani and A.G.Ramakrishnan
Time Scaling of Speech and Music using Independent Subspace Analysis (PDF)
Proc. Intern. Conf. Signal Processing and Communication, Bangalore, Dec 11 - 14, 2004, pp. 310-31
R.Murali Shankar, Lakshmish.N.Kaushik, and A.G.Ramakrishnan
Time Scaling of Speech using Independent Subspace Analysis (PDF)
Proc. INTERSPEECH 2004 8th Intern. Conf. Spoken Language Processing, Oct 4 - 8, 2004, Vol 3, pp. 2465 - 2468
R.Murali Shankar, A.G.Ramakrishnan and Lakshmish.N.Kaushik
ICA in Speech Recognition using HMM's (PDF)
Proc. V International Conf Adv in Pattern Recognition (ICAPR 2003), ISI, Kolkata, Dec 10-13, 200
Joel Pinto, R.Muralishankar and A.G.Ramakrishnan
Subspace and hypothesis based effective segmentation of co-articulated basic-units for concatenative speech synthesis (PDF)
IEEE TENCON, Oct 15-17, Bangalore, 2003, Vol. 1, pp. 388-392.
R.Muralishankar, Srikanth and A.G.Ramakrishnan
Subspace based Vowel Consonant Segmentation (PDF)
Proc. IEEE Workshop on Statistical Signal Processing, Sept 28 - Oct 1, 2003, St.Louis, Missouri, pp. 589- 592
R.Muralishankar, A.Vijay Krishna and A.G.Ramakrishnan
Web-enabled Speech Synthesizer for Tamil (PDF)
Proc. Tamil Internet 2002, California, USA, Sept 27-29, San Francisco, pp. 134-140
P.Prathibha and A.G. Ramakrishnan
Thirukkural II - A Text-to-Speech Synthesis System (PDF)
Proc. Tamil Internet 2002, California, USA, Sept 27-29, San Francisco, pp. 126-133
P.Prathibha, A.G. Ramakrishnan and R.Muralishankar
Warped-LP residual resampling using DCT for pitch modification
Proc. ICSLP, Denver, Colorado, Sept. 22-25, 20
R.Muralishankar, A.G.Ramakrishnan and P.Prathibha
A Complete Text-to-Speech Synthesis System in Tamil (PDF)
Proc. IEEE 2002 Workshop Speech Synthesis, Santa Monica, CA USA, Sep. 11-13, 2002, pp. 191-194
G.L.Jayavardhana Rama, A.G.Ramakrishnan, R.Muralishankar and P.Prathibha
DCT based pseudo complex cepstrum (PDF)
Proc. IEEE ICASSP 2002, Florida, USA, May 13 - 17, 2002, Vol. 1, pp. 521-52
R.Muralishankar and A.G.Ramakrishnan
Thirukkural - a text-to-speech synthesis system (PDF)
Proc. Tamil Internet 2001, Kuala Lumpur, August 26-28, 2001, pp. 92-97
G.L.Jayavardhana Rama, A.G.Ramakrishnan, M.Vijay Venkatesh, and R.Muralishankar
DCT based pitch modification (PDF)
Sixth Biennial Conference on Signal Processing and Communication SPCOM 01, IISc, Bangalore, July 15-18, 2001, pp. 114-11
R. MuraliSankar, A.G.Ramakrishnan, A.K.Rohitprasad and M.Anoop
Synthesis of Speech with Emotions (PDF)
Proc. Intern. Conf. Commn., Computers and Devices, Kharagpur, Dec. 14-16, 2000, pp. 767-770
R.Murali Shankar and A.G.Ramakrishnan
A DCT based approach to Estimation of Pitch (PDF)
Proc. Intern. Conf. Multimedia Processing and Systems, Chennai, Aug. 13-15, 2000, pp. 54-57
K.Suresh and A.G.Ramakrishnan
Robust Pitch Detection using DCT based Spectral Autocorrelation (PDF)
Proc. Intern. Conf. Multimedia Processing and Systems (ICMPS), Chennai, Aug. 13-15, 2000, pp. 129-132
R. Murali shankar and A. G. Ramakrishnan
A preliminary speech synthesis system in Tamil
TamilNet 99 - International Conf. on Tamil in Information Technology, Chennai, Feb. 7-8, 1999
A.G.Ramakrishnan and V.Karthigeyan
Machine learning in Neuroscience
Journals Publication
High theta-low alpha modulation of brain-electric activity during eyes-open Brahma Kumaris Rajyoga meditation
(PDF)Mindfulness, in press, June 2023
Kanishka Sharma, Peter Achermann, Bhawna Panwar, Shrikant Sahoo, Roberto D Pascual-Marqui, Pascal L Faber, Ramakrishnan Angarai Ganesan
Decoding Imagined Speech from EEG using Transfer Learning
IEEE Access (2021)
J.T. Panachakel, A.G. Ramakrishnan
Decoding Covert Speech from EEG - A Comprehensive Review
Frontiers in Neuroscience 15 (2021): 392
J.T. Panachakel, A.G. Ramakrishnan
Reliable sleep staging of unseen subjects with fusion of multiple EEG features and RUSBoost (PDF)
Biomedical Signal Processing and Control, 2021
Ritika Jain and Ramakrishnan, Angarai Ganesan
Electrophysiological and Neuroimaging Studies - During Resting State and Sensory Stimulation in Disorders of Consciousness: A Review
Frontiers in Neuroscience Vol. 14, pp. 987, Sepember 2020
R Jain, AG Ramakrishnan
Reconstruction of EEG from limited channel acquisition using estimated signal correlation (PDF)
In press, Biomedical Signal processing and Control, 2016
A. G. Ramakrishnan and J. V. Satyanarayana
Conference Publication
DCLL - A Deep Network for Possible Real-time Decoding of Imagined Words(PDF)
7th International Symposium on Intelligent Informatics (ISI-2022)
Jerrin Thomas Panachakel and Ramakrishnan A G
Single EOG channel performs well in distinguishing sleep from waking state for both normal and diseased individuals(PDF)
44th IEEE International Engineering in Medicine and Biology Conference (EMBC 2022)
Ritika Jain, Angarai Ganesan Ramakrishnan
Assessment of submentalis muscle activity for sleep-wake classification of healthy individuals and patients with sleep disorders(PDF)
44th IEEE International Engineering in Medicine and Biology Conference (EMBC 2022)
Ritika Jain, Angarai Ganesan Ramakrishnan
Poincare plot analysis for sleep-wake classification of unseen patients' using a single EEG channel(PDF)
17th IEEE International Symposium on Medical Measurements and Applications
Jain Ritika, Angarai Ganesan Ramakrishnan
Effects of Breathing and Breath-hold on Brain Functional Connectivity(PDF)
17th IEEE International Symposium on Medical Measurements and Applications
AS Anusha, AG Ramakrishnan, A Adarsh, Sharma Kanishka, K. G. Pradeep Kumar
Automated classification of EEG into meditation and non-meditation epochs using common spatial pattern, linear discriminant analysis, and LSTM(PDF)
IEEE TENCON 2021
Jerrin Thomas Panachakel, Pradeep Kumar G., Ramakrishnan A G and Kanishka Sharma
Binary classification of meditative state from the resting state using EEG(PDF)
Indicon 2021
Jerrin Thomas Panachakel, Pradeep Kumar Govindaiah, Kanishka Sharma and Ramakrishnan Angarai Ganesan
Increased Entropy of Gamma Oscillations in the Frontal Region during Meditation(PDF)
43rd Annual International Conference of the IEEE Engineering in Medicine and Biology Society, Nov. 1-5, 2021
G. Pradeep Kumar, Member, IEEE, Kanishka Sharma, A. G. Ramakrishnan, Senior Member, IEEE and A. Adarsh
A Novel Common Spatial Pattern-Deep Neural Network Architecture for Decoding Imagined speech, In(PDF)
IEEE CONECCT 2021
Jerrin Thomas Panachakel, A G Ramakrishnan, T V Ananthapadmanabha
Midline EEG Functional Connectivity As Biomarker for Conscious States in Sleep and Wakefulness(PDF)
43rd Annual International Conference of the IEEE Engineering in Medicine and Biology Society, Nov. 1-5, 2021
Anusha A S and A G Ramakrishnan
Brain Functional Connectivity as Biomarker for Propofol-Induced Alterations of Consciousness(PDF)
43rd Annual International Conference of the IEEE Engineering in Medicine and Biology Society, Nov. 1-5, 2021
Anusha A S and A G Ramakrishnan
Can We Identify the Category of Imagined Phoneme From EEG?(PDF)
Proceedings of IEEE EMBC 2021
Jerrin Thomas Panachakel, Kanishka Sharma, Anusha A S, and Ramakrishnan A G
Classification of Phonological Categories in Imagined Speech using Phase Synchronization Measure(PDF)
Proceedings of IEEE EMBC 2021
Jerrin Thomas Panachakel and Ramakrishnan A G
An Efficient sleep scoring Method using Visibility Graph and Temporal features of Single-Channel EEG (PDF)
43rd Annual International Conference of the IEEE Engineering in Medicine and Biology Society, Nov. 1-5, 2021
Ritika Jain and Ramakrishnan Angarai Ganesan
Fuzzy Entropy as a Measure of EEG Complexity During Rajyoga Practice in Long-Term Meditators(PDF)
IEEE INDICON 2020
Pradeep Kumar G, Ramakrishnan Angarai Ganesan, Kanishka Sharma
Characterization of Meditation EEG Based on Consistency of Covariance Matrices over Time (PDF)
IEEE INDICON 2020
Ramakrishnan Angarai Ganesan, Pradeep Kumar G, Kanishka Sharma
Binary State Prediction of Sleep or Wakefulness Using EEG and EOG Features (PDF)
IEEE 17th India Council International Conference (INDICON), 2020
Ramakrishnan Angarai Ganesan and Ritika Jain
Sleep-Awake Classification Using EEG Band-Power-Ratios and Complexity Measures.(PDF)
IEEE 17th India Council International Conference (INDICON), 2020
Ritika Jain and Ramakrishnan Angarai Ganesan
Medical Signal Processing
Journals Publication
Brain-electric activity during eyes open Brahma Kumaris Rajayoga meditation.
MindRxiv, 2020
Kanishka Sharma, Peter Achermann, Bhawna Panwar, Shrikant Sahoo, Ramakrishnan Angarai, Roberto D Pascual-Marqui, Pascal Faber
Threshold-independent QRS detection using the dynamic plosion index(PDF)
IEEE Signal Processing Letters, Vol. 21, No. 5, pp. 554-558, May 2014
A. G. Ramakrishnan, A.P. Prathosh and T. V. Ananthapadmanabha
An Improved EEG Acquisition Protocol Facilitates Localized Neural Activation(PDF)
Advances in Communication Systems and Networks, pp. 267 - 281
Jerrrin Thomas Panachakel, Netrakanti Vinaya Nandagopal, Nunna Maanvi, Angarai Ganesan Ramakrishnan, Sharma Kanishka
Spectral analysis of noise in the neonatal intensive care unit (PDF)
Indian Journal of Paediatrics, March 2008, Vol. 75, No. 3, pp. 217-222
M.D.Livera, B.Priya, A.Ramesh, P.N.Suman Rao, V.Srilaxmi, M.Nagapoornima, A.G.Ramakrishnan, M.Dominic and Swarnarekha
Wavelet-based Estimation of Hemodynamic Response Function from fMRI data (PDF)
International Journal for Neural Systems, World scientific publishing company, April 2006, Volume 16, No. 2, pp. 125-138
R.Srikanth and A.G.Ramakrishnan
An Efficient Wavelet VQ Coder for ECG (PDF)
Medical and Life Sciences Engineering, Vol. 15, Jan. 2006, pp. 13-19.
M.V.S.Phani Narasimham and A.G.Ramakrishnan
Wavelet domain nonlinear filtering for evoked potential enhancement (PDF)
Computers and Biomed. Research, 2000, 33, pp. 431-446
G.Sita and A.G.Ramakrishnan
Effect of two selected yogic breathing techniques on heart rate variability (PDF)
Ind. J. Physiol. Pharmacol., 1998, Vol. 42, No. 4, pp. 467-4
P.Raghuraj, A.G.Ramakrishnan, H.R.Nagendra and Shirley Teles
Heart rate variability as an index of cue reactivity in alcoholics (PDF)
Biological Psychiatry, 1998, Vol. 43, pp. 544-546
I.Rajan, P.J.Naga Venkatesha Murthy, A.G.Ramakrishnan, B.N.Gangadhar and N.Janakiramaiah
ECG coding by wavelet-based linear prediction (PDF)
IEEE Trans. Biomed. Eng., 1997, Vol. 44, No. 12, pp. 1253-1261
A.G.Ramakrishnan and S.Saha
Subclinical autonomic neuropathy in alcoholics: Decreased heart rate variability (PDF)
NIMHANS Journal, July 1997, Vol. 15, No. 3, pp. 219-223.
M.S.Jayaprakash, A.G.Ramakrishnan, P.J.N.V.Murthy, B.N.Gangadhar and N.Janakiramaiah
ECG Compression by multirate processing of beats (PDF)
Computers and Biomed. Res., Oct. 1996, Vol. 29, pp. 407-417
A.G.Ramakrishnan and Supratim Saha
Electrophysiological correlates of hanseniasis (PDF)
International Journal of Leprosy, Sept 1995, Vol. 63, No.3, pp. 395-408
A.G. Ramakrishnan and T.M. Srinivasan
Technical Publication
Compressed EEG Acquisition with Limited Channels using Estimated Signal Correlation (PDF)
arXiv preprint arXiv:1407.1285, July 2014
J V Satyanarayana and A G Ramakrishnan
Conference Publication
An Exploration Of Log-Mel Spectrogram And MFCC Features For Alzheimer's Dementia Recognition From Spontaneous Speech(PDF)
The 8th IEEE Spoken Language Technology Workshop (SLT 2021)
Amit Meghanani, Anoop C. S., A. G. Ramakrishnan
Binary State Prediction of Sleep or Wakefulness Using EEG and EOG Features (PDF)
IEEE INDICON 2020
AG Ramakrishnan, J Ritika
Redesign of the COVID-19 ICUs to save the Corona warriors
2020 IEEE Bangalore Humanitarian Technology Conference (B-HTC 2020)
AG Ramakrishnan, S Kanishka
VR glasses based measurement of responses to dichoptic stimuli: A potential tool for quantifying amblyopia?(PDF)
2020 42nd Annual International Conference of the IEEE Engineering in Medicine & Biology Society (EMBC)
JT Panachakel, AG Ramakrishnan, KP Manjunath
R-wave Amplitude Changes and Atypical Heart Rate Changes Accompanying Breath Hold During Low Breathing Rates
2020 42nd Annual International Conference of the IEEE Engineering in Medicine & Biology Society (EMBC)
AG Ramakrishnan, A Adarsh
A Pilot Study on Amblyopic Children for Possible Quantification of the Left/Right Mismatch(PDF)
International Conference on Electronics, Computing and Communication Technologies (CONECCT 2020)
JT Panachakel, AG Ramakrishnan, KP Manjunath
Decoding Imagined Speech Using Wavelet Features and Deep Neural Networks (PDF)
Proceedings of IEEE Indicon 2019, December 13-15, 2019
Jerrin Thomas Panachakel, A.G. Ramakrishnan, and T.V. Ananthapadmanabha
Voice activity detection from the breathing pattern of the speaker (PDF)
Proc. 14th IEEE India Council International Conference (INDICON 2017), IIT Roorkee, Dec. 15-17, 2017
A G Ramakrishnan, Gireesh Krishnan, S Srivathsan
Wavelet-based estimation of Hemodynamic Response Function (PDF)
Proc. ICONIP-2004, Calcutta, Nov 22-25, 2004, pp. 1285-12
R.Srikanth, R.Muralishankar and A.G.Ramakrishnan
Parameter Estimation of HRF and Classification of fMRI data using Probabilistic PCA Modeling (PDF)
Proc. V International Conf Adv in Pattern Recognition (ICAPR 2003), ISI, Kolkata, Dec 10-13, 2003.
R.Srikanth and A.G.Ramakrishnan
Signal Subspace Enhancement and MAP Parameter Estimation of fMRI Signals (PDF)
IEEE TENCON-03, Oct 15-17, Bangalore, 2003, Vol 2, pp. 520-524
R.Srikanth, A.G.Ramakrishnan and P.N.Jayakumar
Machine Reading of Tamil Books - An Aid for the Blind (PDF)
Proc. International Conf. on Biomedical Engg., Bangalore, Dec. 21-24, 2001, pp. 173-177
K G Aparna, G L Jayavardhana Rama and A G Ramakrishnan
Windows based package for heart rate variability analysis (PDF)
Proc. International Conf. on Biomedical Engg., Bangalore, Dec. 21-24, 2001, pp. 241-24
A.G.Ramakrishnan and Aruna Ragu
Spatially selective Wiener filtering in the wavelet domain for EP estimation (PDF)
Proc. International Conf. on Biomedical Engg., Bangalore, Dec. 21-24, 2001, pp. 178-18
G.Sita and A.G.Ramakrishnan
Fractal dimension of seizure EEG during ECT predicts therapeutic effects in depression (PDF)
Proc. International Conf. on Biomedical Engg. BioVision 2001, Bangalore, Dec. 21-24, 2001, pp. 168-172
B.N.Gangadhar, D.K.Subbakrishna, A.G.Ramakrishnan, E.S.M.Saravanan, G.Umamaheswara Rao and N.Janakiramaiah
Evoked potential Signal estimation using Gaussian Radial Basis Function Network (PDF)
Proc. Intern. Conf. Neural Networks (ICANN 2001), Vienna, Austria, Aug. 21-24, 2001, pp. 630 to 635
G.Sita and A.G.Ramakrishnan
Adaptive Volterra filter for evoked potential estimation (PDF)
Proc. Symposium on BME and Nuclear Medicine, Mumbai, India, Jan. 27-29, 2000, pp. 8-14
G.Sita and A.G.Ramakrishnan
Beat Adaptive VQ Coder for ECG (PDF)
Proc. European Medical and Biological Engineering Conference-EMBEC'99, Vienna, Austria, Nov. 04 - 07, 1999
A.G.Ramakrishnan and M.V.S.Phani Narasimham
Topographic mapping of the brain electrical activity (PDF)
Proc. National Conf. Biomed. Eng., Manipal, April 9-11, 1998, pp. III-7 to III-9.
R.Murali Shankar and A.G.Ramakrishnan
ECG Compression using adaptive vector quantiser (PDF)
Proc. National Conf. Biomed. Eng., Manipal, April 9-11, 1998, pp. II-4 to II-6.
M.V.S.Phani Narasimham and A.G.Ramakrishnan
Holter ECG Compression using DSP (PDF)
Proc. Nat. Conf. Biomed. Eng., Manipal, April 9-11, 1998, pp. II-39 to II-41.
Shah Anup Ushakant and A.G.Ramakrishnan
A novel technique for QRS Detection (PDF)
Proc. National Conf. Adv. in Biomed. Eng., Cochin, Sept. 4-6, 1997. pp. I-38 to I-41
A.G.Ramakrishnan
Compression schemes for ECG with good reconstruction in the QRS zone (PDF)
Proc. National Conf. Adv. in Biomed. Eng., Cochin, Sept. 4-6, 1997, pp. I-34 to I-37
M.V.S.Phani Narasimham and A.G.Ramakrishnan
EP signal reconstruction from bispectral domain (PDF)
Proc. National Conf. Adv. in Biomed. Eng., Cochin, Sept. 4-6, 1997, pp. I-30 to I-33
G.Sita and A.G.Ramakrishnan
Heart Rate Variability Analysis - an Overview (PDF)
M.I.T. Technical Review, Vol. 6, May 1997, pp. 20-23
A.G.Ramakrishnan
Transmission of Chosen Transform Coefficients of Normalized Cardiac Beats for Compression (PDF)
Proc. ICASSP '97, Munich, Germany, Apr. 20-24, 1997, Vol. 3, pp. 1901-1904
S.Saha and A.G.Ramakrishnan
Off-line coding of multichannel ECG (PDF)
in Current trends in Biomedical Engineering, S. Radhakrishnan and M. Ramasubba Reddy, Ed. New Delhi: Allied Publishers Ltd., 1996, pp. 137-140
S.Saha and A.G.Ramakrishnan
Estimation of nonlinear parameters for characterizing HRV (PDF)
in Proc. XV Ann. Conf. Biomed. Engg. Society of India, Coimbatore, 12-14, Dec. 1996, PP.I-9 to I-13
Kaushik Basu, B.N.Gangadhar and A.G.Ramakrishnan
Vector Quantization of ECG Beats (PDF)
in Proc. XV Ann. Conf. Biomed. Engg. Society of India, Coimbatore, Dec. 14-16, 1996, pp. VII.30-VII.32
A.G.Ramakrishnan and S.Saha
Filtering and Latency Correction for Improved EP Estimation (PDF)
Proc. XV Ann. Conf. Biomed. Engg. Soc. of India, Coimbatore, Dec. 14-16, 1996, pp. III.20-III.24
G.Sita and A.G.Ramakrishnan
Research in yoga and meditation and heart rate variability (PDF)
in Proc. of the III Intern. Conf. Res. and Appln. of Yoga, Bangalore, Dec. 23-27, 1995
A.G.Ramakrishnan
Signal estimation techniques in event related potential research (PDF)
M.I.T. Technical Review, Vol. 5, pp. 46-50, Dec. 1995
G.Sita and A.G.Ramakrishnan
Time Varying Filters for Estimation of Evoked Potentials (PDF)
in Proc. First Regional International Conf IEEE - Engineering in Medicine and Biology Society, New Delhi, February 15-18, 1995, pp. 3.33 - 3.3
G.Sita, R.V.S.Sastry and A.G.Ramakrishnan
Wavelet transforms for compound nerve action potential analysis (PDF)
in Proc. First Regional International Conf IEEE - Engineering in Medicine and Biology Society, New Delhi, February 15-18, 1995, pp.2/70-2/7
A.G.Ramakrishnan and R.V.S.Sastry
Estimation of Degree of Pathology of Nerve Fibers (PDF)
in Proc. of the World Congress on Medical Physics and Biomedical Engineering, Rio de Janeiro, Brazil, 21-26, August 1994
A.G.Ramakrishnan
Central conduction in Leprosy - a multidomain study (PDF)
Proc. IEEE EMBS, Paris, Oct 29-Nov 1, 1992, Vol 6, pp. 2491-2492
T.M.Srinivasan and A.G.Ramakrishnan
Modelling of compound nerve action potentials in health and disease (PDF)
Proc. IEEE EMBS, Paris, Oct 29-Nov 1, 1992, Vol 6, pp. 2600-2601
Budagavi Madhukar, I.S.N.Murthy and A.G.Ramakrishnan
Brain Hemispheric Activity during Forced Nostril Breathing (PDF)
Proc. First Annual Conference of International Society for the Study of Subtle Energies and Energy Medicine, Boulder, CO, USA, June 21-25, 1991, pp. 85-88
A.G.Ramakrishnan and T. M. Srinivasan
Biometrics
Journals Publication
Binary classification posed as a quadratically constrained quadratic programming and solved using particle swarm optimization (PDF)
Sadhana, Dec 2015
Deepak Kumar and A G Ramakrishnan
Low Order Anti-aliasing Filters for Sparse Signals in Embedded Applications (PDF)
Sadhana, Vol. 38, Part 3, June 2013, pp. 397-405
J.V.Satyanarayana and A.G.Ramakrishnan
Conference Publication
Compressed acquisition of correlated signals (PDF)
Proc. 18th National Conference on Communications (NCC 2012), 2012, Kharagpur, India
J.V.Satyanarayana and A.G.Ramakrishnan
Multiplexed compressed sensing for general frequency sparse signals (PDF)
IEEE International Conference on Communications and Signal Processing (ICCSP 2011), 2011, Calicut, Indi
J.V.Satyanarayana and A.G.Ramakrishnan
Frequency detection from multiplexed compressed sensing of noisy signals (PDF)
Proc. 17th National Conference on Communications (NCC 2011), 2011, Bangalore, India
J.V.Satyanarayana and A.G.Ramakrishnan
MOSAICS: Multiplexed optimal signal acquisition involving compressed sensing (PDF)
IEEE International Conference on Signal Processing and Communications (SPCOM 2010), 2010, Bangalore, India
J.V.Satyanarayana and A.G.Ramakrishnan
Can biological motion be a biometric? (PDF)
Proc. IV IEEE Intern. Conf. Intelligent Sensing and Information Processing (ICISIP 2006), pp. 2 - 4.
P B Pati, A G Ramakrishnan
Other areas
Journals Publication
Cardiorespiratory and Endocrine Mechanisms behind the Effectiveness of Pranayama
Handbook of Research on Evidence-based Perspectives on the Psychophysiology of Yoga and Its Applications, 2020
A G Ramakrishnan
Binary classification posed as a quadratically constrained quadratic programming and solved using particle swarm optimization (PDF)
Sadhana, Dec 2015
Deepak Kumar and A G Ramakrishnan
Low Order Anti-aliasing Filters for Sparse Signals in Embedded Applications (PDF)
Sadhana, Vol. 38, Part 3, June 2013, pp. 397-405
J.V.Satyanarayana and A.G.Ramakrishnan
Composite MR image reconstruction and unaliasing for general trajectories using Neural Network (PDF)
Magnetic Resonance Imaging, Vol 28, Issue 10, pp. 1468-1484, December 2010
Neelam Sinha, A. G. Ramakrishnan and Manojkumar Saranathan
Improved kt-BLAST for fast fMRI Imaging (PDF)
in Journal for Magnetic Resonance, Vol 204, pp. 273-280, 2010
Neelam Sinha , Manojkumar Saranathan and A. G. Ramakrishnan
Quality Assessment in Magnetic Resonance Image (PDF)
invited review article, Critical Reviews in Biomedical Engineering, Vol 38(2), pp. 127-141, 2010
Neelam Sinha and A. G. Ramakrishnan
Dynamic MR Imaging using generalized series (PDF)
in International Journal for Magnetic Resonance Imaging, Vol 2, No. 1, pp. 3-21, 2010
Neelam Sinha, Manojkumar Saranathan and A. G. Ramakrishnan
Polarization rich continuous wave direct imaging: modeling and visualization (PDF)
Applied Optics, June 2006, Vol. 45, No. 18, pp. 4344-4354
R.S.Umesh, A.G.Ramakrishnan, R.Srikanth, R.Hema and S.Divya
Fetal lung maturity analysis using ultrasound image feature (PDF)
IEEE Trans. Inf. Tech. Biomedicine, March 2002, Vol. 6, Issue 1, pp. 38-45
K.N.Bhanuprakash, A.G.Ramakrishnan, S.Suresh, and Teresa W.P.Chow
An investigation into the feasibility of fetal lung maturity prediction using statistical textural feature (PDF)
Ultrasonic Imaging, 2001, Vol. 22, No. 1, pp. 39-50
K.N.Bhanuprakash, A.G.Ramakrishnan, S.Sureshand and Teresa.W.P.Chow
Contextual Encoding in Uniform and Adaptive Mesh-based Lossless Compression of MR Image (PDF)
IEEE Trans. Medical Imaging, Sept. 2005, Vol 24, Issue 9, pp. 1199-1206
R.Srikanth and A.G.Ramakrishnan
Conference Publication
An Elegant Experimental Setup for Accurate Presentation of Dichoptic Stimuli, In(PDF)
IEEE Region 10 Humanitarian Technology Conference (R10 HTC) 2021
Jerrin Thomas Panachakel, A G Ramakrishnan and Kanisha Sharma
Evidence for Gender Bias in Color Perception:Men recognize colors faster In(PDF)
The Sixth Annual conference of the Association for Cognitive Science (ACCS). 2019
Jerrin Thomas Panachakel, Aprameya Bharadwaj, Roshan Neil Livingstone and A G Ramakrishnan
Computationally Efficient Approaches for Image Style Transfer (PDF)
Proc. 15-th India Council International Conference, Dec. 16-18, 2018
R K Pandey, S Karmakar and A G Ramakrishnan
MSCE: An edge preserving robust loss function for improving super-resolution algorithms (PDF)
Proc. 25-th International Conference on Neural Information Processing, Siem Reap Cambodia, Dec. 13-16, 2018
R K Pandey, N Saha, S Karmakar and A G Ramakrishnan
Classification of Bacterial Morphotypes from Images of ZN-stained Sputum-smears Towards Diagnosing Drug-resistant TB (PDF)
Proc. SPCOM 2016, June 12-15, 2016
Rijul Saurabh Soans, A G Ramakrishnan, V P Shenoy, Ramesh R Galigekere
Open source TamilNet99 keyboard for Android (PDF)
Proc. 13-th Tamil Internet Conference, Pondicherry, Sept. 19-21, 2014
H R Shiva Kumar and A G Ramakrishnan
An Accessible Translation System between Simple Kannada and Tamil Sentences (PDF)
Proc. 6-th Language and Technology Conf., Poznan, Poland, Dec. 07-09, 2013
Rajaram B S R, A G Ramakrishnan and Shiva Kumar H R
Detection and Classification of Diabetic Retinopathy using Retinal Image (PDF)
Proc. Annual IEEE India Conference (INDICON), 2011, pp. 1-6
Kanika Verma, Prakash Deep, A G Ramakrishnan
Language models in recognition applications: a new approach (PDF)
Proc. 12-th International Tamil Internet Conf., Kuala Lumpur, Malaysia, Aug. 15-18, 2013
A G Ramakrishnan and P. Arulmozhi
?????? ??????????? ???? ?????????????? ???????? : ??? ????? ?????????? (PDF)
12-??? ????? ????? ???? ???????? ????, ???????????, ???????, ?????? 15-18, 2013
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Compressed acquisition of correlated signals (PDF)
Proc. 18th National Conference on Communications (NCC 2012), 2012, Kharagpur, India
J.V.Satyanarayana and A.G.Ramakrishnan
Multiplexed compressed sensing for general frequency sparse signals (PDF)
IEEE International Conference on Communications and Signal Processing (ICCSP 2011), 2011, Calicut, Indi
J.V.Satyanarayana and A.G.Ramakrishnan
Frequency detection from multiplexed compressed sensing of noisy signals (PDF)
Proc. 17th National Conference on Communications (NCC 2011), 2011, Bangalore, India
J.V.Satyanarayana and A.G.Ramakrishnan
MOSAICS: Multiplexed optimal signal acquisition involving compressed sensing (PDF)
IEEE International Conference on Signal Processing and Communications (SPCOM 2010), 2010, Bangalore, India
J.V.Satyanarayana and A.G.Ramakrishnan
Can biological motion be a biometric? (PDF)
Proc. IV IEEE Intern. Conf. Intelligent Sensing and Information Processing (ICISIP 2006), pp. 2 - 4.
P B Pati, A G Ramakrishnan
MR image compression with ROI decoding, SNR and Spatial scalability (PDF)
Proc. IISc Centenary Conf -MCDES 2008, IISc Bangalore, May 27-31 2008
V.Ramesh Naidu, V.K.Aggarwal and A.G.Ramakrishnan
Ultra-fast fMRI imaging with high fidelity activation map (PDF)
LNCS-4233, Proc. XIII Intern. Conf. Neural Info Proc. ICONIP, Hong Kong, Oct 3-6, 2006, pp 361-368
Neelam Sinha, Manoj.K.Saranathan, A.G.Ramakrishnan, Juan Zhou and Jagat.C.Rajapakse
Knuckle based hand correlation for user authentication (PDF)
Proc. Biometric Technology for Human Identification III, SPIE, April 2006
Kumar Sricharan, Aneesh Reddy, A G Ramakrishnan
Region of Interest based Coding of 2-D and 3-D Magnetic Resonance Image (PDF)
Proc. ICVGIP-2004, Calcutta, Dec 16-18, 2004, pp. 388-393
R.Srikanth and A.G.Ramakrishnan
Estimation theoretic framework for comparing polarization based, continuous-wave direct imaging scheme (PDF)
Proc. Intern. Conf. Signal Proc Commun, Bangalore, Dec 11-14, 2004, pp. 535-539
R.S.Umesh, A.G.Ramakrishnan, R.Srikanth and H.Ramachandran
Shape adaptive integer wavelet transform based coding scheme for 2-D/3-D MR image (PDF)
Proc. IEEE Data Compression Conf., Snowbird, Utah, USA, 23-25 March 2004. Page(s):55
A.Mehrotra, R.Srikanth and A.G.Ramakrishnan
A New Coding Scheme for 2-D and 3-D MR Images using Shape Adaptive Integer Wavelet Transform (PDF)
Proc. International Conf Intelligent Sensors and Info. Processing, Jan 2004, pp. 67-72
A.Mehrotra, R.Srikanth and A.G.Ramakrishnan
Model based Bayesian approach for MR Image Segmentation (PDF)
Proc. V International Conf Adv in Pattern Recognition (ICAPR 2003), ISI, Kolkata, Dec 10-13, 2003
Niranjan Joshi, R.Srikanth and A.G.Ramakrishnan
Automation of differential blood count (PDF)
IEEE TENCON, Oct 15-17, Bangalore, 2003, Vol. 2, pp. 547-551
Neelam Sinha and A.G.Ramakrishnan
Wavelet-based Coding of 2-D and 3-D MR image (PDF)
IEEE, TENCON-03, Oct 14-17, Bangalore, 2003, Vol 2, pp. 515-519
R.Srikanth and A.G.Ramakrishnan
MR Image Coding using Content-based Mesh and Context (PDF)
International Symposium on Signal Processing and Applications (ISSPA-2003), July 1-4, 2003, Paris, France, pp. 85-88
R.Srikanth and A.G.Ramakrishnan
Context-based Interframe Coding of MR Image (PDF)
Proc. Indian Conf Vision, Graphics and Image processing (ICVGIP-02), Dec. 16-18, 2002
R.Srikanth and A.G.Ramakrishnan
Eye detection using color cues and projection functions (PDF)
Proc. Intern. Conf. Image Processing, ICIP 2002
RT Kumar, SK Raja, AG Ramakrishnan
Neural network-based segmentation of textures using Gabor features (PDF)
Prof. 12th IEEE Workshop on Neural Networks for Signal Processing, pp. 365 - 374, 2002
A.G. Ramakrishnan, S. Kumar Raja and H.V. Raghu Ram
Blood cell segmentation using EM algorithm (PDF)
Proc. Indian Conf Vision, Graphics and Image processing (ICVGIP-02), Dec. 16-18, 2002.
Neelam Sinha and A.G.Ramakrishnan
MR Image Enhancement by Nonlinear Technique (PDF)
Proc. National Conf. on Communication, IIT, Mumbai, Jan. 26-27, 2002.
K.N.Bhanu Prakash and A.G.Ramakrishnan
Ultrasound texture based assessment of fetal pulmonary risk (PDF)
Proc. International Conf. on Biomedical Engg. BioVision 2001, Bangalore, Dec. 21-24, 2001
K.N.Bhanuprakash and A.G.Ramakrishnan
Ultrasound Image Segmentation and Compression (PDF)
Proc. Symposium on BME and Nuclear Medicine, Mumbai, India, Jan. 27-29, 2000, pp. 144-148.
Saraswathi.B.R, Vidya.P.Kamath, Manish.R.B, Shibaji Shome, Suyog.M.Gaidhani, K.N.Bhanuprakash
Fetal lung maturity analysis using sonogram textural feature (PDF)
Proc. Symposium on BME and Nuclear Medicine, Mumbai, India, Jan. 27-29, 2000, pp. 155-161.
K.N.Bhanuprakash, A.G.Ramakrishnan, S.Suresh and Teresa.W.P.Chow
Can Sonogram Predict Fetal Lung Maturity (PDF)
Proc. XVIII Southern Biomedical Engineering Conf., Clemson, SC, USA, May 21-23, 1999
K.N.Bhanuprakash, A.G.Ramakrishnan, S.Suresh, T.W.P.Chow and S. Raman
A desirable undergraduate program in Biomedical Engineering (PDF)
Proc. National Conf. Biomed. Eng., Manipal, April 9-11, 1998, pp. IX-6 to IX-8
A.G.Ramakrishnan
Biomedical engineering education and job prospects in India (PDF)
Proc. National Conf. Biomed. Eng., Manipal, April 9-11, 1998, pp. IX-9 to IX-11.
Lakshmeesha and A.G.Ramakrishnan
Panmozhi Vaayil - A Multilingual Indic Keyboard Interface for Business and Personal Use (PDF)
Information Systems for Indian Languages, Vol. 139, Springer Berlin Heidelberg, Patiala, March 9-11, 2011, pp. 278 - 283, DOI 10.1007/978-3-642-19403-0_48
H R Shiva Kumar, Abhinava Shivakumar, Akshay Rao, S. Arun and A G Ramakrishnan
Prediction of Pauses in TTS \96 Tamil (PDF)
Proc. Tamil Internet 2010, Coimbatore, June 23-26, 2010, pp. 314 - 320.
P Arulmozhi, A G Ramakrishnan
Studies on Natural Variability in Human Speech and Perception for Enhancing the Quality of Synthetic Speech (PDF)
Proc. VI International Conf. on Natural Language Processing (ICON 2008), Dec. 20-22, 2008, Pune, India
A. G. Ramakrishnan, Laxmi Narayana M
Novel scheme to handle missing phonetic contexts in Speech synthesis, based on human perception and speech (PDF)
Proc. Workshop in Image and Signal Processing (WISP-2007), IIT Guwahati, Dec 28-29 2007, pp. 82-85
Laxmi Narayana.M and A.G.Ramakrishnan
Defining syllables and their stress labels in Tamil TTS corpus (PDF)
Proc. Workshop in Image and Signal Processing (WISP-2007), IIT Guwahati, Dec 28-29 2007, pp. 92-95
Laxmi Narayana.M and A.G.Ramakrishnan
Grapheme to Phoneme Conversion for Tamil Speech Synthesis (PDF)
Proc. Workshop in Image and Signal Processing (WISP-2007), IIT Guwahati, Dec 28-29 2007, pp. 96-99
A.G.Ramakrishnan and Laxmi Narayana.M
Natural Language Processing for Tamil TTS (PDF)
Proc. 3rd Language and Technology Conference, Poznan, Poland, Oct 5-7, 2007, pp. 192-196
A.G.Ramakrishnan, Lakshmish.N.Kaushik and Laxmi Narayana.M
Perception Experiments for effective Unit replacement in Tamil TTS (PDF)
Proc. 3rd Language and Technology Conference, Poznan, Poland, October 5-7, 2007, pp. 236-240
A.G.Ramakrishnan, Laxmi Narayana.M
Hindi text normalization (PDF)
Proc. V International Conf. Natural Language Processing (KBCS 2004), Hyderabad, Dec 19-22, 2004
K. Panchapagesan, Partha Pratim Talukdar, N. Sridhar Krishna, Kalika Bali and A. G. Ramakrishnan
Phonetic distance based cross-lingual search (PDF)
Proc. V International Conf. Natural Language Processing (KBCS 2004), Hyderabad, Dec 19-22, 2004
Sriram.S, Partha Pratim Talukdar, Sameer Badaskar, Kalika Bali and A.G.Ramakrishnan
Duration Modeling for Hindi Text-to-Speech Synthesis (PDF)
Proc. VIII Intern Conf Spoken Language Processing (INTERSPEECH 2004 - ICSLP), Jeju Island, Korea, Oct 4-7, 2004
Sridhar Krishna.N, Partha Pratim Talukdar, Kalika Bali and A.G.Ramakrishnan
TOOLS FOR THE DEVELOPMENT OF A HINDI SPEECH SYNTHESIS SYSTEM (PDF)
Proc. 5th ISCA Speech Synthesis Workshop, CMU, Pittsburgh, USA, June 14-16, 2004, pp.109-114
Kalika Bali, Partha Pratim Talukdar, N.Sridhar Krishna and A.G.Ramakrishnan
Automatic Generation of Compound Word Lexicon for Hindi Speech Synthesis (PDF)
Proc. 4th International Conference on Language Resources and Evaluation (LREC 2004), Lisbon, Portugal, May 26-30, 2004.
Deepa S R, Kalika Bali, A G Ramakrishnan and Partha Pratim Talukdar
Predictive Texting for Tamil (PDF)
Symposium on Indian Morphology, Phonology and Language Engineering, IIT Kharagpur, March 19-20, 2004
A G Ramakrishnan, K E Pradheep and Vaishnavi Ramaswamy
Human touch to Tamil Synthesizer (PDF)
Proc. Tamil Internet 2001, Kuala Lumpur, August 26-28, 2001, pp. 103-109
R.Muralishankar and A.G.Ramakrishnani
Issues in standardisation for text-to-speech in Tamil (PDF)
Proc. Tamil Internet 2001, Kuala Lumpur, August 26-28, 200
A.G.Ramakrishnan
PhD Theses
Efficient Design of Embedded Data Acquisition Systems based on Smart Sampling (PDF)
2015
J V Satyanarayana
Temporal Processing for Event-based Speech Analysis with Focus on Stop Consonants (PDF)
2015
Prathosh A P
3D Coding of MR Images and Estimation of Hemodynamic Response Estimation from fMRI Data (PDF)
2004
R Srikanth
MSc Theses
Characterization of the Voice Source by the DCT for Speaker Information (PDF)
2014
Abhiram Bhanuprakash