Publications

2024

Ali Jamali, Swalpa Kumar Roy, Leila Hashemi Beni, Biswajeet Pradhan, Jonathan Li, Pedram Ghamisi "Residual Wave Vision U-Net for Flood Mapping using Dual Polarization Sentinel-1 SAR Imagery" International Journal for Applied Earth Observation and GeoinformationCode

Ali Jamali, Swalpa Kumar Roy, Danfeng Hong, Peter M Atkinson, Pedram Ghamisi "Spatial Gated Multi-Layer Perceptron for Land Use and Land Cover Mapping" IEEE Geoscience and Remote Sensing LettersCode

Dhiman Mondal, Purbayan Kar, Kushal Roy, Dipak Kumar Kole, and Swalpa Kumar Roy "X-Resformer: A Model to Detect Infestation of Pest and Diseases on Crops" SN Computer Science, Springer, volume 5, no. 86, 2024

Shiv Nath Chaudhri and Swalpa Kumar Roy "A Discriminatory Groups-based Supervised Band Selection Technique for Hyperspectral Image Classification" Remote Sensing Letters (RSL), Taylor and Francis Group

Ali Jamali, Swalpa Kumar Roy, Jonathan Li, Pedram Ghamisi "Neighborhood Attention Makes the Encoder of ResUNet Stronger for Accurate Road Extraction" IEEE Geoscience and Remote Sensing LettersCode

Ali Jamali, Swalpa Kumar Roy, Biswajeet Pradhan "e-TransUNet: TransUNet Provides a Strong Spatial Transformation for Precise Deforestation Mapping" Remote Sensing Applications: Society and Environment, volume 35Code

Swalpa Kumar Roy, Atri Sukul, Ali Jamali, Juan M. Haut, Pedram Ghamisi "Cross Hyperspectral and LiDAR Attention Transformer: An Extended Self-Attention for Land Use and Land Cover Classification" IEEE Transactions on Geoscience and Remote Sensing, volume 62, Code PDF

Xin Qiao, Swalpa Kumar Roy, Weimin Huang "3-D Sharpened Cosine Similarity Operation for Hyperspectral Image Classification" IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, volume: 17, pages 1114 - 1125PDF

Ali Jamali, Swalpa Kumar Roy, Danfeng Hong, Peter M Atkinson, Pedram Ghamisi "Attention Graph Convolutional Network for Disjoint Hyperspectral Image Classification" IEEE Geoscience and Remote Sensing Letters, volume 21PDF

J10

Yi-Lun Zhang, Wen-Tao Wang, Jia-Hui Guan, Deepak Kumar Jain, Tian-Yang Wang, Swalpa Kumar Roy "MocFormer: A Two-Stage Pre-training-Driven Transformer for Drug–Target Interactions Prediction" International Journal of Computational Intelligence Systems, Springer

J11

Zhonghao Chen, Yuyang Wang, Swalpa Kumar Roy, Hongmin Gao, Yao Ding, Xiongwu Xiao, Zhenfeng Shao, Bing Zhang " TL2GH2T: Triple-path Local to Global Network with Hybrid Head Transformer for Hyperspectral Change Detection" IEEE Transactions on Geoscience and Remote Sensing, DOI: 10.1109/TGRS.2024.3445930PDF

Athanasios Tragakis, Qianying Liu, Chaitanya Kaul, Swalpa Kumar Roy, Hang Dai, Fani Deligianni, Roderick Murray-Smith, Daniele Faccio "GLFNET: Global-Local (frequency) Filter Networks for Efficient Medical Image Segmentation" IEEE International Symposium on Biomedical Imaging 2024PDF

Ali Jamali, Swalpa Kumar Roy, Avik Bhattacharya, Bing Lu, Pedram Ghamisi "Sharpened Cosine Similarity U-Net for Deforestation Mapping" IEEE India Geoscience and Remote Sensing Symposium (InGARSS), 2024PDF

Risab Biswas, Soumik Sarkhel, Swalpa Kumar Roy, Umapada Pal "TransDocUNet: A Transformer-based UNet Architecture for Degraded Document Image Binarization" Proceedings of the Fourteenth Indian Conference on Computer Vision, Graphics and Image ProcessingPDF

2023

J12

K.-C. Gröschler, A. Muhuri, Swalpa Kumar Roy, and N. Oppelt "Monitoring the Population Development of Indicator Plants in High Nature Value Grassland using Machine Learning and Drone Data" Drones, vol. 7, no. 10, p. 644, 2023

J13

X. Qiao, Swalpa Kumar Roy, and W. Huang "Hyperspectral Image Classification Based On 3D Sharpened Cosine Similarity Operation" IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2023

J14

Xin Qiao, Swalpa Kumar Roy, and Weimin Huang "Multiscale Neighborhood Attention Transformer With Optimized Spatial Pattern for Hyperspectral Image Classification" IEEE Transactions on Geoscience and Remote Sensing, 2023.PDF Code

J15

Mercedes E. Paoletti, Xuanwen Tao, Lirong Han, Zhaoyue Wu, Sergio Moreno-Álvarez, Swalpa Kumar Roy, Antonio Plaza and Juan M. Haut "Parameter-Free Attention Network for Spectral-Spatial Hyperspectral Image Classification" IEEE Transactions on Geoscience and Remote Sensing, Volume: 61, 2023PDF Code

J16

Minghua Wang, Qiang Wang, Danfeng Hong, Swalpa Kumar Roy, and Jocelyn Chanussot "Learning Tensor Low-Rank Representation for Hyperspectral Anomaly Detection" IEEE Transactions on Cybernetics, Volume: 53, Issue: 1, January 2023.

J17

Ali Jamali, Swalpa Kumar Roy, Avik Bhattacharya, and Pedram Ghamisi "Local Window Attention Transformer for Polarimetric SAR Image Classification" IEEE Geoscience and Remote Sensing Letters, 2023PDF Code

J18

Ali Jamali, Swalpa Kumar Roy, and Pedram Ghamisi "WetMapFormer: A Unified Deep CNN and Vision Transformer for Complex Wetland Mapping" International Journal of Applied Earth Observation and Geoinformation, vol. 120, p. 103 333, 2023PDF Code

J19

Ali Jamali, Swalpa Kumar Roy, Jonathan Li, and Pedram Ghamisi "TransU-Net++: Rethinking Attention Gated TransU-Net for Deforestation Mapping" International Journal of Applied Earth Observation and Geoinformation, vol. 120, p. 103 332, 2023PDF Code

J20

U. Nandi, Swalpa Kumar Roy, Danfeng Hong, Xin Wu, and Jocelyn Chanussot "TAttMSRecNet: Triplet-attention and Multiscale Reconstruction Network for Band Selection in Hyperspectral Images" Expert Systems with Applications, vol. 212, pp. 118 797, 2023.Code

J21

Swalpa Kumar Roy, Ankur Deria, Danfeng Hong, Behnood Rasti, Antonio Plazza, and Jocelyn Chanussot " Multimodal Fusion Transformer for Remote Sensing Image Classification" IEEE Transactions on Geoscience and Remote Sensing, Volume: 61, 2023arXiv PDF Code ESI Highly Cited Paper

J22

Swalpa Kumar Roy, Ankur Deria, Chiranjibi Shah, Juan M. Haut, Qian Du, and Antonio Plaza "Spectral-Spatial Morphological Attention Transformer for Hyperspectral Image Classification" IEEE Transactions on Geoscience and Remote Sensing, volume 61, 2023PDF Code ESI Highly Cited Paper

J23

Xin Qiao, Swalpa Kumar Roy, and Weimin Huang "Rotation is All You Need: Cross Dimensional Residual Interaction for Hyperspectral Image Classification" IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing (2023).PDF

2022

J24

Preetam Ghosh, Swalpa Kumar Roy, Bikram Koirala, Behnood Rasti, and Paul Scheunders "Deep Hyperspectral Unmixing using Transformer Network" IEEE Transactions on Geoscience and Remote Sensing, Volume: 60, 2022PDF arXiv Code

J25

Muhammad Ahmad, Sidrah Shabbir, Swalpa Kumar Roy, Danfeng Hong, Xin Wu, Jing Yao, Adil Mehmood Khan, Manuel Mazzara, Salvatore Distefano, and Jocelyn Chanussot "Hyperspectral Image Classification--Traditional to Deep Models: A Survey for Future Prospects" IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, pp. 968 - 999, volume: 15, 2022arXiv PDF Code ESI Highly Cited Paper

J26

Swalpa Kumar Roy, Danfeng Hong, Purbayan Kar, Xin Wu, Xun Liu, and Di Zhao "Lightweight Heterogeneous Kernel Convolution for Hyperspectral Image Classification With Noisy Labels" IEEE Geoscience and Remote Sensing Letters, Vol: 19, 2022.arXiv PDF

J27

Yuanlin Wang, Tiecheng Song, Yurui Xie, and Swalpa Kumar Roy "A Probabilistic Neighbourhood Pooling-Based Attention Network for Hyperspectral Image Classification" International Journal of Remote Sensing and Remote Sensing Letters, Taylor & Francis, vol. 13(1), pp. 65-75, 2022.arXiv PDF

Swalpa Kumar Roy, Suvojit Manna, Shiv Ram Dubey, and Bidyut B. Chaudhuri "LiSHT: Non-Parametric Linearly Scaled Hyperbolic Tangent Activation Function for Neural Networks" Computer Vision and Image Processing (CVIP), vol. 1776, Springer, 2022.arXiv PDF Code

2021

J28

Swalpa Kumar Roy, Purbayan Kar, Danfeng Hong, Xin Wu, Antonio Plaza, and Jocelyn Chanussot "Revisiting Deep Hyperspectral Feature Extraction Networks via Gradient Centralized Convolution" IEEE Transactions on Geoscience and Remote Sensing, Vol: 60, 2021arXiv PDF Code

J29

Mercedes E. Paoletti, Juan M. Haut, Tayeb Alipour-Fard, Swalpa Kumar Roy, Eligius M. T. Hendrix, and Antonio Plaza "Separable Attention Network in Single and Mixed Precision Floating Point for Land-Cover Classification of Remote Sensing Images" IEEE Geoscience and Remote Sensing Letters, Vol: 19, 2021

J30

Swalpa Kumar Roy, Purbayan Kar, Mercedes E. Paoletti, Juan M. Haut, Rafael Pastor-Vargas, and Antonio Robles-Gómez "SiCoDeF2Net: Siamese Convolution deconvolution Feature Fusion Network for One-Shot Classification" IEEE Access, 2021.PDF Code

J31

Swalpa Kumar Roy, Ranjan Mondal, Mercedes E. Paoletti, Juan M. Haut, and Antonio Plaza. "Morphological Convolutional Neural Networks for Hyperspectral Image Classification" IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, pp. 8689 - 8702, volume 14, 2021.arXiv Code

J32

Swalpa Kumar Roy, Juan M. Haut, Mercedes E. Paoletti, Shiv Ram Dubey and Antonio Plaza "Generative Adversarial Minority Oversampling for Spectral-Spatial Hyperspectral Image Classification" IEEE Transaction on Geoscience and Remote Sensing, Vol: 60, 2021.Code

Xuanwen Tao, Lirong Han, Mercedes E. Paoletti, Swalpa Kumar Roy, Juan M. Haut and Antonio Plaza "Multiple Incremental Kernel Convolution for Land Cover Classification of Remotely Sensed Images" IEEE 41st International Geoscience and Remote Sensing Symposium (IGARSS), 2021

Swalpa Kumar Roy, Mercedes E. Paoletti, Juan M. Haut, Eligius M. T. Hendrix and Antonio Plaza "A New Max-Min Convolutional Network for Hyperspectral Image Classification" 11th IEEE Workshop on Hyperspectral Image and Signal Processing: Evolution in Remote Sensing (WHISPERS), 2021.

2020

J33

Swalpa Kumar Roy, Suvojit Manna, Tiecheng Song, and Lorenzo Bruzzone "Attention-based Adaptive Spectral-Spatial Kernel ResNet for Hyperspectral Image Classification" IEEE Transaction on Geoscience and Remote Sensing, pp. 7831 - 7843, volume: 59, 2020arXiv Code ESI Highly Cited Paper

J34

Mercedes E. Paoletti, Juan M. Haut, Swalpa Kumar Roy, and Eligius M.T. Hendrix "Rotation Equivariant Convolutional Neural networks for Hyperspectral Image Classification" IEEE Access, 2020.PDF

J35

Swalpa Kumar Roy, Sayantan Das, Tiecheng Song, and Bhabatosh Chanda "DARecNet-BS: Unsupervised Dual Attention Reconstruction Network for Hyperspectral Band Selection" IEEE Geoscience and Remote Sensing Letters, 2020.arXiv PDF Code

J36

Swalpa Kumar Roy, Dipak Kumar Ghosh, Shiv Ram Dubey, Siddhartha Bhattacharyya, and Bidyut B. Chaudhuri " Unconstrained Texture Classification Using Efficient Jet Texton Learning" Journal of Applied Soft Computing, Elsevier, 2019PDF Code arXiv

J37

Swalpa Kumar Roy, Subhrasankar Chatterjee, Siddhartha Bhattacharyya, Bidyut B. Chaudhuri, and Jan Platosˇ "Lightweight Spectral-Spatial Squeeze-and-Excitation Residual Bag-of-Features Learning for Hyperspectral Classification" IEEE Transactions on Geoscience and Remote Sensing, pp. 5277 - 5290, volume: 58 (8), 2019PDF Code

J38

Shiv Ram Dubey, Soumendu Chakraborty, Swalpa Kumar Roy, Snehasis Mukherjee, Satish Kumar Singh, and Bidyut B. Chaudhuri "diffGrad: An Optimization Method for Convolutional Neural Networks" IEEE Transaction of Neural Networks and Learning Systems, pp. 4500 - 4511, volume: 31 (11), 2020arXiv PDF Code ESI Highly Cited Paper

2019

J39

Shiv Ram Dubey, Swalpa Kumar Roy, Soumendu Chakraborty, Snehasis Mukherjee, and Bidyut B. Chaudhuri "Local Bit-plane Decoded Convolutional Neural Network Features for Biomedical Image Retrieval" Journal of Neural Computing and Applications, Springer, 2019.Code

J40

Swalpa Kumar Roy, Gopal Krishna, Shiv Ram Dubey, and Bidyut B. Chaudhuri "HybridSN: Exploring 3D-2D CNN Feature Hierarchy for Hyperspectral Image Classification" Journal of Geoscience and Remote Sensing Letters, IEEE, vol. 17(2), pp. 277-281, 2019.arXiv PDF Code ESI Highly Cited Paper

J41

Swalpa Kumar Roy, Shiv Ram Dubey, and Bidyut B. Chaudhuri "Local ZigZag Max Histograms of Pooling Pattern for Texture Classification" Journal of Electronics Letters, IET, volume: 55(7), pages: 382-384, 2019PDF

Swalpa Kumar Roy, Shiv Ram Dubey, Bhabatosh Chanda, Bidyut B. Chaudhuri, and Dipak Kumar Ghosh "TexFusionNet: An Ensemble of Deep CNN Feature for Texture Classification" Proceedings of 3rd International Conference on Computer Vision and Image Processing, pages: 271-283, 2018.PDF Code Poster

2018

J42

Swalpa Kumar Roy, Bhabatosh Chanda, Bidyut B. Chaudhuri, Dipak Kumar Ghosh, and Shiv Ram Dubey "Local Jet Pattern: A Robust Descriptor for Texture Classification" Journal of Multimedia Tools and Applications, Springer, vol. 79, pp. 4783-4809, 2018PDF

J43

Swalpa Kumar Roy, Bhabatosh Chanda, Bidyut B. Chaudhuri, Dipak Kumar Ghosh, and Shiv Ram Dubey "Morphological Pattern: A Scale Space Shape Descriptor for Texture Classification" Journal of Digital Signal Processing, Elsevier, pages: 152 - 165, volume: 82, 201PDF Code

J44

Swalpa Kumar Roy, Bhabatosh Chanda, Bidyut B. Chaudhuri, Dipak Kumar Ghosh, and Shiv Ram Dubey "Local Directional ZigZag Pattern: A Rotation Invariant Descriptor for Texture Classification" Journal of Pattern Recognition Letters, Elsevier, pages: 23-30, volume: 108, 2018PDF Code

J45

Swalpa Kumar Roy, Siddharth Kumar, Bhabatosh Chanda, Bidyut B. Chaudhuri, and Soumitro Banerjee "Fractal Image Compression using Upper Bound on Scaling Parameter" Journal of Chaos, Solitons & Fractals, Elsevier, pages: 16-22, volume: 106, 2018PDF Code

Swalpa Kumar Roy, Dipak Kumar Ghosh, Rajat Kumar Pal, and Bidyut B. Chaudhuri "Affine Differential Local Mean ZigZag Pattern for Texture Classification" Proceedings of of Asia Pacific IEEE Region 10 TENCON, Republic of Korea, pages: 488-493, 2018.PDF

2017

Swalpa Kumar Roy, Bhabatosh Chanda, Bidyut B. Chaudhuri, Dipak Kumar Ghosh, and Shiv Ram Dubey "A Complete Dual-Cross Pattern for Unconstrained Texture Classification" the Proceedings of IEEE 4th IAPR Asian Conference on Pattern Recognition, China (ACPR), pages: 741-746, 2017PDF Code

2015

C10

S. Ray, Swalpa Kumar Roy, D. Bhattacharyya, and T.-H. Kim "A theoretical model to support multicast involving multiple senders over dpmm" Fifth International Conference on Communication Systems and Network Technologies, IEEE, 2015, pp. 107–110

C11

Nilavra Bhattacharya, Swalpa Kumar Roy, Utpal Nandi, and Soumitro Banerjee "Fractal Image Compression using Hierarchical Classification of Sub-images." Proceedings of the 10th International Conference on Computer Vision Theory and Applications - Berlin, Germany, VISAPP, pages: 46-53, 2015PDF