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While learned video codecs have demonstrated great promise, they have yet to achieve sufficient efficiency for practical deployment. In this work, we propose several novel ideas for learned video compression which allow for improved…

Image and Video Processing · Electrical Eng. & Systems 2021-10-06 Oren Rippel , Alexander G. Anderson , Kedar Tatwawadi , Sanjay Nair , Craig Lytle , Lubomir Bourdev

Training video-language models is often prohibitively expensive due to the high cost of processing long frame sequences and the limited availability of annotated long videos. We present VideoWeave, a simple yet effective approach to improve…

Computer Vision and Pattern Recognition · Computer Science 2026-01-13 Zane Durante , Silky Singh , Arpandeep Khatua , Shobhit Agarwal , Reuben Tan , Yong Jae Lee , Jianfeng Gao , Ehsan Adeli , Li Fei-Fei

Counterfactual explanations (CFEs) are minimal and semantically meaningful modifications of the input of a model that alter the model predictions. They highlight the decisive features the model relies on, providing contrastive…

Computer Vision and Pattern Recognition · Computer Science 2025-11-26 Chao Wang , Chengan Che , Xinyue Chen , Sophia Tsoka , Luis C. Garcia-Peraza-Herrera

Recently, Video-Language Models (VideoLMs) have demonstrated remarkable capabilities, offering significant potential for flexible and powerful video query systems. These models typically rely on Vision Transformers (ViTs), which process…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-09-11 Jinwoo Hwang , Daeun Kim , Sangyeop Lee , Yoonsung Kim , Guseul Heo , Hojoon Kim , Yunseok Jeong , Tadiwos Meaza , Eunhyeok Park , Jeongseob Ahn , Jongse Park

Though action recognition in videos has achieved great success recently, it remains a challenging task due to the massive computational cost. Designing lightweight networks is a possible solution, but it may degrade the recognition…

Computer Vision and Pattern Recognition · Computer Science 2020-02-11 Wenhao Wu , Dongliang He , Xiao Tan , Shifeng Chen , Yi Yang , Shilei Wen

Inspired by recent advances in neural machine translation, that jointly align and translate using encoder-decoder networks equipped with attention, we propose an attentionbased LSTM model for human activity recognition. Our model jointly…

Computer Vision and Pattern Recognition · Computer Science 2017-09-01 Atousa Torabi , Leonid Sigal

Large Multimodal Models (LMMs) uniformly perceive video frames, creating computational inefficiency for videos with inherently varying temporal information density. This paper present \textbf{Quicksviewer}, an LMM with new perceiving…

Computer Vision and Pattern Recognition · Computer Science 2025-04-22 Ji Qi , Yuan Yao , Yushi Bai , Bin Xu , Juanzi Li , Zhiyuan Liu , Tat-Seng Chua

Real-time low-light image enhancement on mobile and embedded devices requires models that balance visual quality and computational efficiency. Existing deep learning methods often rely on large networks and labeled datasets, limiting their…

Computer Vision and Pattern Recognition · Computer Science 2026-05-12 Guangrui Bai , Hailong Yan , Wenhai Liu , Yahui Deng , Erbao Dong

Document parsing is a fine-grained task where image resolution significantly impacts performance. While advanced research leveraging vision-language models benefits from high-resolution input to boost model performance, this often leads to…

Computer Vision and Pattern Recognition · Computer Science 2026-04-06 Cheng Cui , Ting Sun , Suyin Liang , Tingquan Gao , Zelun Zhang , Jiaxuan Liu , Xueqing Wang , Changda Zhou , Hongen Liu , Manhui Lin , Yue Zhang , Yubo Zhang , Jing Zhang , Jun Zhang , Xing Wei , Yi Liu , Dianhai Yu , Yanjun Ma

Video action recognition (VAR) is a primary task of video understanding, and untrimmed videos are more common in real-life scenes. Untrimmed videos have redundant and diverse clips containing contextual information, so sampling dense clips…

Computer Vision and Pattern Recognition · Computer Science 2021-04-22 Yunyan Hong , Ailing Zeng , Min Li , Cewu Lu , Li Jiang , Qiang Xu

Large models such as Vision Transformers (ViTs) have demonstrated remarkable superiority over smaller architectures like ResNet in few-shot classification, owing to their powerful representational capacity. However, fine-tuning such large…

Computer Vision and Pattern Recognition · Computer Science 2026-01-16 Wenwen Liao , Hang Ruan , Jianbo Yu , Bing Song , YuansongWang , Xiaofeng Yang

Recent advances in multimodal large language models (MLLMs) have enabled impressive progress in vision-language understanding, yet their high computational cost limits deployment in resource-constrained scenarios such as personal…

Computer Vision and Pattern Recognition · Computer Science 2026-04-08 Quoc-Huy Trinh , Mustapha Abdullahi , Bo Zhao , Debesh Jha

In this study, we identify the inefficient attention phenomena in Large Vision-Language Models (LVLMs), notably within prominent models like LLaVA-1.5, QwenVL-Chat and Video-LLaVA. We find out that the attention computation over visual…

Computer Vision and Pattern Recognition · Computer Science 2024-09-04 Liang Chen , Haozhe Zhao , Tianyu Liu , Shuai Bai , Junyang Lin , Chang Zhou , Baobao Chang

Video streaming analytics is a crucial workload for vision-language model serving, but the high cost of multimodal inference limits scalability. Prior systems reduce inference cost by exploiting temporal and spatial redundancy in video…

Distributed, Parallel, and Cluster Computing · Computer Science 2026-04-10 Yulin Zou , Yan Chen , Wenyan Chen , JooYoung Park , Shivaraman Nitin , Luo Tao , Francisco Romero , Dmitrii Ustiugov

Recent vision-language (VL) studies have shown remarkable progress by learning generic representations from massive image-text pairs with transformer models and then fine-tuning on downstream VL tasks. While existing research has been…

Computer Vision and Pattern Recognition · Computer Science 2021-08-11 Jianfeng Wang , Xiaowei Hu , Pengchuan Zhang , Xiujun Li , Lijuan Wang , Lei Zhang , Jianfeng Gao , Zicheng Liu

In this work we present a new efficient approach to Human Action Recognition called Video Transformer Network (VTN). It leverages the latest advances in Computer Vision and Natural Language Processing and applies them to video…

Computer Vision and Pattern Recognition · Computer Science 2019-05-22 Alexander Kozlov , Vadim Andronov , Yana Gritsenko

This paper addresses the critical and underexplored challenge of long video understanding with low computational budgets. We propose LongVideo-R1, an active, reasoning-equipped multimodal large language model (MLLM) agent designed for…

Computer Vision and Pattern Recognition · Computer Science 2026-04-16 Jihao Qiu , Lingxi Xie , Xinyue Huo , Qi Tian , Qixiang Ye

Video-based person recognition achieves robust identification by integrating face, body, and gait. However, current systems waste computational resources by processing all modalities with fixed heavyweight ensembles regardless of input…

Computer Vision and Pattern Recognition · Computer Science 2026-03-13 Yuyang Ji , Yixuan Shen , Kien Nguyen , Lifeng Zhou , Feng Liu

Large multimodal models (LMMs) have recently demonstrated remarkable performance in video question answering (VideoQA), yet reasoning over video remains challenging due to high inference cost and diluted information. Keyframe selection…

Computer Vision and Pattern Recognition · Computer Science 2026-03-17 Minchan Kwon , Hyounguk Shon , Junmo Kim

Recently, with the rise of web videos, managing and understanding large-scale video datasets has become increasingly important. Video Large Language Models (VideoLLMs) have emerged in recent years due to their strong video understanding…

Computer Vision and Pattern Recognition · Computer Science 2024-08-13 Hao Liang , Jiapeng Li , Tianyi Bai , Xijie Huang , Linzhuang Sun , Zhengren Wang , Conghui He , Bin Cui , Chong Chen , Wentao Zhang