Ujjwal Bhattacharya

108 papers A 15B 30Misc 3Journal 27Unranked 33
YearRankTypeTitle / Venue / Authors
2026 J jnl
AdURA-Net: Adaptive Uncertainty and Region-Aware Network.
CoRR
Antik Aich Roy, Ujjwal Bhattacharya
2025 J jnl
Deep determination of cardiac condition from phonocardiograms.
Neural Comput. Appl.
Shubham Basak, Ujjwal Bhattacharya
2025 A conf
Reflective Teacher: Semi-Supervised Multimodal 3D Object Detection in Bird's-Eye-View via Uncertainty Measure.
WACV
Saheli Hazra, Sudip Das, Rohit Choudhary, Arindam Das, Ganesh Sistu, Ciarán Eising, Ujjwal Bhattacharya
2024 Misc conf
Demystifying Galaxy Classification: An Elegant and Powerful Hybrid Approach.
IVCNZ
Ankita Sarkar, Sarbani Palit, Ujjwal Bhattacharya
2024 J jnl
Fisheye Camera and Ultrasonic Sensor Fusion For Near-Field Obstacle Perception in Bird's-Eye-View.
CoRR
Arindam Das, Sudarshan Paul, Niko Scholz, Akhilesh Kumar Malviya, Ganesh Sistu, Ujjwal Bhattacharya, Ciarán Eising
2024 A conf
MMPrune4U: Regularizing Multimodal Feature Distortion in Weight Pruning for Deep Neural Network Compression.
BMVC
Sudip Das, Kaixin Xu, Nushrat Hussain, Ziyuan Zhao, Arindam Das, Weisi Lin, Ujjwal Bhattacharya
2024 J jnl
Reflective Teacher: Semi-Supervised Multimodal 3D Object Detection in Bird's-Eye-View via Uncertainty Measure.
CoRR
Saheli Hazra, Sudip Das, Rohit Choudhary, Arindam Das, Ganesh Sistu, Ciaran Eising, Ujjwal Bhattacharya
2024 — conf
YOLO Assisted A* Algorithm for Robust Line Segmentation of Degraded Document Images.
ICDAR (4)
Ahana Kundu, Ujjwal Bhattacharya
2023 Misc conf
Deep Classification of Mammographic Breast Density: DCBARNet.
IVCNZ
Debapriya Chakraborty, Sarbani Palit, Ujjwal Bhattacharya
2023 B conf
Revisiting Modality Imbalance In Multimodal Pedestrian Detection.
ICIP
Arindam Das, Sudip Das, Ganesh Sistu, Jonathan Horgan, Ujjwal Bhattacharya, Edward Jones, Martin Glavin, Ciarán Eising
2023 J jnl
Revisiting Modality Imbalance In Multimodal Pedestrian Detection.
CoRR
Arindam Das, Sudip Das, Ganesh Sistu, Jonathan Horgan, Ujjwal Bhattacharya, Edward Jones, Martin Glavin, Ciarán Eising
2023 J jnl
UnShadowNet: Illumination Critic Guided Contrastive Learning for Shadow Removal.
IEEE Access
Subhrajyoti Dasgupta, Arindam Das, Senthil Kumar Yogamani, Sudip Das, Ciarán Eising, Andrei Bursuc, Ujjwal Bhattacharya
2023 J jnl
Weakly supervised deep metric learning on discrete metric spaces for privacy-preserved clustering.
Inf. Process. Manag.
Chandan Biswas, Debasis Ganguly, Dwaipayan Roy, Ujjwal Bhattacharya
2022 J jnl
A Deep OCR for Degraded Bangla Documents.
ACM Trans. Asian Low Resour. Lang. Inf. Process.
Ayan Chaudhury, Partha Sarathi Mukherjee, Sudip Das, Chandan Biswas, Ujjwal Bhattacharya
2022 Misc conf
A Novel CNN-Based Approach for Distinguishing Between COVID and Common Pneumonia.
IVCNZ
Somrita Bakshi, Sarbani Palit, Ujjwal Bhattacharya, Kimia Gholami, Nushrat Hussain, Debasis Mitra
2022 J jnl
Deep Multi-Task Networks For Occluded Pedestrian Pose Estimation.
CoRR
Arindam Das, Sudip Das, Ganesh Sistu, Jonathan Horgan, Ujjwal Bhattacharya, Edward Jones, Martin Glavin, Ciarán Eising
2022 — conf
Low Resource Degraded Quality Document Image Binarization - Domain Adaptation is the Way.
ICVGIP
Ahana Kundu, Ujjwal Bhattacharya
2022 J jnl
Privacy-aware supervised classification: An informative subspace based multi-objective approach.
Pattern Recognit.
Chandan Biswas, Debasis Ganguly, Partha Sarathi Mukherjee, Ujjwal Bhattacharya, Yufang Hou
2022 J jnl
Spatio-Contextual Deep Network-Based Multimodal Pedestrian Detection for Autonomous Driving.
IEEE Trans. Intell. Transp. Syst.
Kinjal Dasgupta, Arindam Das, Sudip Das, Ujjwal Bhattacharya, Senthil Kumar Yogamani
2022 J jnl
UnShadowNet: Illumination Critic Guided Contrastive Learning For Shadow Removal.
CoRR
Subhrajyoti Dasgupta, Arindam Das, Sudip Das, Andrei Bursuc, Ujjwal Bhattacharya, Senthil Kumar Yogamani
2021 — conf
Approximate Nearest Neighbour Search on Privacy-aware Encoding of User Locations to Identify Susceptible Infections in Simulated Epidemics.
FIRE
Chandan Biswas, Debasis Ganguly, Ujjwal Bhattacharya
2021 A conf
AudViSum: Self-Supervised Deep Reinforcement Learning for Diverse Audio-Visual Summary Generation.
BMVC
Sanjoy Chowdhury, Aditya Patra, Subhrajyoti Dasgupta, Ujjwal Bhattacharya
2021 B conf
Listen To The Pixels.
ICIP
Sanjoy Chowdhury, Subhrajyoti Dasgupta, Sudip Das, Ujjwal Bhattacharya
2021 J jnl
Spatio-Contextual Deep Network Based Multimodal Pedestrian Detection For Autonomous Driving.
CoRR
Kinjal Dasgupta, Arindam Das, Sudip Das, Ujjwal Bhattacharya, Senthil Kumar Yogamani
2020 B conf
An End-To-End Framework For Pose Estimation Of Occluded Pedestrians.
ICIP
Sudip Das, Perla Sai Raj Kishore, Ujjwal Bhattacharya
2020 J jnl
An End-to-End Framework for Unsupervised Pose Estimation of Occluded Pedestrians.
CoRR
Sudip Das, Perla Sai Raj Kishore, Ujjwal Bhattacharya
2020 B conf
CardioGAN: An Attention-based Generative Adversarial Network for Generation of Electrocardiograms.
ICPR
Subhrajyoti Dasgupta, Sudip Das, Ujjwal Bhattacharya
2020 B conf
DenseRecognition of Spoken Languages.
ICPR
Jaybrata Chakraborty, Bappaditya Chakraborty, Ujjwal Bhattacharya
2020 B conf
Scale-Invariant Multi-Oriented Text Detection in Wild Scene Image.
ICIP
Kinjal Dasgupta, Sudip Das, Ujjwal Bhattacharya
2020 J jnl
Scale-Invariant Multi-Oriented Text Detection in Wild Scene Images.
CoRR
Kinjal Dasgupta, Sudip Das, Ujjwal Bhattacharya
2020 B conf
Stratified Multi-Task Learning for Robust Spotting of Scene Texts.
ICPR
Kinjal Dasgupta, Sudip Das, Ujjwal Bhattacharya
2019 A conf
ClueNet : A Deep Framework for Occluded Pedestrian Pose Estimation.
BMVC
Perla Sai Raj Kishore, Sudip Das, Partha Sarathi Mukherjee, Ujjwal Bhattacharya
2019 A conf
Privacy Preserving Approximate K-means Clustering.
CIKM
Chandan Biswas, Debasis Ganguly, Dwaipayan Roy, Ujjwal Bhattacharya
2019 J jnl
Seek and You Will Find: A New Optimized Framework for Efficient Detection of Pedestrian.
CoRR
Sudip Das, Partha Sarathi Mukherjee, Ujjwal Bhattacharya
2018 B conf
A Hybrid Deep Architecture for Robust Recognition of Text Lines of Degraded Printed Documents.
ICPR
Chandan Biswas, Partha Sarathi Mukherjee, Koyel Ghosh, Ujjwal Bhattacharya, Swapan K. Parui
2018 B conf
An Efficient Feature Vector for Segmentation-Free Recognition of Online Cursive Handwriting Based on a Hybrid Deep Neural Network.
DAS
Partha Sarathi Mukherjee, Ujjwal Bhattacharya, Swapan Kumar Parui
2018 J jnl
An HMM framework based on spherical-linear features for online cursive handwriting recognition.
Inf. Sci.
Oendrila Samanta, Anandarup Roy, Swapan K. Parui, Ujjwal Bhattacharya
2018 B conf
Document Image Classification with Intra-Domain Transfer Learning and Stacked Generalization of Deep Convolutional Neural Networks.
ICPR
Arindam Das, Saikat Roy, Ujjwal Bhattacharya, Swapan K. Parui
2018 J jnl
Document Image Classification with Intra-Domain Transfer Learning and Stacked Generalization of Deep Convolutional Neural Networks.
CoRR
Arindam Das, Saikat Roy, Ujjwal Bhattacharya
2018 B conf
Does Deeper Network Lead to Better Accuracy: A Case Study on Handwritten Devanagari Characters.
DAS
Bappaditya Chakraborty, Bikash Shaw, Jayanta Aich, Ujjwal Bhattacharya, Swapan Kumar Parui
2018 — conf
Seek and You Will Find: A New Optimized Framework for Efficient Detection of Pedestrian.
ICVGIP
Sudip Das, Partha Sarathi Mukherjee, Ujjwal Bhattacharya
2017 A conf
A Hybrid Model for End to End Online Handwriting Recognition.
ICDAR
Partha Sarathi Mukherjee, Bappaditya Chakraborty, Ujjwal Bhattacharya, Swapan Kumar Parui
2017 J jnl
A sigma-lognormal model-based approach to generating large synthetic online handwriting sample databases.
Int. J. Document Anal. Recognit.
Ujjwal Bhattacharya, Réjean Plamondon, Souvik Dutta Chowdhury, Pankaj Goyal, Swapan K. Parui
2017 — conf
Offline Handwritten Malayalam Word Recognition Using a Deep Architecture.
SocProS (1)
Jino P. J, Kannan Balakrishnan, Ujjwal Bhattacharya
2016 — conf
A Hybrid Deep Architecture for Face Recognition in Real-Life Scenario.
ICVGIP Workshops
Amartya Sanyal, Ujjwal Bhattacharya, Swapan K. Parui
2016 — conf
A Robust Scheme for Extraction of Text Lines from Handwritten Documents.
CVIP (2)
Barun Biswas, Ujjwal Bhattacharya, Bidyut B. Chaudhuri
2016 B conf
An End-to-End System for Bangla Online Handwriting Recognition.
ICFHR
Soumik Bhattacharya, Durjoy Sen Maitra, Ujjwal Bhattacharya, Swapan K. Parui
2016 — conf
Bangla online handwriting recognition using recurrent neural network architecture.
ICVGIP
Bappaditya Chakraborty, Partha Sarathi Mukherjee, Ujjwal Bhattacharya
2016 B conf
Generalized stacking of layerwise-trained Deep Convolutional Neural Networks for document image classification.
ICPR
Saikat Roy, Arindam Das, Ujjwal Bhattacharya
2016 J jnl
Multilingual scene character recognition with co-occurrence of histogram of oriented gradients.
Pattern Recognit.
Shangxuan Tian, Ujjwal Bhattacharya, Shijian Lu, Bolan Su, Qingqing Wang, Xiaohua Wei, Yue Lu, Chew Lim Tan
2015 — conf
An efficient line segmentation approach for handwritten Bangla document image.
ICAPR
Koustav Mullick, Sudipto Banerjee, Ujjwal Bhattacharya
2015 A conf
CNN based common approach to handwritten character recognition of multiple scripts.
ICDAR
Durjoy Sen Maitra, Ujjwal Bhattacharya, Swapan K. Parui
2015 — conf
Offline handwritten Devanagari word recognition: Information fusion at feature and classifier levels.
ACPR
Bikash Shaw, Ujjwal Bhattacharya, Swapan Kumar Parui
2015 A conf
Script independent online handwriting recognition.
ICDAR
Oendrila Samanta, Anandarup Roy, Ujjwal Bhattacharya, Swapan K. Parui
2015 — conf
Sentiment analysis using cosine similarity measure.
ReTIS
Saprativa Bhattacharjee, Anirban Das, Ujjwal Bhattacharya, Swapan K. Parui, Sudipta Roy
2014 B conf
A Global-to-Local Approach to Binarization of Degraded Document Images.
ICPR
Barun Biswas, Ujjwal Bhattacharya, Bidyut B. Chaudhuri
2014 B conf
A Machine Learning Approach to Detection of Core Region of Online Handwritten Bangla Word Samples.
ICFHR
S. Baral, Soumik Bhattacharya, Anirban Chakraborty, Ujjwal Bhattacharya, Swapan K. Parui
2014 B conf
Automatic Detection of Handwritten Texts from Video Frames of Lectures.
ICFHR
Purnendu Banerjee, Ujjwal Bhattacharya, Bidyut B. Chaudhuri
2014 B conf
Combination of Features for Efficient Recognition of Offline Handwritten Devanagari Words.
ICFHR
Bikash Shaw, Ujjwal Bhattacharya, Swapan K. Parui
2014 B conf
Holistic Recognition of Online Handwritten Words Based on an Ensemble of SVM Classifiers.
Document Analysis Systems
A. Srimany, S. Dutta Chowdhury, Ujjwal Bhattacharya, Swapan K. Parui
2014 J jnl
Smoothing of HMM parameters for efficient recognition of online handwriting.
Pattern Recognit.
Oendrila Samanta, Ujjwal Bhattacharya, Swapan K. Parui
2014 B conf
Stroke Level User-Adaptation for Stroke Order Free Online Handwriting Recognition.
ICFHR
Debarshi Dutta, Aruni Roy Chowdhury, Ujjwal Bhattacharya, Swapan K. Parui
2013 — conf
A Robust Approach to Extraction of Texts from Camera Captured Images.
CBDAR
Sudipto Banerjee, Koustav Mullick, Ujjwal Bhattacharya
2013 — conf
Bag-of-features HMMs for segmentation-free Bangla word spotting.
MOCR@ICDAR
Leonard Rothacker, Gernot A. Fink, P. Banerjee, Ujjwal Bhattacharya, B. B. Chaudhuri
2013 — conf
Enhancement of camera captured text images with specular reflection.
NCVPRIPG
Aishwarya Visvanathan, Tanushyam Chattopadhyay, Ujjwal Bhattacharya
2013 — conf
ISIgraphy: A tool for online handwriting sample database generation.
NCVPRIPG
Arindam Das, Ujjwal Bhattacharya
2013 — conf
Levenshtein distance metric based holistic handwritten word recognition.
MOCR@ICDAR
Souvik Dutta Chowdhury, Ujjwal Bhattacharya, Swapan K. Parui
2013 A conf
Online Handwriting Recognition Using Levenshtein Distance Metric.
ICDAR
S. Dutta Chowdhury, Ujjwal Bhattacharya, Swapan K. Parui
2013 — conf
Recognition of offline handwritten numerals using an ensemble of MLPs combined by Adaboost.
MOCR@ICDAR
Tarun Jindal, Ujjwal Bhattacharya
2012 B conf
A Semi-automatic Annotation Scheme for Bangla Online Mixed Cursive Handwriting Samples.
ICFHR
Ujjwal Bhattacharya, R. Banerjee, S. Baral, R. De, Swapan K. Parui
2012 B conf
Building a Personal Handwriting Recognizer on an Android Device.
ICFHR
Debarshi Dutta, Aruni Roy Chowdhury, Ujjwal Bhattacharya, Swapan K. Parui
2012 B conf
HMM Based Online Handwritten Bangla Character Recognition Using Dirichlet Distributions.
ICFHR
Chandan Biswas, Ujjwal Bhattacharya, Swapan K. Parui
2012 — conf
Lightweight user-adaptive handwriting recognizer for resource constrained handheld devices.
DAR@ICVGIP
Debarshi Dutta, Aruni Roy Chowdhury, Ujjwal Bhattacharya, Swapan K. Parui
2012 J jnl
Offline recognition of handwritten Bangla characters: an efficient two-stage approach.
Pattern Anal. Appl.
Ujjwal Bhattacharya, Malayappan Shridhar, Swapan K. Parui, P. K. Sen, B. B. Chaudhuri
2012 B conf
On the Enhancement and Binarization of Mobile Captured Vehicle Identification Number for an Embedded Solution.
Document Analysis Systems
Tanushyam Chattopadhyay, Ujjwal Bhattacharya, Bidyut B. Chaudhuri
2012 B conf
Scene text detection using sparse stroke information and MLP.
ICPR
Aruni Roy Chowdhury, Ujjwal Bhattacharya, Swapan K. Parui
2012 — conf
Segmentation of Bangla words in scene images.
ICVGIP
Prakriti Banik, Ujjwal Bhattacharya, Swapan K. Parui
2011 — conf
Text Detection of Two Major Indian Scripts in Natural Scene Images.
CBDAR
Aruni Roy Chowdhury, Ujjwal Bhattacharya, Swapan K. Parui
2010 B conf
On-line Handwriting Recognition of Indian Scripts - The First Benchmark.
ICFHR
T. Mondal, Ujjwal Bhattacharya, Swapan K. Parui, K. Das, D. Mandalapu
2010 B conf
Online Bangla Word Recognition Using Sub-Stroke Level Features and Hidden Markov Models.
ICFHR
Gernot A. Fink, Szilárd Vajda, Ujjwal Bhattacharya, Swapan K. Parui, Bidyut B. Chaudhuri
2009 — conf
Database generation and recognition of online handwritten Bangla characters.
MOCR@ICDAR
T. Mondal, Ujjwal Bhattacharya, Swapan K. Parui, K. Das, V. Roy
2009 A conf
Devanagari and Bangla Text Extraction from Natural Scene Images.
ICDAR
Ujjwal Bhattacharya, Swapan K. Parui, Srikanta Mondal
2009 J jnl
Handwritten Numeral Databases of Indian Scripts and Multistage Recognition of Mixed Numerals.
IEEE Trans. Pattern Anal. Mach. Intell.
Ujjwal Bhattacharya, Bidyut Baran Chaudhuri
2008 — conf
Analysis of SEM Images of Stomata of Different Tomato Cultivars Based on Morphological Features.
Asia International Conference on Modelling and Simulation
Pritimoy Sanyal, Ujjwal Bhattacharya, Samir Kumar Bandyopadhyay
2008 B conf
Online handwritten Bangla character recognition using HMM.
ICPR
Swapan K. Parui, Koushik Guin, Ujjwal Bhattacharya, B. B. Chaudhuri
2007 A conf
A Two Stage Recognition Scheme for Handwritten Tamil Characters.
ICDAR
Ujjwal Bhattacharya, S. K. Ghosh, Swapan K. Parui
2007 — conf
Color Texture Analysis of Rice Leaves Diagnosing Deficiency in the Balance of Mineral Levels towards Improvement of Crop Productivity.
ICIT
Pritimoy Sanyal, Ujjwal Bhattacharya, Swapan K. Parui, Samir Kumar Bandyopadhyay, Sandip C. Patel
2007 A conf
Direction Code Based Features for Recognition of Online Handwritten Characters of Bangla.
ICDAR
Ujjwal Bhattacharya, B. K. Gupta, Swapan K. Parui
2006 — conf
An HMM Based Recognition Scheme for Handwritten Oriya Numerals.
ICIT
Tapan Kumar Bhowmik, Swapan K. Parui, Ujjwal Bhattacharya, Bikash Shaw
2006 — conf
Analysis of Error Sources Towards Improved Form Processing.
ICIT
Ujjwal Bhattacharya, Bikash Shaw, Swapan K. Parui
2006 — conf
On Recognition of Handwritten Bangla Characters.
ICVGIP
Ujjwal Bhattacharya, Malayappan Shridhar, Swapan K. Parui
2006 — conf
Summarization of JBIG2 Compressed Indian Language Textual Images.
ICPR (3)
Utpal Garain, Alok Kumar Datta, Ujjwal Bhattacharya, Swapan K. Parui
2005 A conf
Databases for Research on Recognition of Handwritten Characters of Indian Scripts.
ICDAR
Ujjwal Bhattacharya, B. B. Chaudhuri
2005 A conf
Fusion of Combination Rules of an Ensemble of MLP Classifiers for Improved Recognition Accuracy of Handprinted Bangla Numerals.
ICDAR
Ujjwal Bhattacharya, B. B. Chaudhuri
2005 — conf
Processing Of Struck-out Handwriting.
IICAI
Ujjwal Bhattacharya, B. B. Chaudhuri
2005 — conf
Two-stage Recognition of Handwritten Bangla Alphanumeric Characters using Neural Classifiers.
IICAI
Ujjwal Bhattacharya, Swapan K. Parui, Malayappan Shridhar, Fumitaka Kimura
2004 — conf
On the choice of training set, architecture and combination rule of multiple MLP classifiers for multiresolution recognition of handwritten characters.
IWFHR
Ujjwal Bhattacharya, Szilárd Vajda, Anirban Mallick, B. B. Chaudhuri, Abdel Belaïd
2004 B conf
Recognition of Bangla Handwritten Characters Using an MLP Classifier Based on Stroke Features.
ICONIP
Tapan Kumar Bhowmik, Ujjwal Bhattacharya, Swapan K. Parui
2003 A conf
A Majority Voting Scheme for Multiresolution Recognition of Handprinted Numerals.
ICDAR
Ujjwal Bhattacharya, B. B. Chaudhuri
2002 — conf
A Cascaded Scheme for Recognition of Handprinted Numerals.
ICVGIP
Ujjwal Bhattacharya, Tanmoy Kanti Das, B. B. Chaudhuri
2002 J jnl
A Hybrid Scheme for Handprinted Numeral Recognition Based on a Self-Organizing Network and MLP Classifiers.
Int. J. Pattern Recognit. Artif. Intell.
Ujjwal Bhattacharya, Tanmoy Kanti Das, Amitava Datta, Swapan K. Parui, B. B. Chaudhuri
2002 — conf
Recognition of Handprinted Bangla Numerals Using Neural Network Models.
AFSS
Ujjwal Bhattacharya, Tanmoy Kanti Das, Amitava Datta, Swapan K. Parui, B. B. Chaudhuri
2000 J jnl
Efficient training and improved performance of multilayer perceptron in pattern classification.
Neurocomputing
B. B. Chaudhuri, Ujjwal Bhattacharya
2000 B conf
Shape Extraction of Volumetric Images of Filamentous Bacteria Using Topology Adaptive Self Organization.
ICPR
Ujjwal Bhattacharya, Amitava Datta, Swapan K. Parui, B. B. Chaudhuri, Volkmar Liebscher, Karsten Rodenacker
1997 J jnl
An MLP-based texture segmentation method without selecting a feature set.
Image Vis. Comput.
Ujjwal Bhattacharya, B. B. Chaudhuri, Swapan K. Parui
1996 B conf
An MLP-based texture segmentation technique which does not require a feature set.
ICPR
Ujjwal Bhattacharya, B. B. Chaudhuri, Swapan K. Parui
1995 J jnl
On the rate of convergence of perceptron learning.
Pattern Recognit. Lett.
Ujjwal Bhattacharya, Swapan K. Parui
1995 — conf
Self-adaptive learning rates in backpropagation algorithm improve its function approximation performance.
ICNN
Ujjwal Bhattacharya, Swapan K. Parui