Research output

Publications

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Papers per year Journal Conference
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YearJournalConferenceTotal
2026167
2025033
2024022
2023336
2022235
2021145
2020303
20197411
2018123
2017033
2016246
2015112
2014112
2013022
2012022
2011213
2010011
2009101

2026

NeurIPS2026

OTEdit: Entropic Transport Corrected Trajectory for Inversion-Free Flow-Based Image Editing

Rameshwar Mishra, Akshay Modi, A V Subramanyam

Conference on Neural Information Processing Systems (NeurIPS) · to appear

Proposes an inversion-free, text-driven image editing method that steers flow-model editing trajectories using entropic optimal transport between source and target latent particle clouds, improving structure preservation and semantic alignment.

BMVC2026

RefineFlow: Estimating the Editing Velocity with Geometric, Trajectory, and Locality Priors for Inversion Free Flow Editing

Rameshwar Mishra, A V Subramanyam

British Machine Vision Conference (BMVC) · to appear

EMNLP2026

Do Prompts Guarantee Safety? Mitigating Toxicity from LLM Generations through Gradient Based Subspace Intervention

Himanshu Singh, Ziwei Xu, A V Subramanyam, Mohan Kankanhalli

Findings of the Association for Computational Linguistics: EMNLP 2026 · to appear

Proposes a gradient-based subspace intervention that finds and suppresses hidden toxic patterns in LLM representations, reducing toxicity of state-of-the-art detoxification systems by 8-20% while keeping fluency.

ECCV2026

RefDiT: Local Attribute Guidance in Reference-Based Image Generation

Rameshwar Mishra, Srikrishna Karanam, A V Subramanyam

European Conference on Computer Vision (ECCV), LNCS Part XXV, pp. 366-382

RefDiT is a reference-guided image generation framework that decomposes identifier tokens into attribute-level signals and trains LoRA blocks of a diffusion transformer to transfer local attributes from reference images.

IEEE TAI2026

Nearest Neighbor Projection Removal Adversarial Training

Himanshu Singh, A. V. Subramanyam, Shivank Rajput, Mohan Kankanhalli

IEEE Transactions on Artificial Intelligence, vol. 7, no. 9, pp. 5287-5295

Proposes an adversarial training method that improves robustness by finding each adversarial sample's nearest neighbours from other classes and removing its feature projections onto them, reducing inter-class feature overlap.

ICMEW2026

AD-Relight: Training-Free Banner Relighting via Illumination Translation with Diffusion Priors

Rameshwar Mishra, A V Subramanyam

IEEE International Conference on Multimedia and Expo Workshops (ICMEW), CMI2IT Workshop, Bangkok, Thailand · to appear

Presents AD-Relight, a multi-stage, training-free framework that adapts a diffusion-based relighting model at test time to realistically relight custom ad banners inserted into scenes.

ICASSP2026

Lie Bracket Geometry of Feature Learning in Neural Networks

A V Subramanyam

IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)

Studies neural network training dynamics through Lie brackets of loss-gradient vector fields: the brackets vanish in the NTK (lazy) regime, and non-zero brackets mark feature learning.

2025

ICME2025

Beckman Adversarial Defense

A. V. Subramanyam

IEEE International Conference on Multimedia and Expo (ICME), pp. 1-6

Proposes the Beckman barycenter, an efficiently computable optimal-transport barycenter, which is used to fine-tune adversarially trained networks and improves their robustness to AutoAttack on CIFAR and Tiny ImageNet.

ICASSP2025

Keypoint Aware Masked Image Modelling

Madhava Krishna, A. V. Subramanyam

IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), pp. 1-5

Proposes KAMIM, which weights image patches using keypoint features during SimMIM's masked reconstruction, improving linear probing and fine-tuning accuracy of vision transformers on ImageNet-1K.

ICASSP2025

Efficient Localized Perception for Resource-Constrained Vision Systems

A. V. Subramanyam, Niyati Singal, Vinay K. Verma

IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), Hyderabad, India, pp. 1-5

Introduces a memory-efficient patch-based framework that combines global context with local patch information to train on ultra-high-resolution images, running even on resource-constrained devices like Jetson Nano.

2024

BMVC2024

Layout Free Scene Graph to Image Generation

Rameshwar Mishra, A V Subramanyam

The British Machine Vision Conference (BMVC)

ICASSP2024

Language Guided Adversarial Purification

Himanshu Singh, A V Subramanyam

IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)

2023

IEEE TCSVT2023

Meta Generative Attack on Person Reidentification

A V Subramanyam

IEEE Transactions on Circuits and Systems for Video Technology

IEEE Sensors Letters2023

Circularly Polarized Fabry-Pèrot Cavity Sensing Antenna Design using Generative Model

Kainat Yasmeen, K V Mishra, A V Subramanyam and S S Ram

IEEE Sensors Letters

ICVGIP2023

Dense captioning for Text-Image ReID

A V Subramanyam, Vibhu Dubey, Niranjan Sundararajan, Brejesh Lall

Indian Conference on Computer Vision, Graphics and Image Processing (ICVGIP), pp. 17:1-17:8

Proposes a text-to-image person ReID dataset of 20,000 in-the-wild identities with dense captions, adds Stable Diffusion/BLIP synthetic data, and benchmarks state-of-the-art ReID and vision-language models.

ICME2023

Meta Perturbed Re-Id Defense

Astha Verma, A V Subramanyam, Mohammad Ali Jauhar, Divij Gera, Rajiv Ratn Shah

IEEE International Conference on Multimedia and Expo (ICME), pp. 2597-2602

Proposes a meta-learning defense for re-identification that trains a stochastic network with anisotropic and isotropic perturbations and a feature covariance alignment loss to resist adversarial attacks.

URSI GASS2023

Antenna Design Optimization using GAN-based Surrogate Model

Kainat Yasmeen, Kumar Vijay Mishra, A V Subramanyam, Shobha Sundar Ram

URSI General Assembly and Scientific Symposium (URSI GASS), Sapporo, Japan

Uses a GAN-based surrogate model, trained on a modest number of antenna designs, to optimize a Fabry-Pérot cavity antenna's reflecting-surface unit cell, validated through simulations and measurements.

IEEE TMM2023

Unsupervised Domain Adaptation for Person Re-identification via Individual-preserving and Environmental-switching Cyclic Generation

A. Verma, A V Subramanyam, Z. Wang, S. Satoh, R. Shah

IEEE Transactions on Multimedia, vol. 25, pp. 364-377

2022

IEEE TIP2022

Sinkhorn Adversarial Attack and Defense

A V Subramanyam

IEEE Transactions on Image Processing

ICIP2022

Barycentric Defense

A V Subramanyam, Abhigyan Raj

IEEE International Conference on Image Processing (ICIP)

MIPR2022

Wasserstein Metric Attack on Person Re-Identification

Astha Verma, A V Subramanyam, Rajiv Ratn Shah

IEEE International Conference on Multimedia Information Processing and Retrieval (MIPR)

MIPR2022Best Paper Award

Contextual Active Learning for Person Re-Identification

Vineet Joshi, A V Subramanyam

IEEE International Conference on Multimedia Information Processing and Retrieval (MIPR)

IEEE TCSVT2022

Channel Graph Regularized Correlation Filters for Visual Object Tracking

M. Jain, A. Tyagi, A V Subramanyam, S. Denman, C. Fookes and S. Sridharan

IEEE Transactions on Circuits and Systems for Video Technology, vol. 32, no. 2, pp. 715-729

2021

Wireless Networks2021

Novel deep learning framework for wideband spectrum characterization at sub-Nyquist rate

S. Chandhok, H. Joshi, A V Subramanyam and S. Darak

Wireless Networks, vol. 27, pp. 4727-4746

WACV2021

IGSSTRCF: Importance Guided Sparse Spatio-Temporal Regularized Correlation Filters For Tracking

Monika Jain, Arjun Tyagi, A V Subramanyam, Simon Denman, Clinton Fookes and Sridha Sridharan

IEEE Winter Conference on Applications of Computer Vision (WACV), pp. 2774-2783

SMC2021

Disentangling Reconstruction Network for Unsupervised Cross-Domain Person Re-Identification

Kajal Kansal, Harsh Jain, A V Subramanyam

IEEE International Conference on Systems, Man and Cybernetics

IGARSS2021

In-Sat: A Novel Land Cover Classification Dataset for Indian Subcontinent

M. Shah, A. V. Subramanyam and G. Arora

IEEE International Geoscience and Remote Sensing Symposium IGARSS, pp. 6650-6653

ICMEW2021

Hierarchical Attention Image-Text Alignment Network For Person Re-Identification

K. Kansal, A. Subramanyam, Z. Wang and S. Satoh

IEEE International Conference on Multimedia & Expo Workshops (ICMEW), Shenzhen, China, pp. 1-6

2020

CVIU2020

LSTM guided ensemble correlation filter tracking with appearance model pool

M. Jain, A V Subramanyam, S. Denman, C. Fookes and S. Sridharan

Computer Vision and Image Understanding, vol. 195

IEEE TCSVT2020

SDL: Spectrum-Disentangled Representation Learning for Visible-Infrared Person Re-identification

K. Kansal, A.V. Subramanyam, Z. Wang and S. Satoh

IEEE Transactions on Circuits and Systems for Video Technology, vol. 30, no. 10, pp. 3422-3432, Oct. 2020

IEEE TCSVT2020

Egocentric Analysis of Dash-cam Videos For Vehicle Forensics

A. Mehrish, P. Singh, P. Jain, A.V. Subramanyam, M. Kankanhalli

IEEE Transactions on Circuits and Systems for Video Technology, vol. 30, no. 9, pp. 3000-3014, Sept. 2020

2019

JVCIR2019

Anti-forensics of Median Filtering and Contrast Enhancement

S. Sharma, H. Ravi, A.V. Subramanyam, S. Emmanuel

Journal of Visual Communication and Image Representation, vol. 66

JEI2019

CARF-Net: CNN attention and RNN fusion network for video-based person reidentification

K. Kansal, A.V. Subramanyam, D. Prasad

Journal of Electronic Imaging, vol. 28, no. 2

IEEE Access2019

HDRNet: Person Re-identification using Hybrid Sampling in Deep Reconstruction Network

K. Kansal, A.V. Subramanyam, M. Kankanhalli

IEEE Access, vol. 7, pp. 40856-40865

IEEE Access2019

Joint Spatial and Discrete Cosine Transform Domain based Counter Forensics for Adaptive Contrast Enhancement

A. Mehrish, A.V. Subramanyam, S. Emmanuel

IEEE Access, vol. 7, pp. 27183-27195

JEI2019

Airborne Visual Tracking and Re-Identification System

K. Saini, K. Kansal, A.V. Subramanyam

JEI, vol. 28, no. 2

JEI2019

Online Single and Multiple Analysis Dictionary Learning based approach for Visual Object Tracking

D. Sitani, A.V. Subramanyam, A. Majumdar

Journal of Electronic Imaging, vol. 28, no. 1

IEEE SPL2019

Robust Discriminative Sub-space Learning for Person Reidentification

A.V. Subramanyam, R. Ahuja, V. Gupta

IEEE Signal Processing Letters, vol. 26, no. 1, pp. 154-158

ICIP2019

Attentional Road Safety Networks

Sonu Gupta, Deepak Srivatsav, A V Subramanyam, Ponnurangam Kumaraguru

IEEE International Conference on Image Processing (ICIP), pp. 1600-1604 · Poster

BigMM2019

Autoencoder Ensemble for Person Re-Identification

Kajal Kansal, A V Subramanyam

IEEE International Conference on Multimedia Big Data (BigMM), pp. 257-261 · Oral

BigMM2019

Image Corpus Representative Summarization

Anurag Singh, Lakshay Virmani, A V Subramanyam

IEEE International Conference on Multimedia Big Data (BigMM), pp. 21-29 · Oral

COMSNETS2019

LSTM Guided Modulation Classification and Experimental Validation for Sub-Nyquist Rate Wideband Spectrum Sensing

S. Chandhok, H. Joshi, S. Darak, and A.V. Subramanyam

International Conference on Communication Systems & Networks (COMSNETS) · Poster

2018

Signal Proc.: Image Comm.2018

Robust PRNU estimation from probabilistic raw measurements

A. Mehrish, A.V. Subramanyam, S. Emmanuel

Signal Processing: Image Communication, vol. 66, pp. 30-41

SMC2018

Transfer Learning of Spatio-Temporal Information using 3D-CNN for Person Re-identification

K. Kansal, and A.V. Subramanyam

IEEE International Conference on Systems, Man, and Cybernetics (SMC), pp. 923-928 · Oral

COMSNETS2018

Use of facial landmarks for adaptive compression of videos on mobile devices

R. Banerjee, G. Chikara, V. Naik, A.V. Subramanyam, and K. Dey

International Conference on Communication Systems & Networks (COMSNETS), pp. 320-327 · Oral

2017

ACM MM2017

#VisualHashtags: Visual Summarization of Social Media Events Using Mid-Level Visual Elements

S. Goel, S. Ahuja, A.V. Subramanyam, and P. Kumaraguru

ACM International Conference on Multimedia (ACM MM), pp. 1434-1442 · Poster

ICME2017

Multimedia Signatures for Vehicle Forensics

A. Mehrish, A.V. Subramanyam, and M.S. Kankanhalli

IEEE International Conference on Multimedia and Expo (ICME), pp. 685-690 · Poster

ICIP2017

Online SVM and Backward Model Validation Based Visual Tracking

D. Mullick, A.V. Subramanyam, and S. Emmanuel

IEEE International Conference on Image Processing (ICIP), pp. 4327-4331 · Poster

2016

IEEE SPL2016

Sensor Pattern Noise Estimation Using Probabilistically Estimated RAW Values

A. Mehrish, A.V. Subramanyam, S. Emmanuel

IEEE Signal Processing Letters, vol. 23, no. 5, pp. 693-697

ACM TOMM2016

Forensic Analysis of Linear and Non Linear Image Filtering using Quantization Noise

H. Ravi, A.V. Subramanyam, S. Emmanuel

ACM Transactions on Multimedia Computing, Communications, and Applications (TOMM), vol. 12, no. 3, pp. 39:1-39:23

WIFS2016

Anti-Forensic Technique for Median Filtering using L1-L2 TV Model

S. Sharma, A.V. Subramanyam, M. Jain, A. Mehrish and S. Emmanuel

IEEE International Workshop on Information Forensics and Security (WIFS). Pages: 6 · Oral

SocInfo2016

PicHunt: Social Media Image Retrieval for Improved Law Enforcement

S. Goel, N. Sachdeva, P. Kumaraguru, A.V. Subramanyam and D. Gupta

International Conference on Social Informatics (SocInfo), pp. 206-223 · Poster

MMSP2016

Face Video Based Touchless Blood Pressure and Heart Rate Estimation

M. Jain, S. Deb, A.V. Subramanyam

IEEE International Workshop on Multimedia Signal Processing (MMSP). Pages: 5 · Poster

TENCON2016

Video inpainting detection and localization using inconsistencies in optical flow

Shobhita Saxena, A.V. Subramanyam, Hareesh Ravi

IEEE Region 10 Conference (TENCON), Singapore, pp. 1361-1365

Proposes a two-stage passive method that uses optical flow consistency to detect whether a video has been inpainted and to temporally localize the forgery, tested on PETS and SULFA.

2015

IEEE SPL2015

ACE - An Effective Anti-forensic Contrast Enhancement Technique

H. Ravi, A.V. Subramanyam, S. Emmanuel

IEEE Signal Processing Letters, vol. 23, no. 2, pp. 212-216

ICIP2015

Spatial domain quantization noise based image filtering detection

H. Ravi, A.V. Subramanyam, S. Emmanuel

IEEE International Conference on Image Processing (ICIP), Quebec City, Canada, pp. 1180-1184 · Oral

2014

MTAP2014

Partially Compress-Encrypted Domain Robust JPEG Image Watermarking

A.V. Subramanyam and S. Emmanuel

Multimedia Tools and Applications, vol. 71, no. 3, pp. 1311-1331

ICIP2014

Compression Noise Based Video Forgery Detection

H. Ravi, A.V. Subramanyam, Gaurav Gupta and B. Avinash Kumar

IEEE International Conference on Image Processing (ICIP), Paris, France, pp. 5353-5356 · Poster

2013

SMC2013

Cryptanalysis of a Digital Watermarking Scheme Based on Support Vector Regression

M. Siddula, S. Sanadhya and A.V. Subramanyam

IEEE International Conference on Systems, Man and Cybernetics (SMC), Manchester, UK, pp. 1554-1559

ICASSP2013

Pixel Estimation Based Video Forgery Detection

A.V. Subramanyam and S. Emmanuel

IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), Vancouver, Canada, pp. 3038-3042 · Poster

2012

MMSP2012

Video Forgery Detection using HOG and Video Compression Properties

A.V. Subramanyam and S. Emmanuel

IEEE International Workshop on Multimedia Signal Processing (MMSP), Banff, Canada, pp. 89-94 · Poster

SMC2012

Audio Watermarking in Partially Compressed-Encrypted Domain

A.V. Subramanyam and S. Emmanuel

IEEE International Conference on Systems, Man and Cybernetics (SMC), Seoul, South Korea, pp. 2867-2872

2011

IEEE TMM2011

Robust Watermarking of Compressed and Encrypted JPEG2000 Images

A.V. Subramanyam, S. Emmanuel and M.S. Kankanhalli

IEEE Transactions on Multimedia, vol. 14, no. 3, pp. 703-716

LNCS TDHMS2011

Robust Watermarking of Compressed JPEG images in Encrypted Domain

A.V. Subramanyam and S. Emmanuel

Transactions on Data Hiding and Multimedia Security, LNCS, vol. 6730, pp. 37-57

SIGMAP2011

Context Based Watermarking of Secure JPEG-LS Images

A.V. Subramanyam and S. Emmanuel

International Conference on Signal Processing and Multimedia Applications(SIGMAP), Seville, Spain

2010

ICME2010

Compressed Encrypted Domain JPEG2000 Image Watermarking

A.V. Subramanyam, S. Emmanuel and M.S. Kankanhalli

IEEE International Conference Multimedia and Expo (ICME), Singapore, pp. 1315-1320 · Poster

2009

IEEE TIFS2009

Joint Watermarking Scheme for Multiparty Multilevel DRM Architecture

T. Thomas, S. Emmanuel, A.V. Subramanyam and M.S. Kankanhalli

IEEE Transactions on Information Forensics and Security, vol. 4, no. 4, pp. 758-767