Abeer

Abeer Banerjee

আবীর ব্যানার্জী

Computational imaging researcher | PhD Candidate

I am a PhD candidate with a research focus on computational imaging. My present affiliations are with AcSIR, CSIR-CEERI, Helmholtz Munich, and TUM. I have a bachelor's degree in Engineering from University of Calcutta. I was born and raised in Durgapur, West Bengal, India. Beyond my scholarly endeavors, I find great fascination in the fields of philosophy, sci-fi, politics, and photography.

me

Research

My research interests lie at the intersection of computational imaging, computer vision, and machine learning. I focus on computational image formation and reconstruction in low-data environments. Currently, I am working on the computational reconstruction of optoacoustic microscopic images. As a DAAD Bi-national PhD Fellow, I am under the joint supervision of Dr. Sanjay Singh and Prof. Vasilis Ntziachristos.

Selected Publications Experience Education Voluntary Services

Selected Publications

I have included a selection of my peer-reviewed publications primarily on computational imaging and also on some other related topics.

Inverse Problems in Computational Imaging

My primary research is solving inverse problems in computational imaging with AI. Some tested application areas have been on lensless image reconstruction, reconstruction of 3D absorption maps from optoacoustic microscopy images, and grayscale image colorization.

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Towards Physics-informed Cyclic Adversarial Multi-PSF Lensless Imaging
IEEE Transactions on Emerging Topics in Computational Intelligence, 2025
Impact factor: 6.5 - JCR Q1
Abeer Banerjee, Sanjay Singh
We propose a physics-informed cyclic adversarial framework that explicitly accounts for multiple point spread functions for lensless image reconstruction. The method improves robustness under unknown optical misalignment and diffuser perturbations.
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Towards Lensless Image Deblurring with Prior-Embedded Implicit Neural Representations
Engineering Applications of Artificial Intelligence, Elsevier, 2025
Impact factor: 8.0 | JCR Q1
Abeer Banerjee, Sanjay Singh
We propose prior-embedded INRs for lensless image deblurring. We show that even with one domain restricted image for embedding priors, we can have superior reconstructions compared to other iterative neural reconstruction methods.
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Reconstructing Synthetic Lensless Images in the Low-Data Regime
British Machine Vision Conference (BMVC), 2023
CORE Rank (2026): A | H5-index (2026): 57
Abeer Banerjee, Himanshu Kumar, Sumeet Saurav, Sanjay Singh
We perform domain restricted reconstruction of synthetic lensless images using underparameterized neural networks. We show that reconstructions can be achieved with only 10-15 domain restricted images using a two-step approach, domain-restricted pre-training and PSF-aware iterative reconstruction.
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Physics-informed Deep Deblurring: Over-parameterized vs. Under-parameterized
International Conference on Image Processing (ICIP), 2023 (Oral)
CORE Rank (2026): B | H5-index (2026): 55
Abeer Banerjee, Sumeet Saurav, Sanjay Singh
We propose a physics-informed deep deblurring framework that compares over-parameterized and under-parameterized neural networks for lensless image deblurring. We show that under-parameterized networks can be more robust and efficient in certain regimes.
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Lensless Image Reconstruction with an Untrained Neural Network
Image and Vision Computing New Zealand (IVCNZ), 2022
CORE Rank (2026): C | H5-index (2026): 16
Abeer Banerjee, Himanshu Kumar, Sumeet Saurav, Sanjay Singh
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ParaColorizer: Realistic Image Colorization using Parallel Generative Networks
The Visual Computer Journal, Springer, 2023
Impact factor: 3.5 | JCR Q2
Himanshu Kumar*, Abeer Banerjee*, Sumeet Saurav, Sanjay Singh (*Equal Contribution)

Neuromorphic Imaging

I have experience with Event cameras (Dynamic Vision Sensors) for neuromorphic imaging. Our published research showcases event-encoding schemes for computational image formation utilized by encoded-event-driven neural networks for eye-gaze estimation and fall detection.

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Generalized Gaze-Vector Estimation in Low-light with Encoded Event-driven Neural Network
International Joint Conference on Neural Networks (IJCNN), 2024 (Oral)
CORE Rank (2026): B | H5-index (2026): 66
Abeer Banerjee, Naval K Mehta, Shyam S Prasad, Himanshu Kumar, Sumeet Saurav, Sanjay Singh
We propose a novel event-driven neural network architecture for low-light gaze estimation. We captured a novel Gaze-FELL dataset and developed a temporal event-encoding scheme for a neural network driven gaze estimation and attained a 75-pixel acccuracy of 97%.
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Gaze Detection using Encoded Retinomorphic Events
International Conference on Intelligent Human Computer Interaction (IHCI), 2022 (Oral)
H5-index (2026): 14
Abeer Banerjee, Shyam S Prasad, Naval K Mehta, Himanshu Kumar, Sumeet Saurav, and Sanjay Singh

Other Collaborative Research

I have contributed to multiple collaborative research projects on face anti-spoofing, worker engagement prediction in indutrial scenario, event-driven human fall detection, all under the broad umbrella of human-computer interaction.

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JS-SpoofNet: A Jointly Supervised Parallel Branched Neural Network for Spoof Detection
Neurocomputing Journal, Elsevier, 2023
Impact factor: 6.0 | JCR Q1
Shyam S Prasad, Naval K Mehta, Abeer Banerjee, Sumeet Saurav, Sanjay Singh
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A Multimodal Dataset for Enhancing Industrial Task Monitoring and Engagement Prediction
International Conference on Human-Robot Interaction (HRI), 2025
CORE Rank (2026): A* | H5-index (2026): 52
Naval K Mehta, Arvind, Himanshu Kumar, Abeer Banerjee, Sumeet Saurav, Sanjay Singh

Experience

DAAD Bi-nationally Supervised PhD Fellow
Technical University of Munich, Munich, Germany
Oct 2024 – Present
Visiting Researcher
Institute of Biological and Medical Imaging, Helmholtz Center, Munich, Germany
Oct 2024 – Present
Senior Research Fellow
CSIR-Central Electronics Engineering Research Institute, Pilani, India
Sep 2022 – Sep 2024
Junior Research Fellow
CSIR-Central Electronics Engineering Research Institute, Pilani, India
Sep 2020 – Sep 2022
Research Intern
DRDO Instruments Research and Development Establishment, Dehradun, India
May 2018 – Jul 2018

Education

Academy of Scientific and Innovative Research (AcSIR), India
Integrated Dual Degree PhD Program
PhD Supervisors: Dr. Sanjay Singh (CSIR-CEERI) and Prof. Vasilis Ntziachristos (TUM)
Fellowships: DAAD PhD Fellowship, GATE-SRF, GATE-JRF
Master's thesis: Generative Colorization of Grayscale Images
2020 - Present
University of Calcutta, India
B.Tech in Electronics and Communication Engineering
Institute of Radio Physics and Electronics, Rajabazar Science College
Bachelor's thesis supervised by Prof. Ashik Paul
2016 - 2020

Voluntary Services

Invited reviewer
    SCI Journals: Neurocomputing, Scientific Reports, Applied Intelligence, Computers and Electrical Engineering, Expert Systems with Applications, The Visual Computer, IET Computer Vision, etc.
    Ranked Conferences: IJCNN, ICVGIP, ACML, etc.
Session Chair
    Served as session chair for the virtual session Neural Networks for Image Processing 17 at IEEE-IJCNN 2024.
Science communicator and technology demonstrator in CSIR outreach programs.
    Regularly organized by CSIR-CEERI through various events such as Jigyasa, One Week One Lab (OWOL), National Science Day, National Technology Day, etc.
Misc.
    Lab and teaching assistance, mentoring bachelor's thesis students, and grant writing.