Ujjwal Bhattacharya

Orcid: 0000-0002-8546-6453

Affiliations:
  • Indian Statistical Institute, India


According to our database1, Ujjwal Bhattacharya authored at least 99 papers between 1995 and 2024.

Collaborative distances:
  • Dijkstra number2 of four.
  • Erdős number3 of four.

Timeline

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Bibliography

2024
Fisheye Camera and Ultrasonic Sensor Fusion For Near-Field Obstacle Perception in Bird's-Eye-View.
CoRR, 2024

YOLO Assisted A* Algorithm for Robust Line Segmentation of Degraded Document Images.
Proceedings of the Document Analysis and Recognition - ICDAR 2024 - 18th International Conference, Athens, Greece, August 30, 2024

2023
Weakly supervised deep metric learning on discrete metric spaces for privacy-preserved clustering.
Inf. Process. Manag., 2023

UnShadowNet: Illumination Critic Guided Contrastive Learning for Shadow Removal.
IEEE Access, 2023

Deep Classification of Mammographic Breast Density: DCBARNet.
Proceedings of the 38th International Conference on Image and Vision Computing New Zealand, 2023

Revisiting Modality Imbalance In Multimodal Pedestrian Detection.
Proceedings of the IEEE International Conference on Image Processing, 2023

2022
A Deep OCR for Degraded Bangla Documents.
ACM Trans. Asian Low Resour. Lang. Inf. Process., September, 2022

Spatio-Contextual Deep Network-Based Multimodal Pedestrian Detection for Autonomous Driving.
IEEE Trans. Intell. Transp. Syst., 2022

Privacy-aware supervised classification: An informative subspace based multi-objective approach.
Pattern Recognit., 2022

Deep Multi-Task Networks For Occluded Pedestrian Pose Estimation.
CoRR, 2022

UnShadowNet: Illumination Critic Guided Contrastive Learning For Shadow Removal.
CoRR, 2022

A Novel CNN-Based Approach for Distinguishing Between COVID and Common Pneumonia.
Proceedings of the Image and Vision Computing - 37th International Conference, 2022

Low Resource Degraded Quality Document Image Binarization - Domain Adaptation is the Way.
Proceedings of the Thirteenth Indian Conference on Computer Vision, 2022

2021
Listen To The Pixels.
Proceedings of the 2021 IEEE International Conference on Image Processing, 2021

Approximate Nearest Neighbour Search on Privacy-aware Encoding of User Locations to Identify Susceptible Infections in Simulated Epidemics.
Proceedings of the FIRE 2021: Forum for Information Retrieval Evaluation, Virtual Event, India, December 13, 2021

AudViSum: Self-Supervised Deep Reinforcement Learning for Diverse Audio-Visual Summary Generation.
Proceedings of the 32nd British Machine Vision Conference 2021, 2021

2020
An End-to-End Framework for Unsupervised Pose Estimation of Occluded Pedestrians.
CoRR, 2020

Scale-Invariant Multi-Oriented Text Detection in Wild Scene Images.
CoRR, 2020

CardioGAN: An Attention-based Generative Adversarial Network for Generation of Electrocardiograms.
Proceedings of the 25th International Conference on Pattern Recognition, 2020

Stratified Multi-Task Learning for Robust Spotting of Scene Texts.
Proceedings of the 25th International Conference on Pattern Recognition, 2020

DenseRecognition of Spoken Languages.
Proceedings of the 25th International Conference on Pattern Recognition, 2020

Scale-Invariant Multi-Oriented Text Detection in Wild Scene Image.
Proceedings of the IEEE International Conference on Image Processing, 2020

An End-To-End Framework For Pose Estimation Of Occluded Pedestrians.
Proceedings of the IEEE International Conference on Image Processing, 2020

2019
Privacy Preserving Approximate K-means Clustering.
Proceedings of the 28th ACM International Conference on Information and Knowledge Management, 2019

ClueNet : A Deep Framework for Occluded Pedestrian Pose Estimation.
Proceedings of the 30th British Machine Vision Conference 2019, 2019

2018
An HMM framework based on spherical-linear features for online cursive handwriting recognition.
Inf. Sci., 2018

Document Image Classification with Intra-Domain Transfer Learning and Stacked Generalization of Deep Convolutional Neural Networks.
CoRR, 2018

Seek and You Will Find: A New Optimized Framework for Efficient Detection of Pedestrian.
Proceedings of the ICVGIP 2018: 11th Indian Conference on Computer Vision, 2018

Document Image Classification with Intra-Domain Transfer Learning and Stacked Generalization of Deep Convolutional Neural Networks.
Proceedings of the 24th International Conference on Pattern Recognition, 2018

A Hybrid Deep Architecture for Robust Recognition of Text Lines of Degraded Printed Documents.
Proceedings of the 24th International Conference on Pattern Recognition, 2018

An Efficient Feature Vector for Segmentation-Free Recognition of Online Cursive Handwriting Based on a Hybrid Deep Neural Network.
Proceedings of the 13th IAPR International Workshop on Document Analysis Systems, 2018

Does Deeper Network Lead to Better Accuracy: A Case Study on Handwritten Devanagari Characters.
Proceedings of the 13th IAPR International Workshop on Document Analysis Systems, 2018

2017
A sigma-lognormal model-based approach to generating large synthetic online handwriting sample databases.
Int. J. Document Anal. Recognit., 2017

Offline Handwritten Malayalam Word Recognition Using a Deep Architecture.
Proceedings of the Soft Computing for Problem Solving, 2017

A Hybrid Model for End to End Online Handwriting Recognition.
Proceedings of the 14th IAPR International Conference on Document Analysis and Recognition, 2017

2016
Multilingual scene character recognition with co-occurrence of histogram of oriented gradients.
Pattern Recognit., 2016

A Hybrid Deep Architecture for Face Recognition in Real-Life Scenario.
Proceedings of the Computer Vision, Graphics, and Image Processing, 2016

Bangla online handwriting recognition using recurrent neural network architecture.
Proceedings of the Tenth Indian Conference on Computer Vision, 2016

Generalized stacking of layerwise-trained Deep Convolutional Neural Networks for document image classification.
Proceedings of the 23rd International Conference on Pattern Recognition, 2016

An End-to-End System for Bangla Online Handwriting Recognition.
Proceedings of the 15th International Conference on Frontiers in Handwriting Recognition, 2016

A Robust Scheme for Extraction of Text Lines from Handwritten Documents.
Proceedings of International Conference on Computer Vision and Image Processing, 2016

2015
Sentiment analysis using cosine similarity measure.
Proceedings of the 2nd IEEE International Conference on Recent Trends in Information Systems, 2015

Script independent online handwriting recognition.
Proceedings of the 13th International Conference on Document Analysis and Recognition, 2015

CNN based common approach to handwritten character recognition of multiple scripts.
Proceedings of the 13th International Conference on Document Analysis and Recognition, 2015

An efficient line segmentation approach for handwritten Bangla document image.
Proceedings of the Eighth International Conference on Advances in Pattern Recognition, 2015

Offline handwritten Devanagari word recognition: Information fusion at feature and classifier levels.
Proceedings of the 3rd IAPR Asian Conference on Pattern Recognition, 2015

2014
Smoothing of HMM parameters for efficient recognition of online handwriting.
Pattern Recognit., 2014

A Global-to-Local Approach to Binarization of Degraded Document Images.
Proceedings of the 22nd International Conference on Pattern Recognition, 2014

Combination of Features for Efficient Recognition of Offline Handwritten Devanagari Words.
Proceedings of the 14th International Conference on Frontiers in Handwriting Recognition, 2014

Stroke Level User-Adaptation for Stroke Order Free Online Handwriting Recognition.
Proceedings of the 14th International Conference on Frontiers in Handwriting Recognition, 2014

A Machine Learning Approach to Detection of Core Region of Online Handwritten Bangla Word Samples.
Proceedings of the 14th International Conference on Frontiers in Handwriting Recognition, 2014

Automatic Detection of Handwritten Texts from Video Frames of Lectures.
Proceedings of the 14th International Conference on Frontiers in Handwriting Recognition, 2014

Holistic Recognition of Online Handwritten Words Based on an Ensemble of SVM Classifiers.
Proceedings of the 11th IAPR International Workshop on Document Analysis Systems, 2014

2013
Enhancement of camera captured text images with specular reflection.
Proceedings of the Fourth National Conference on Computer Vision, 2013

ISIgraphy: A tool for online handwriting sample database generation.
Proceedings of the Fourth National Conference on Computer Vision, 2013

Bag-of-features HMMs for segmentation-free Bangla word spotting.
Proceedings of the 4th International Workshop on Multilingual OCR, 2013

Recognition of offline handwritten numerals using an ensemble of MLPs combined by Adaboost.
Proceedings of the 4th International Workshop on Multilingual OCR, 2013

Levenshtein distance metric based holistic handwritten word recognition.
Proceedings of the 4th International Workshop on Multilingual OCR, 2013

Online Handwriting Recognition Using Levenshtein Distance Metric.
Proceedings of the 12th International Conference on Document Analysis and Recognition, 2013

A Robust Approach to Extraction of Texts from Camera Captured Images.
Proceedings of the Camera-Based Document Analysis and Recognition, 2013

2012
Offline recognition of handwritten Bangla characters: an efficient two-stage approach.
Pattern Anal. Appl., 2012

Lightweight user-adaptive handwriting recognizer for resource constrained handheld devices.
Proceedings of the Proceeding of the workshop on Document Analysis and Recognition, 2012

Segmentation of Bangla words in scene images.
Proceedings of the Eighth Indian Conference on Vision, Graphics and Image Processing, 2012

Scene text detection using sparse stroke information and MLP.
Proceedings of the 21st International Conference on Pattern Recognition, 2012

Building a Personal Handwriting Recognizer on an Android Device.
Proceedings of the 2012 International Conference on Frontiers in Handwriting Recognition, 2012

HMM Based Online Handwritten Bangla Character Recognition Using Dirichlet Distributions.
Proceedings of the 2012 International Conference on Frontiers in Handwriting Recognition, 2012

A Semi-automatic Annotation Scheme for Bangla Online Mixed Cursive Handwriting Samples.
Proceedings of the 2012 International Conference on Frontiers in Handwriting Recognition, 2012

On the Enhancement and Binarization of Mobile Captured Vehicle Identification Number for an Embedded Solution.
Proceedings of the 10th IAPR International Workshop on Document Analysis Systems, 2012

2011
Text Detection of Two Major Indian Scripts in Natural Scene Images.
Proceedings of the Camera-Based Document Analysis and Recognition, 2011

2010
On-line Handwriting Recognition of Indian Scripts - The First Benchmark.
Proceedings of the International Conference on Frontiers in Handwriting Recognition, 2010

Online Bangla Word Recognition Using Sub-Stroke Level Features and Hidden Markov Models.
Proceedings of the International Conference on Frontiers in Handwriting Recognition, 2010

2009
Handwritten Numeral Databases of Indian Scripts and Multistage Recognition of Mixed Numerals.
IEEE Trans. Pattern Anal. Mach. Intell., 2009

Database generation and recognition of online handwritten Bangla characters.
Proceedings of the International Workshop on Multilingual OCR, 2009

Devanagari and Bangla Text Extraction from Natural Scene Images.
Proceedings of the 10th International Conference on Document Analysis and Recognition, 2009

2008
Online handwritten Bangla character recognition using HMM.
Proceedings of the 19th International Conference on Pattern Recognition (ICPR 2008), 2008

Analysis of SEM Images of Stomata of Different Tomato Cultivars Based on Morphological Features.
Proceedings of the Second Asia International Conference on Modelling and Simulation, 2008

2007
A Two Stage Recognition Scheme for Handwritten Tamil Characters.
Proceedings of the 9th International Conference on Document Analysis and Recognition (ICDAR 2007), 2007

Direction Code Based Features for Recognition of Online Handwritten Characters of Bangla.
Proceedings of the 9th International Conference on Document Analysis and Recognition (ICDAR 2007), 2007

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, 2007

2006
On Recognition of Handwritten Bangla Characters.
Proceedings of the Computer Vision, Graphics and Image Processing, 5th Indian Conference, 2006

Summarization of JBIG2 Compressed Indian Language Textual Images.
Proceedings of the 18th International Conference on Pattern Recognition (ICPR 2006), 2006

An HMM Based Recognition Scheme for Handwritten Oriya Numerals.
Proceedings of the 9th International Conference in Information Technology, 2006

Analysis of Error Sources Towards Improved Form Processing.
Proceedings of the 9th International Conference in Information Technology, 2006

2005
Two-stage Recognition of Handwritten Bangla Alphanumeric Characters using Neural Classifiers.
Proceedings of the 2nd Indian International Conference on Artificial Intelligence, 2005

Processing Of Struck-out Handwriting.
Proceedings of the 2nd Indian International Conference on Artificial Intelligence, 2005

Databases for Research on Recognition of Handwritten Characters of Indian Scripts.
Proceedings of the Eighth International Conference on Document Analysis and Recognition (ICDAR 2005), 29 August, 2005

Fusion of Combination Rules of an Ensemble of MLP Classifiers for Improved Recognition Accuracy of Handprinted Bangla Numerals.
Proceedings of the Eighth International Conference on Document Analysis and Recognition (ICDAR 2005), 29 August, 2005

2004
Recognition of Bangla Handwritten Characters Using an MLP Classifier Based on Stroke Features.
Proceedings of the Neural Information Processing, 11th International Conference, 2004

On the choice of training set, architecture and combination rule of multiple MLP classifiers for multiresolution recognition of handwritten characters.
Proceedings of the Ninth International Workshop on Frontiers in Handwriting Recognition, 2004

2003
A Majority Voting Scheme for Multiresolution Recognition of Handprinted Numerals.
Proceedings of the 7th International Conference on Document Analysis and Recognition (ICDAR 2003), 2003

2002
A Hybrid Scheme for Handprinted Numeral Recognition Based on a Self-Organizing Network and MLP Classifiers.
Int. J. Pattern Recognit. Artif. Intell., 2002

A Cascaded Scheme for Recognition of Handprinted Numerals.
Proceedings of the ICVGIP 2002, 2002

Recognition of Handprinted Bangla Numerals Using Neural Network Models.
Proceedings of the Advances in Soft Computing, 2002

2000
Efficient training and improved performance of multilayer perceptron in pattern classification.
Neurocomputing, 2000

Shape Extraction of Volumetric Images of Filamentous Bacteria Using Topology Adaptive Self Organization.
Proceedings of the 15th International Conference on Pattern Recognition, 2000

1997
An MLP-based texture segmentation method without selecting a feature set.
Image Vis. Comput., 1997

1996
An MLP-based texture segmentation technique which does not require a feature set.
Proceedings of the 13th International Conference on Pattern Recognition, 1996

1995
On the rate of convergence of perceptron learning.
Pattern Recognit. Lett., 1995

Self-adaptive learning rates in backpropagation algorithm improve its function approximation performance.
Proceedings of International Conference on Neural Networks (ICNN'95), Perth, WA, Australia, November 27, 1995


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