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Sayan Nag

15 accepted papers

2026

Object-WIPER: Training-Free Object and Associated Effect Removal in Videos

CVPR 2026

In this paper, we introduce Object-WIPER, a training-free framework for removing dynamic objects and their associated visual effects from videos, and inpainting them with semantically consistent and temporally coherent content. Our approach leverages a pre-trained text-to-video diffusion transformer

Cited by 0SourceScholar
2026

SliderEdit: Continuous Image Editing with Fine-Grained Instruction Control

CVPR 2026

Instruction-based image editing models have recently achieved impressive performance, enabling complex edits to an input image from a multi-instruction prompt. However, these models apply each instruction in the prompt with a fixed strength, limiting the user's ability to precisely and continuously

Cited by 0SourcecodeScholar
2025

AURELIA: Test-time Reasoning Distillation in Audio-Visual LLMs

ICCV 2025poster

Recent advancements in reasoning optimization have greatly enhanced the performance of large language models (LLMs). However, existing work fails to address the complexities of audio-visual scenarios, underscoring the need for further research. In this paper, we introduce AURELIA, a novel actor-crit…

2025

AVTrustBench: Assessing and Enhancing Reliability and Robustness in Audio-Visual LLMs

ICCV 2025poster

With the rapid advancement of Multi-modal Large Language Models (MLLMs), several diagnostic benchmarks have recently been developed to assess these models' multimodal reasoning proficiency. However, these benchmarks are restricted to assessing primarily the visual aspect and do not examine the holis…

Cited by 0SourcePDFScholar
2025

EgoAdapt: Adaptive Multisensory Distillation and Policy Learning for Efficient Egocentric Perception

ICCV 2025poster

Modern perception models, particularly those designed for multisensory egocentric tasks, have achieved remarkable performance but often come with substantial computational costs. These high demands pose challenges for real-world deployment, especially in resource-constrained environments. In this pa…

Cited by 0SourcePDFScholar
2025

Localizing Knowledge in Diffusion Transformers

NeurIPS 2025poster

Understanding how knowledge is distributed across the layers of generative models is crucial for improving interpretability, controllability, and adaptation. While prior work has explored knowledge localization in UNet-based architectures, Diffusion Transformer (DiT)-based models remain underexplore…

Cited by 0SourceScholar
2025

MAGNET: A Multi-agent Framework for Finding Audio-Visual Needles by Reasoning over Multi-Video Haystacks

NeurIPS 2025poster

Large multimodal models (LMMs) have shown remarkable progress in audiovisual understanding, yet they struggle with real-world scenarios that require complex reasoning across extensive video collections. Existing benchmarks for video question answering remain limited in scope, typically involving one…

Cited by 0SourceScholar
2024

Jack of All Tasks Master of Many: Designing General-Purpose Coarse-to-Fine Vision-Language Model

CVPR 2024highlight

The ability of large language models (LLMs) to process visual inputs has given rise to general-purpose vision systems unifying various vision-language (VL) tasks by instruction tuning. However due to the enormous diversity in input-output formats in the vision domain existing general-purpose models…

2024

MeLFusion: Synthesizing Music from Image and Language Cues using Diffusion Models

CVPR 2024highlight

Music is a universal language that can communicate emotions and feelings. It forms an essential part of the whole spectrum of creative media ranging from movies to social media posts. Machine learning models that can synthesize music are predominantly conditioned on textual descriptions of it. Inspi…

2024

Meerkat: Audio-Visual Large Language Model for Grounding in Space and Time

ECCV 2024poster

"Leveraging Large Language Models’ remarkable proficiency in text-based tasks, recent works on Multi-modal LLMs (MLLMs) extend them to other modalities like vision and audio. However, the progress in these directions has been mostly focused on tasks that only require a coarse-grained understanding o…

2023

EgoVLPv2: Egocentric Video-Language Pre-training with Fusion in the Backbone

ICCV 2023poster

Video-language pre-training (VLP) has become increasingly important due to its ability to generalize to various vision and language tasks. However, existing egocentric VLP frameworks utilize separate video and language encoders and learn task-specific cross-modal information only during fine-tuning,…

Cited by 98PDFcodeScholar
2023

Ideal: Improved Dense Local Contrastive Learning For Semi-Supervised Medical Image Segmentation

ICASSP 2023accepted

Due to the scarcity of labeled data, Contrastive Self-Supervised Learning (SSL) frameworks have lately shown great potential in several medical image analysis tasks. However, the existing contrastive mechanisms are sub-optimal for dense pixel-level segmentation tasks due to their inability to mine l…

Cited by 0SourceScholar
2022

Deciphering Environmental Air Pollution with Large Scale City Data

IJCAI 2022poster

Air pollution poses a serious threat to sustainable environmental conditions in the 21st century. Its importance in determining the health and living standards in urban settings is only expected to increase with time. Various factors ranging from artificial emissions to natural phenomena are known t…