Computer Vision & Pattern Recognition Unit (CVPRU)
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Ujjwal Bhattacharya is a faculty
member of the Computer Vision and Pattern Recognition Unit of Indian
Statistical Institute, Kolkata, India. He completed his Bachelor of Science
(Hons. In Math.) Degree of Calcutta University from Presidency College,
Kolkata in 1986. He obtained Master of Science and Master of Philosophy both
in Pure Mathematics from Calcutta University in 1989 and 1991 respectively.
He also did his Post-graduate Diploma in Computer Applications in 1990. He
joined the Electronics and Communications Sciences Unit of Indian Statistical
Institute, Kolkata as a research scholar in 1991. Before joining in a
scientific position of the Statistics and Mathematics Unit of Indian
Statistical Institute in 1997, he worked for a short period in a project on
"Automatic Map Understanding" in the Computer Vision and Pattern
Recognition Unit of the same Institute. Finally, in 1999, he joined in his
current position. Mr. Bhattacharya is a recipient
of National Scholarship (1980, 1982) and ISCA Young Scientist Award (1995).
He is a member of the IEEE. The focus of his current research interest
is "Recognition of handwritten characters of Indian scripts".
He is the principal investigator of an ongoing ISI internal project entitled:
"Handwritten Character Recognition". Under his active leadership several large
and representative databases of
off-line handwritten characters/numerals of Indian scripts have been
recently developed. Also, a large image data of real-life forms has been
developed. Mr. Bhattacharya worked as a co-investigator in the Resource
Center (Bangla) project sponsored by the Ministry of Information Technology,
Govt. of India. Present research focus of Mr.
Bhattacharya is handwriting recognition of various Indic scripts and related applications
such as automatic form processing etc. Previously, Mr. Bhattacharya worked
the convergence issues of backpropagation learning algorithm and proposed
certain self-adaptive learning rates, which often improves the learning
performance of an MLP classifier in various real-life application problems
such as texture segmentation, analysis of remote sensing images, recognition
of handwritten characters etc. His other research interests include color
image analysis, bioinformatics etc. Till date, Mr. Bhattacharya has
visited several Institutes / Research Labs in India and abroad. The list
includes: (i) IUCAA, Pune, India, (ii) IBB, GSF, Munich, Germany, (iii) the Laboratory of DNA
Information Analysis of Human Genome Center, Institute
of Medical Science, University of Tokyo, Japan, (iv) the Department of Computational Science
and Engineering, Nagoya University, Japan, (v) Hitachi Central research Laboratory,
Kokubunji, Tokyo, Japan, (vi) Computer
Science Department, Bristol University, UK, (vii) Department of Computer
Science, University of Essex, UK and (viii) delivered a lecture entitled on
"Off-line Handwritten Character Recognition of Major Indic scripts -- The
State of The Art" at the University of Kent, Canterbury, UK. Mr. Bhattacharya published several
articles in International journals and conference proceedings. Recently,
he has received a "Certificate of Special Mention" from Computer
Society of India for the paper entitled "Analysis of Writer
Idiosyncracies Towards Improved Performance of ISIFormReader" co-authored by B. Shaw, S. K. Parui and presented
at EAIT-2006, held at Kolkata and another best paper award ("Amiya K. Pujari Award") for the work "An HMM Based Recognition Scheme for Handwritten Oriya Numerals" co-authored by T. K. Bhowmick, S. K. Parui, B. Shaw and presented at the
International Conference on Information Technology (ICIT), 2006 at
Hobbies of Mr. Ujjwal Bhattacharya
include teaching Mathematics including Computer Science and providing
training on programming in C language. He has supervised the master's thesis
of a number of students from various Institutions/Universities/colleges of
India.
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