Publications

2025

1. WACV

   VILLS: Video-image learning to learn semantics for person re-identification

   Siyuan Huang, Ram Prabhakar, Yuxiang Guo, and 2 more authors

   In Proceedings of the Winter Conference on Applications of Computer Vision, 2025

   arXiv Bib

   @inproceedings{huang2025vills,
     title = {VILLS: Video-image learning to learn semantics for person re-identification},
     author = {Huang, Siyuan and Prabhakar, Ram and Guo, Yuxiang and Chellappa, Rama and Peng, Cheng},
     booktitle = {Proceedings of the Winter Conference on Applications of Computer Vision},
     pages = {5969--5979},
     year = {2025}
   }

2. TBIOM

   Distillation-guided representation learning for unconstrained video human authentication

   Yuxiang Guo, Siyuan Huang, Ram Prabhakar, and 3 more authors

   IEEE Transactions on Biometrics, Behavior, and Identity Science, 2025

   Bib HTML

   @article{guo2025distillation,
     title = {Distillation-guided representation learning for unconstrained video human authentication},
     author = {Guo, Yuxiang and Huang, Siyuan and Prabhakar, Ram and Lau, Chun Pong and Chellappa, Rama and Peng, Cheng},
     journal = {IEEE Transactions on Biometrics, Behavior, and Identity Science},
     volume = {7},
     number = {4},
     pages = {940--952},
     year = {2025},
     publisher = {IEEE}
   }

2024

1. TBIOM

   Whole-body detection, recognition and identification at altitude and range

   Siyuan Huang, Ram Prabhakar, Yuxiang Guo, and 2 more authors

   IEEE Transactions on Biometrics, Behavior, and Identity Science, 2024

   Bib Website

   @article{huang2024whole,
     title = {Whole-body detection, recognition and identification at altitude and range},
     author = {Huang, Siyuan and Prabhakar, Ram and Guo, Yuxiang and Lau, Chun Pong and Chellappa, Rama},
     journal = {IEEE Transactions on Biometrics, Behavior, and Identity Science},
     url = {https://ieeexplore.ieee.org/stamp/stamp.jsp?arnumber=10737205},
     year = {2024}
   }

2. ECCV

   Leveraging thermal modality to enhance reconstruction in low-light conditions

   Jiacong Xu, Mingqian Liao, Ram Prabhakar, and 1 more author

   In European Conference on Computer Vision, 2024

   arXiv Bib

   @inproceedings{xu2024leveraging,
     title = {Leveraging thermal modality to enhance reconstruction in low-light conditions},
     author = {Xu, Jiacong and Liao, Mingqian and Prabhakar, Ram and Patel, Vishal M},
     booktitle = {European Conference on Computer Vision},
     dataset = {https://drive.google.com/file/d/1lVOaV5RCd6lnOMjaUM2Sdz2g0IpajZjT/view?usp=sharing},
     pages = {321--339},
     year = {2024},
     organization = {Springer Nature Switzerland Cham}
   }

3. ECCV

   Gamma-face: Gaussian mixture models amend diffusion models for bias mitigation in face images

   Basudha Pal, Arunkumar Kannan, Ram Prabhakar, and 2 more authors

   In European Conference on Computer Vision, 2024

   Bib PDF Code Poster

   @inproceedings{pal2024gamma,
     url = {https://bas-2k.github.io/gamma-face/},
     title = {Gamma-face: Gaussian mixture models amend diffusion models for bias mitigation in face images},
     author = {Pal, Basudha and Kannan, Arunkumar and Prabhakar, Ram and O’Toole, Alice J and Chellappa, Rama},
     booktitle = {European Conference on Computer Vision},
     pages = {471--488},
     year = {2024},
     organization = {Springer Nature Switzerland Cham}
   }

4. Patent

   Methods and systems for task adaptation using fuzzy deep learning architecture

   Jayavardhana Rama GUBBI LAKSHMINARASIMHA, Mohana SINGH, Arpan Pal, and 2 more authors

   Jun 2024

   US Patent App. 18/528,536

   Bib

   @misc{lakshminarasimha2024methods,
     title = {Methods and systems for task adaptation using fuzzy deep learning architecture},
     author = {LAKSHMINARASIMHA, Jayavardhana Rama GUBBI and SINGH, Mohana and Pal, Arpan and Prabhakar, Ram and Sudarshan, Viswanath Pamulakanty},
     year = {2024},
     month = jun,
     note = {US Patent App. 18/528,536}
   }

5. IJCB

   Distillation-guided representation learning for unconstrained gait recognition

   Yuxiang Guo, Siyuan Huang, Ram Prabhakar, and 3 more authors

   In IEEE International Joint Conference on Biometrics (IJCB), 2024

   Best Paper Bib

   IAPR Best Biometrics Student Paper Award 2024

   @inproceedings{guo2024distillation,
     url = {https://ieeexplore.ieee.org/document/11111687/},
     title = {Distillation-guided representation learning for unconstrained gait recognition},
     author = {Guo, Yuxiang and Huang, Siyuan and Prabhakar, Ram and Lau, Chun Pong and Chellappa, Rama and Peng, Cheng},
     booktitle = {IEEE International Joint Conference on Biometrics (IJCB)},
     pages = {1--11},
     year = {2024},
     organization = {IEEE}
   }

2023

1. arXiv

   CapsFlow: Optical Flow Estimation with Capsule Networks

   Rahul Chand, Rajat Arora, Ram Prabhakar, and 1 more author

   arXiv preprint arXiv:2304.00306, 2023

   arXiv Bib

   @article{chand2023capsflow,
     title = {CapsFlow: Optical Flow Estimation with Capsule Networks},
     author = {Chand, Rahul and Arora, Rajat and Prabhakar, Ram and Babu, R Venkatesh},
     journal = {arXiv preprint arXiv:2304.00306},
     year = {2023}
   }

2. ICDM

   Monitoring urban flooding using SAR—A Mumbai case study

   Chaman Banolia, Ram Prabhakar, and Shailesh Deshpande

   In International Conference on Data Management, Analytics & Innovation, 2023

   Bib

   @inproceedings{banolia2023monitoring,
     title = {Monitoring urban flooding using SAR—A Mumbai case study},
     author = {Banolia, Chaman and Prabhakar, Ram and Deshpande, Shailesh},
     booktitle = {International Conference on Data Management, Analytics \& Innovation},
     pages = {59--68},
     year = {2023},
     organization = {Springer Nature Singapore Singapore}
   }

3. CoRR

   GADER: GAit DEtection and Recognition in the Wild.

   Yuxiang Guo, Cheng Peng, Ram Prabhakar, and 2 more authors

   CoRR, 2023

   Bib

   @article{guo2023gader,
     title = {GADER: GAit DEtection and Recognition in the Wild.},
     author = {Guo, Yuxiang and Peng, Cheng and Prabhakar, Ram and Lau, Chun Pong and Chellappa, Rama},
     journal = {CoRR},
     year = {2023}
   }

4. arXiv

   Self-supervised learning of whole and component-based semantic representations for person re-identification

   Siyuan Huang, Yifan Zhou, Ram Prabhakar, and 6 more authors

   arXiv preprint arXiv:2311.17074, 2023

   arXiv Bib

   @article{huang2023self,
     title = {Self-supervised learning of whole and component-based semantic representations for person re-identification},
     author = {Huang, Siyuan and Zhou, Yifan and Prabhakar, Ram and Liu, Xijun and Guo, Yuxiang and Yi, Hongrui and Peng, Cheng and Chellappa, Rama and Lau, Chun Pong},
     journal = {arXiv preprint arXiv:2311.17074},
     volume = {4},
     year = {2023}
   }

5. Patent

   Method and system for LULC guided SAR visualization

   Jayavardhana Rama GUBBI LAKSHMINARASIMHA, Ram Prabhakar, Veera Harikrishna Nukala, and 2 more authors

   Dec 2023

   US Patent App. 18/331,384

   Bib

   @misc{lakshminarasimha2023method,
     title = {Method and system for LULC guided SAR visualization},
     author = {LAKSHMINARASIMHA, Jayavardhana Rama GUBBI and Prabhakar, Ram and Nukala, Veera Harikrishna and Purushothaman, Balamuralidhar and Pal, Arpan},
     year = {2023},
     month = dec,
     note = {US Patent App. 18/331,384}
   }

2022

1. arXiv

   Segmentation guided deep HDR deghosting

   Ram Prabhakar, Susmit Agrawal, and R Venkatesh Babu

   arXiv preprint arXiv:2207.01229, 2022

   arXiv Bib

   @article{prabhakar2022segmentation,
     title = {Segmentation guided deep HDR deghosting},
     author = {Prabhakar, Ram and Agrawal, Susmit and Babu, R Venkatesh},
     journal = {arXiv preprint arXiv:2207.01229},
     year = {2022}
   }

2. IGARSS

   Few-shot cross-sensor domain adaptation between SAR and Multispectral Data

   Ram Prabhakar, Veera Harikrishna Nukala, Jayavardhana Gubbi, and 2 more authors

   In IEEE International Geoscience and Remote Sensing Symposium, 2022

   Bib

   @inproceedings{prabhakar2022few,
     title = {Few-shot cross-sensor domain adaptation between SAR and Multispectral Data},
     author = {Prabhakar, Ram and Nukala, Veera Harikrishna and Gubbi, Jayavardhana and Pal, Arpan and others},
     booktitle = {IEEE International Geoscience and Remote Sensing Symposium},
     pages = {763--766},
     year = {2022},
     organization = {IEEE}
   }

3. IGARSS

   Improving SAR and optical image fusion for LULC classification with domain knowledge

   Ram Prabhakar, Veera Harikrishna Nukala, Jayavardhana Gubbi, and 2 more authors

   In IEEE International Geoscience and Remote Sensing Symposium, 2022

   Bib

   @inproceedings{prabhakar2022improving,
     title = {Improving SAR and optical image fusion for LULC classification with domain knowledge},
     author = {Prabhakar, Ram and Nukala, Veera Harikrishna and Gubbi, Jayavardhana and Pal, Arpan and others},
     booktitle = {IEEE International Geoscience and Remote Sensing Symposium},
     pages = {711--714},
     year = {2022},
     organization = {IEEE}
   }

4. ICVGIP

   A Few-shot approach to MRI-based Knee Disorder Diagnosis using Fuzzy Layers

   Mohana Singh, Ram Prabhakar, Viswanath Pamulakanty Sudarshan, and 3 more authors

   In Proceedings of the Thirteenth Indian Conference on Computer Vision, Graphics and Image Processing, 2022

   Bib

   @inproceedings{singh2022few,
     title = {A Few-shot approach to MRI-based Knee Disorder Diagnosis using Fuzzy Layers},
     author = {Singh, Mohana and Prabhakar, Ram and Pamulakanty Sudarshan, Viswanath and Poduval, Murali and Pal, Arpan and Gubbi, Jayavardhana},
     booktitle = {Proceedings of the Thirteenth Indian Conference on Computer Vision, Graphics and Image Processing},
     pages = {1--9},
     year = {2022}
   }

2021

1. CVPR

   Labeled from unlabeled: Exploiting unlabeled data for few-shot deep HDR deghosting

   Ram Prabhakar, Gowtham Senthil, Susmit Agrawal, and 2 more authors

   In IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR), 2021

   Bib PDF Video Code

   @inproceedings{prabhakar2021labeled,
     title = {Labeled from unlabeled: Exploiting unlabeled data for few-shot deep HDR deghosting},
     author = {Prabhakar, Ram and Senthil, Gowtham and Agrawal, Susmit and Babu, R Venkatesh and Gorthi, Rama Krishna Sai S},
     booktitle = {IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR)},
     pages = {4873--4883},
     year = {2021},
     organization = {IEEE}
   }

2. TCI

   Self-gated memory recurrent network for efficient scalable HDR deghosting

   Ram Prabhakar, Susmit Agrawal, and R Venkatesh Babu

   IEEE Transactions on Computational Imaging, 2021

   Bib Code

   @article{prabhakar2021self,
     title = {Self-gated memory recurrent network for efficient scalable HDR deghosting},
     author = {Prabhakar, Ram and Agrawal, Susmit and Babu, R Venkatesh},
     journal = {IEEE Transactions on Computational Imaging},
     volume = {7},
     url = {https://ieeexplore.ieee.org/document/9540317?source=authoralert},
     pages = {1228--1239},
     year = {2021},
     publisher = {IEEE}
   }

3. ICCVW

   Multi-domain conditional image translation: Translating driving datasets from clear-weather to adverse conditions

   Vishal Vinod, Ram Prabhakar, R Venkatesh Babu, and 1 more author

   In IEEE/CVF International Conference on Computer Vision Workshops (ICCVW), 2021

   Bib

   @inproceedings{vinod2021multi,
     title = {Multi-domain conditional image translation: Translating driving datasets from clear-weather to adverse conditions},
     author = {Vinod, Vishal and Prabhakar, Ram and Babu, R Venkatesh and Chakraborty, Anirban},
     booktitle = {IEEE/CVF International Conference on Computer Vision Workshops (ICCVW)},
     pages = {1571--1582},
     year = {2021},
     organization = {IEEE}
   }

4. Thesis

   Advances in High Dynamic Range Imaging Using Deep Learning

   Ram Prabhakar

   2021

   Bib

   @phdthesis{ramadvances,
     title = {Advances in High Dynamic Range Imaging Using Deep Learning},
     author = {Prabhakar, Ram},
     type = {Ph.D. dissertation},
     year = {2021},
     school = {IISc Bangalore}
   }

5. SPIE

   Multi-scale attention guided recurrent neural network for deformation map forecasting

   Veera Harikrishna Nukala, Madhumitha Nayak, Ram Prabhakar, and 3 more authors

   In Image and Signal Processing for Remote Sensing XXVII, 2021

   Bib

   @inproceedings{nukala2021multi,
     title = {Multi-scale attention guided recurrent neural network for deformation map forecasting},
     author = {Nukala, Veera Harikrishna and Nayak, Madhumitha and Prabhakar, Ram and Gubbi, Jayavardhana and Purushothaman, Balamuralidhar and others},
     booktitle = {Image and Signal Processing for Remote Sensing XXVII},
     volume = {11862},
     pages = {154--159},
     year = {2021},
     organization = {SPIE}
   }

6. BMVC

   Few-Shot Domain Adaptation for Low Light RAW Image Enhancement

   Ram Prabhakar, Vishal Vinod, Nihar R Sahoo, and 1 more author

   In British Machine Vision Conference, 2021

   Best Paper - Runner Bib PDF Website

   Best Student Paper Award - Runner up

   @inproceedings{prabhakar2021few,
     dataset = {https://www.kaggle.com/datasets/razorblade/nikon-camera-dataset},
     title = {Few-Shot Domain Adaptation for Low Light RAW Image Enhancement},
     author = {Prabhakar, Ram and Vinod, Vishal and Sahoo, Nihar R and Babu, R Venkatesh},
     booktitle = {British Machine Vision Conference},
     year = {2021}
   }

7. Patent

   Method and system for semantic change detection using deep neural network feature correlation

   Jayavardhana Rama GUBBI LAKSHMINARASIMHA, Akshaya RAMASWAMY, Balamuralidhar Purushothaman, and 2 more authors

   Dec 2021

   US Patent 11,200,657

   Bib

   @misc{lakshminarasimha2021method,
     title = {Method and system for semantic change detection using deep neural network feature correlation},
     author = {LAKSHMINARASIMHA, Jayavardhana Rama GUBBI and RAMASWAMY, Akshaya and Purushothaman, Balamuralidhar and K, Ram Prabhakar and RADHAKRISHNAN, Venkatesh Babu},
     year = {2021},
     month = dec,
     note = {US Patent 11,200,657}
   }

2020

1. IJCNN

   CDNet++: Improved change detection with deep neural network feature correlation

   Ram Prabhakar, Akshaya Ramaswamy, Suvaansh Bhambri, and 3 more authors

   In International Joint Conference on Neural Networks (IJCNN), 2020

   Bib

   @inproceedings{prabhakar2020cdnet++,
     title = {CDNet++: Improved change detection with deep neural network feature correlation},
     author = {Prabhakar, Ram and Ramaswamy, Akshaya and Bhambri, Suvaansh and Gubbi, Jayavardhana and Babu, R Venkatesh and Purushothaman, Balamuralidhar},
     booktitle = {International Joint Conference on Neural Networks (IJCNN)},
     pages = {1--8},
     year = {2020},
     organization = {IEEE}
   }

2. ECCV

   Towards Practical and Efficient High-Resolution HDR Deghosting with CNN

   Ram Prabhakar, Susmit Agrawal, Durgesh Kumar Singh, and 2 more authors

   In ECCV, 2020

   Bib HTML

   @inproceedings{prabhakar2020towards,
     title = {Towards Practical and Efficient High-Resolution HDR Deghosting with CNN},
     author = {Prabhakar, Ram and Agrawal, Susmit and Singh, Durgesh Kumar and Ashwath, Balraj and Babu, R Venkatesh},
     booktitle = {ECCV},
     pages = {497--513},
     year = {2020}
   }

2019

1. BOE

   PA-Fuse: deep supervised approach for the fusion of photoacoustic images with distinct reconstruction characteristics

   Navchetan Awasthi, Ram Prabhakar, Sandeep Kumar Kalva, and 3 more authors

   Biomedical optics express, 2019

   Bib HTML

   @article{awasthi2019pa,
     title = {PA-Fuse: deep supervised approach for the fusion of photoacoustic images with distinct reconstruction characteristics},
     author = {Awasthi, Navchetan and Prabhakar, Ram and Kalva, Sandeep Kumar and Pramanik, Manojit and Babu, R Venkatesh and Yalavarthy, Phaneendra K},
     journal = {Biomedical optics express},
     volume = {10},
     number = {5},
     pages = {2227--2243},
     year = {2019},
     publisher = {Optical Society of America}
   }

2. ICCP

   A Fast, Scalable, and Reliable Deghosting Method for Extreme Exposure Fusion

   Ram Prabhakar, Rajat Arora, Adhitya Swaminathan, and 2 more authors

   In ICCP, 2019

   Bib HTML Code

   @inproceedings{prabhakar2019fast,
     title = {A Fast, Scalable, and Reliable Deghosting Method  for Extreme Exposure Fusion},
     author = {Prabhakar, Ram and Arora, Rajat and Swaminathan, Adhitya and Singh, Kunal Pratap and Babu, R. Venkatesh},
     booktitle = {ICCP},
     year = {2019}
   }

2017

1. ICCV

   DeepFuse: A deep unsupervised approach for exposure fusion with extreme exposure image pairs

   Ram Prabhakar, V Sai Srikar, and R Venkatesh Babu

   In Proceedings of the IEEE international conference on computer vision, 2017

   Bib HTML Code

   @inproceedings{ram2017deepfuse,
     title = {DeepFuse: A deep unsupervised approach for exposure fusion with extreme exposure image pairs},
     author = {Prabhakar, Ram and Sai Srikar, V and Venkatesh Babu, R},
     booktitle = {Proceedings of the IEEE international conference on computer vision},
     pages = {4714--4722},
     year = {2017}
   }

2016

1. ICASSP

   Ghosting-free multi-exposure image fusion in gradient domain

   Ram Prabhakar and R Venkatesh Babu

   In IEEE international conference on acoustics, speech and signal processing (ICASSP), 2016

   Code
2. ICVGIP

   Ghosting free HDR for dynamic scenes via shift-maps

   Ram Prabhakar and R Venkatesh Babu

   In Proceedings of the Tenth Indian Conference on Computer Vision, Graphics and Image Processing, 2016

   Bib HTML

   @inproceedings{prabhakar2016ghostinh,
     title = {Ghosting free HDR for dynamic scenes via shift-maps},
     author = {Prabhakar, Ram and Babu, R Venkatesh},
     booktitle = {Proceedings of the Tenth Indian Conference on Computer Vision, Graphics and Image Processing},
     pages = {1--8},
     year = {2016}
   }

2014

1. Thesis

   Phase-only image synthesis using Fast Generalized Fourier Family Transform (FGFT)

   Ram Prabhakar

   2014

   Bib

   @mastersthesis{prabhakar2014phase,
     title = {Phase-only image synthesis using Fast Generalized Fourier Family Transform (FGFT)},
     author = {Prabhakar, Ram},
     year = {2014},
     type = {Master's thesis},
     school = {NIT Rourkela}
   }