List of Publications of Ujjwal Bhattacharya:

 

Journals:

 

  1. O. Samanta, U. Bhattacharya, S.K. Parui, Smoothing of HMM parameters for efficient recognition of online handwriting, Pattern Recognition, vol. 47(11), pp. 3614-3629, 2014.

 

  1. U. Bhattacharya, M. Shridhar, S. K. Parui, P. K. Sen and B. B. Chaudhuri, Offline recognition of handwritten Bangla characters: an efficient two-stage approach, Pattern Analysis and Applications, vol. 15(4), pp 445-458, 2012.

 

  1. U. Bhattacharya and B. B. Chaudhuri, Handwritten numeral databases of Indian scripts and multistage recognition of mixed numerals, IEEE Trans. Pattern Analysis and Machine Intelligence, vol. 31(3), 2009, 444-457.

 

  1. U. Bhattacharya, T. K. Das, A. Datta, S. K. Parui and B. B. Chaudhuri, A Hybrid Scheme for Handprinted Numeral Recognition Based On a Self-Organizing Network and MLP Classifiers, International Journal for Pattern Recognition and Artificial Intelligence, 16(7), 2002, 845-864.

 

  1. B. B. Chaudhuri and U. Bhattacharya, Efficient training and improved performance of multilayer perceptron in pattern classification, Neurocomputing, 34, 2000, 11-27.

 

  1. U. Bhattacharya and S.K. Parui, An improved backpropagation neural network for detection of road-like features in satellite imagery, Int. J. Remote Sensing, 18(16), 1997, 3379-3394.

 

  1. U. Bhattacharya, B. B. Chaudhuri and S. K. Parui, An MLP-based texture segmentation method without selecting a feature set, Image and Vision Computing, 15, 1997, 937-948.

 

  1. S. Mukherjee, U. Bhattacharya, S.K. Parui, R. Gupta and R.K. Gulati, A multi-layered backpropagation artificial neural network algorithm for UV spectral classification, Astrophysics and Space Science, 239, 1996, 361-373.

 

  1. U. Bhattacharya and S.K. Parui, On the rate of convergence of perceptron learning, Pattern Recognition letters, 16(5), 491-497, 1995.

 

 

 

Refereed Conference Proceedings / Edited Volumes:

 

  1. P. Banerjee, U. Bhattacharya and B. B. Chaudhuri, Automatic Detection of Handwritten Texts from Video Frames of Lectures, Proc. of the 14th International Conference on Frontiers in Handwriting Recognition (ICFHR 2014) held at Crete, Greece during 1-4 September 2014, pp. 627 - 632.

  1. S. Baral, S. Bhattacharya, A. Chakraborty, U. Bhattacharya, S. K. Parui, A Machine Learning Approach to Detection of Core Region of Online Handwritten Bangla Word Samples, Proc. of the 14th International Conference on Frontiers in Handwriting Recognition (ICFHR 2014) held at Crete, Greece during 1-4 September 2014, pp. 458-463.

  1. D. Dutta, A. Roy Chowdhury, U. Bhattacharya and S. K. Parui, Stroke level User Adaptation for Stroke Order Free Online Handwriting Recognition, Proc. of the 14th International Conference on Frontiers in Handwriting Recognition (ICFHR 2014) held at Crete, Greece during 1-4 September 2014, pp. 250 - 255.

  1. B. Shaw, U. Bhattacharya and S. K. Parui, Combination of Features for Efficient Recognition of Offline Handwritten Devanagari Words, Proc. of the 14th International Conference on Frontiers in Handwriting Recognition (ICFHR 2014) held at Crete, Greece during 1-4 September 2014, pp. 240 - 245.

  1. B. Biswas, U. Bhattacharya and B. B. Chaudhuri, A Global-to-Local Approach to Binarization of Degraded Document Images, Proc. of the 22nd International Conference on Pattern Recognition (ICPR 2014) held at Stockholm, Sweden during 24-28 August 2014, pp. 3008 - 3013.

  1. A. Srimany, S. Dutta Chowdhury, U. Bhattacharya and S. K. Parui, Holistic Recognition of Online Handwritten Words Based on an Ensemble of SVM Classifiers, to be presented at the 11th IAPR International Workshop on Document Analysis Systems to be held at Tours - Loire Valley, France, during April 7th-10th, 2014.

  1. U. Bhattacharya, S. K. Parui and B. B. Chaudhuri, Recognition of Bangla Handwriting: Current Status and Future Directions, in Advances in Digital Document Processing and Retrieval, Eds. B. B. Chaudhuri, and S. K. Parui, Statistical Science and Interdisciplinary Research, vol. 13, pp. 287-321, World Scientific, 2014.

  1. A. Das and U. Bhattacharya, ISIgraphy: a Tool for Online Handwriting Sample Database Generation, Proc. of the NCVPRIPG 2013 held at Jodhpur, India during 18-21 December, 2013.

  1. S. Banerjee, K. Mullick and U. Bhattacharya, A robust approach to extraction of texts from camera captured images, Proc. of the 5th International Workshop on Camera-Based Document Analysis and Recognition (CBDAR 2013), held at Washington DC, USA on 23 Aug., 2013, pp. 53-58, 2013.

  1. T. Jindal and U. Bhattacharya, Recognition of offline handwritten numerals using an ensemble of MLPs combined by adaboost, ACM Proc. of the 4th International Workshop on Multilingual OCR (MOCR 2013), held in Washington DC, USA, on August 24, Article No. 18, 2013.

  1. L. Rothacker, G. A. Fink, P. Banerjee, U. Bhattacharya and B. B. Chaudhuri, Bag-of-Features HMMs for segmentation-free Bangla word spotting, ACM Proc. of the 4th International Workshop on Multilingual OCR (MOCR 2013), held in Washington DC, USA, on August 24, Article No. 5, 2013.

  1. S. Dutta Chowdhury, U. Bhattacharya and S. K. Parui, Levenshtein distance metric based holistic handwritten word recognition, Proc. of the 4th Int. Workshop on Multilingual OCR (MOCR 2013), Article No. 17, ACM New York, NY, USA, 2013.

  1. S. Dutta Chowdhury, U. Bhattacharya and S. K. Parui, Online handwriting recognition using Levenshtein distance metric, Proc. of the 12th International Conference on Document Analysis and Recognition (ICDAR 2013) held at Washington DC, USA during August 25-28, pp. 79-83, 2013.

  1. D. Dutta, A. Roy Chowdhury, U. Bhattacharya and S. K. Parui, Lightweight User-Adaptive Handwriting Recognizer for Resource Constrained Handheld Devices, Proc. of Workshop on Document Analysis and Recognition, pp. 114-119, ACM Conf. Proc. Series, 2012.

  1. Prakriti Banik, Ujjwal Bhattacharya and Swapan K. Parui, Segmentation of Bangla Words in Scene Images, Proc. of Indian Conf. on Comp. Vision, Graphics and Image Processing, ACM Conf. Proc. Series, 2012.

  1. A. Roy Chowdhury, U. Bhattacharya and S. K. Parui, Scene Text Detection using Sparse Stroke Information and MLP, Proc. of Int. Conf. on Pattern Recognition, pp. 294-297, IEEE Comp. Soc. Press, 2012.

  1. D. Dutta, A. Roy Chowdhury, U. Bhattacharya and S. K. Parui, Building a personal handwriting recognizer on an Android device, Proc. of Int. Conf. on Frontiers in Handwriting Recognition, pp. 682-687, IEEE Comp. Soc. Press, 2012.

 

  1. U. Bhattacharya, R. Banerjee, S. Baral, R. De and S. K. Parui, A semi-automatic annotation scheme for Bangla online mixed cursive handwriting samples, Proc. of Int. Conf. on Frontiers in Handwriting Recognition, pp. 676-681, IEEE Comp. Soc. Press, 2012.

 

  1. C. Biswas, U. Bhattacharya and S. K. Parui, HMM based online handwritten Bangla character recognition using Dirichlet distributions, Proc. of Int. Conf. on Frontiers in Handwriting Recognition, pp. 598-603, IEEE Comp. Soc. Press, 2012.

 

  1. Ayan Chaudhury and Ujjwal Bhattacharya, Efficient Segmentation of Characters in Printed Bengali Texts, in Eco-friendly Computing and Communication Systems, J. Mathew et al. (Eds.), Communications in Computer and Information Science Series, vol. 305, pp. 389-397, Springer Berlin Heidelberg, 2012.

 

  1. T. Chattopadhyay, U. Bhattacharya, B. B. Chaudhuri, On the enhancement and binarization of mobile captured vehicle identification number for an embedded solution, Proc. of Document Analysis Systems, pp. 235-239, IEEE Comp. Soc. Press, 2012.

 

  1. A. R. Chowdhury, U. Bhattacharya and S. K. Parui, Text detection of two major Indian scripts in natural scene images, Camera-Based Document Analysis and Recognition, Lecture Notes in Computer Science vol. 7139, pp. 42-57, 2012. [extended version of the next article]

 

  1. Aruni Roy Chowdhury, Ujjwal Bhattacharya and Swapan K. Parui, Text detection of two major Indian scripts in natural scene images, Proc. of 4th International Workshop on Camera-Based Document Analysis and Recognition (CBDAR 2011), pp.73-78, Beijing, China, September 2011.

 

  1. Sk. Mohiuddin, Ujjwal Bhattacharya and Swapan K. Parui, Unconstrained Bangla online handwriting recognition based on MLP and SVM, Proc. of The Joint Workshop on Multilingual OCR and Analytics for Noisy Unstructured Text Data, Article No. 16, ACM New York, NY, USA, 2011.

 

  1. T. Mondal, U. Bhattacharya, S. K. Parui, K. Das and D. Mandalapu, On-line handwriting recognition of Indian scripts - the first benchmark, Proc. of 12th Int. Conf. on Frontiers in Handwriting Recognition, pp. 200-205, IEEE Computer Society Press, 2010.

 

  1. G. Fink, S. Vajda, U. Bhattacharya, S. K. Parui and B. B. Chaudhuri, Online Bangla word recognition using sub-stroke level features and hidden Markov models, Proc. of 12th Int. Conf. on Frontiers in Handwriting Recognition, pp. 393-398, IEEE Computer Society Press, 2010.

 

  1. U. Bhattacharya, S. K. Parui and S. Mondal, Devanagari and Bangla Text Extraction from Natural Scene Images, in the Proceedings of 10th International Conference on Document Analysis and Recognition, pp. 171 - 175, IEEE Computer Society Press, 2009.

 

  1. T. Mondal, U. Bhattacharya, S. K. Parui, K. Das, V. Roy, Database generation and recognition of online handwritten Bangla characters in the Proceedings of the International Workshop on Multilingual OCR (MOCR), Article No. 9, ACM International Conference Proceeding Series, Barcelona, Spain , 2009.

 

  1. S. K. Parui, K. Guin, U. Bhattacharya and B. B. Chaudhuri, Online Handwritten Bangla Character Recognition Using HMM, Proceedings of 19th ICPR published by IEEE Computer Society Press, 2008.

 

  1. U. Bhattacharya, A. Nigam, Y. S. Rawat and S. K. Parui, An Analytic Scheme for Online Handwritten Bangla Cursive Word Recognition, in the Proceedings of the International Conference on Frontiers in Handwriting Recognition (ICFHR 2008), pp. 320 - 325, Montreal, Canada during 19-21 August, 2008.

 

  1. P. Sanyal, U. Bhattacharya and S. K. Bandyopadhyay, Analysis of SEM Images of Stomata of Different Tomato Cultivars Based on Morphological Features, Proceedings of the Second Asia International Conference on Modelling & Simulation, Kuala Lumpur, Malaysia, pp. 890- 894, 2008, IEEE Computer Society Press.

 

  1. U. Bhattacharya, S. K. Ghosh and S. K. Parui, An Improved Scheme for Off-line Recognition of Handwritten Bangla Characters Proceedings of the IISC Centenary Conference, Bangalore during 27-31 May, 2008.

 

  1. U. Bhattacharya, S. K. Ghosh and S. K. Parui, A Two Stage Recognition Scheme for Handwritten Tamil Characters, Proceedings of 9th ICDAR pp. 511-515, 2007, IEEE Press.

 

  1. P. Sanyal, U. Bhattacharya, S. K. Parui, S. K. Bandyopadhyay and S. Patel, Color Texture Analysis of Rice Leaves Diagnosing Deficiency in the Balance of Mineral Levels towards Improvement of Crop Productivity, Proceedings of the 10th International Conference on Information Technology (ICIT 2007), pp. 85-90, 2007, IEEE Computer Society Press.

 

  1. U. Bhattacharya, B. K. Gupta and S. K. Parui, Direction Code Based Features for Recognition of Online Handwritten Characters of Bangla, Proceedings of 9th ICDAR, pp. 58-62, 2007, IEEE Press.

 

  1. S. K. Parui, U. Bhattacharya, S. K. Ghosh, Recognition Of Handwritten Bangla Vowel Modifiers, Proceedings of the 6th International Conference on Advances in Pattern Recognition (ICAPR2007), pp. 129-134, 2007, World Scientific Publ.

 

  1. U. Bhattacharya, S. K. Parui, B. Shaw, A Hybrid Scheme for Recognition of Handwritten Bangla Basic Characters based on HMM and MLP classifiers, Proceedings of the 6th International Conference on Advances in Pattern Recognition (ICAPR2007), pp. 101-106, 2007, World Scientific Publ.

 

  1. U. Bhattacharya, B. Shaw, S. K. Parui, Analysis of Error Sources Towards improved Form Processing, Proceedings of the 9th International Conference on Information Technology (ICIT 2006), pp. 137-138, 2006, IEEE Computer Society Press.

 

  1. T. K. Bhowmick, S. K. Parui, U. Bhattacharya, B. Shaw, An HMM based Recognition Scheme for Handwritten Oriya Numerals, Proceedings of the 9th International Conference on Information Technology (ICIT 2006), pp. 105-110, 2006, IEEE Computer Society Press.

 

  1. U. Bhattacharya, M. Shridhar and S. K. Parui, On Recognition of Handwritten Bangla Characters, Proceedings of the 5th Indian Conference on Computer Vision, Graphics and Image Processing (ICVGIP), pp. 817-828, 2006, Springer-Verlag.

 

  1. P. Sanyal, U. Bhattacharya and S. K. Parui, Use of Color and Texture Features of Rice Leaves for Detection of Blast Disease, Proceedings of the 41st National Annual Convention (CSI 2006) of Computer Society of India, pp 23-26, 2006, Tata McGraw Hill Pub. Comp. Ltd.

 

  1. S. K. Parui, U. Bhattacharya, B. Shaw, K. Guin, A Hidden Markov Models for Recognition of Online Handwritten Bangla Numerals, Proceedings of the 41st National Annual Convention (CSI 2006) of Computer Society of India, pp 27-31, 2006, Tata McGraw Hill Pub. Comp. Ltd.

 

  1. U. Bhattacharya, B. B. Chaudhuri, R. Ghosh and M. Ghosh, Multistage Recognition of Handwritten Devanagari Numerals, Proceedings of Recent Advances in Soft Computing (RASC-2006), University of Canterbury, 2006.

 

  1. U. Bhattacharya, S. K. Parui and A. B. Roy, A Neuro-Genetic Approach for Segmentation of Color Textured Images, Proceedings of National Conference on Recent Trends in Information Systems (ReTIS-2006), pp. 41-44, 2006.

 

  1. U. Bhattacharya, S. K. Parui, B. Shaw and K. Bhattacharya, Neural Combination of ANN and HMM for Handwritten Devanagari Numeral Recognition, Proceedings of the 10th IWFHR, pp. 613-618, La Baule, France, 2006.

 

  1. U. Bhattacharya, B. Shaw and S. K. Parui, Analysis of Writer Idiosyncracies Towards Improved Performance of ISIFormReader, Proceedings of CSI EAIT 2006, pp. 333-336, 2006, Reed Elsevier India Pvt. Ltd.

 

  1. S. K. Parui, U. Bhattacharya, A. K. Datta and B. Shaw, A Database of Handwritten Bangla Vowel Modifiers and a Scheme for Their Detection and Recognition, Proc. of the 3rd Workshop on Computer Vision, Graphics and Image Processing (WCVGIP), pp. 204-209, 2006.

 

  1. S.K. Parui,U. Bhattacharya, B. Shaw and D. Poddar, A Novel Hidden Markov Model for Recognition of Handwritten Bangla Characters,  Proc. of the 3rd Workshop on Computer Vision, Graphics and Image Processing (WCVGIP), pp. 174-179, 2006.

 

  1. U. Bhattacharya and B. B. Chaudhuri, Processing Of Struck-out Handwriting, In Proc. of the 2nd Indian International Conference on Artificial Intelligence, pp. 1312-1321, 2005.

 

  1. U. Bhattacharya, S. K. Parui, M. Sridhar, and F. Kimura, Two-stage Recognition of Handwritten Bangla Alphanumeric Characters using Neural Classifiers, In Proc. of the 2nd Indian International Conference on Artificial Intelligence, pp. 1357-1376, 2005.

 

  1. U. Bhattacharya, B. B. Chaudhury, R. Ghosh and M. Ghosh, On Recognition of Handwritten Devanagari Numerals, In Proc. Of the Workshop on Learning Algorithms for Pattern Recognition, 2005, Australia.

 

  1. U. Bhattacharya, B. Shaw and S. K. Parui, ISIFormReader: A Robust Form Processing System presented in the 20th Indian Engineering Congress, 15-18 December, 2005.

 

  1. U. Bhattacharya and B. B. Chaudhuri, Databases for research on recognition of handwritten characters of Indian scripts, In Proc. of the 8th Int. Conf. on Document Analysis and Recognition (ICDAR), Seoul, Korea, vol. II, page: 789-793, 2005, IEEE Press.

 

  1. U. Bhattacharya and B. B. Chaudhuri, Fusion of combination rules of an MLP classifiers for improved recognition accuracy of handprinted Bangla numerals, In Proc. of the 8th Int. Conf. on Document Analysis and Recognition (ICDAR), Seoul, Korea, vol. I, page: 322-326, 2005, IEEE Press.

 

  1. U. Bhattacharya and B. Shaw, ISIFormReader: A Semi-automatic Form Processing System, presented in the Workshop OCR&DS -- 2005, Allahabad, 19-20 March, 2005.

 

  1. T. K. Bhowmick, U. Bhattacharya and S. K. Parui, Recognition of Bangla Handwritten Characters Using an MLP Classifier Based on Stroke Features, ICONIP 2004, LNCS 3316, (Eds. N. R. Pal et al.), pp. 814-819, 2004.

 

  1. U. Bhattacharya, S. Vajda, A. Mallick, B. B. Chaudhuri and A. Belaid, On the Choice of Training Set, Architectures and Combination Rule of Multiple MLP Classifiers for Multiresolution Recognition of Handwritten Characters, Proc. of the IWFHR-9, pp. 419-424, 2004, IEEE Computer Society Press.

 

  1. S. K. Parui, T. K. Bhowmik and U. Bhattacharya, A novel scheme for extraction of shape descriptions from handwritten Bangla characters, In Proc. Of National Workshop on Computer Vision Graphics and Image Processing (WCVGIP-2004), Gwalior (M.P.), India, pp. 1-4, 21-22 Feb., 2004.

 

  1. S. Bhattacharya, U. Bhattacharya and S. K. Parui, Chain code skeleton processing for handwritten character recognition, In Proc. Of National Workshop on Computer Vision Graphics and Image Processing (WCVGIP-2004), Gwalior (M.P.), India, pp. 14-17, 21-22 Feb., 2004.

 

  1. U. Bhattacharya, B.B. Chaudhuri, Databases for research on recognition of handwritten numerals of Indian scripts, In Proc. Of National Workshop on Computer Vision Graphics and Image Processing (WCVGIP-2004), Gwalior (M.P.), India, pp. 18-21, 21-22 Feb., 2004.

 

  1. U. Bhattacharya, B.B. Chaudhuri, A Majority Voting Scheme for Multiresolution Recognition of Handprinted Numerals, In Proc. of the 7th Int. Conf. on Document Analysis and Recognition (ICDAR), Edinburgh, Scotland, vol. I, pp. 16-20, 2003, IEEE Computer Society Press.

 

  1. U. Bhattacharya, T. K. Das and B. B. Chaudhuri, A cascaded scheme for recognition of handprinted numerals, Proceedings of the 3rd Indian Conference on Computer Vision, Graphics and Image Processing, Ahmedabad, India, 2002, pp. 137 -- 142.

 

  1. U. Bhattacharya, T. K. Das, A. Datta, S. K. Parui, and B. B. Chaudhuri, Recognition of handprinted Bangla numerals using neural network models, Advances in Soft Computing - AFSS 2002, Springer Verlag, Lecture Notes on Artificial Intelligence, Eds. N.R. Pal and M. Sugeno, LNAI 2275, pp. 228 - 235, 2002, Springer-Verlag.

 

  1. U. Bhattacharya, T. K. Das, A. Datta, S. K. Parui, and B. B. Chaudhuri, Self-organizing neural network-based system for recognition of handprinted Bangla numerals, Proceedings of XXXVI Annual Convention, Computer society of India, pp. C-92 -- C-96, 2001.

 

  1. U. Bhattacharya, V. Liebscher, A. Datta, S.K. Parui, K. Rodenacker and B. B. Chaudhuri, Shape extraction of volumetric images of filamentous bacteria using topology adaptive self organization, Proc. 15th International Conference on Pattern Recognition, pp. 291-294, 2000, IEEE Computer Society Press.

 

  1. U. Bhattacharya, A. Datta, S.K. Parui and B.B. Chaudhuri, Vector quantization of volumetric images of 3-D objects using topology adaptive self-organizing feature maps, in Advances in Pattern Recognition and Digital Techniques, Eds. N. R. Pal et al., pp. 377-381, 2000, Narosa Publishing House, New Delhi, ISBN 81-7319-347-9.

 

  1. U. Bhattacharya, B. B. Chaudhuri and S. K. Parui, An MLP-based texture segmentation technique which does not require a feature set, Proc. 13th Int. Conf. on Pattern Recognition, Vol.II, pp. 805-809, 1996, IEEE Computer Society Press.

 

  1. U. Bhattacharya and S.K. Parui, Self-adaptive learning rates in backpropagation algorithm, Pattern Recognition, Image Processing and Computer Vision : Recent Advances, Eds. P. P. Das and B. N. Chatterjee, pp. 124-129, 1995, Narosa Publishing House.

 

  1. U. Bhattacharya and S.K. Parui, Self-adaptive learning rates in backpropagation algorithm improve its function approximation performance, Proceedings of the IEEE International Conference on Neural Networks, pp. 2784-2788, IEEE Computer Society Press, 1995.

 

  1. U. Bhattacharya, G. S. Bhunia and S. K. Parui, Symmetry detection of a binary object using a probabilistic optimization technique, in Information Technology for Growth and Prosperity, Ed. S. Bandyopadhyay, pp. 51-54, 1994, Tata McGraw-Hill.

 

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