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Multimodal large language models (MLLMs) represent images and video frames as visual tokens. Scaling from single images to hour-long videos, however, inflates the token budget far beyond practical limits. Popular pipelines therefore either…

Computer Vision and Pattern Recognition · Computer Science 2025-11-25 Zirui Zhu , Hailun Xu , Yang Luo , Yong Liu , Kanchan Sarkar , Zhenheng Yang , Yang You

Long video understanding is still challenging for recent Large Video-Language Models (LVLMs) due to the conflict between long-form temporal understanding and detailed spatial perception. LVLMs with a uniform frame sampling mechanism, which…

Computer Vision and Pattern Recognition · Computer Science 2025-09-30 Shenghao Fu , Qize Yang , Yuan-Ming Li , Xihan Wei , Xiaohua Xie , Wei-Shi Zheng

Multimodal Large Language Models (MLLMs) have revolutionized video understanding, yet are still limited by context length when processing long videos. Recent methods compress videos by leveraging visual redundancy uniformly, yielding…

Computer Vision and Pattern Recognition · Computer Science 2025-06-10 Xiao Wang , Qingyi Si , Jianlong Wu , Shiyu Zhu , Li Cao , Liqiang Nie

We propose MR. Video, an agentic long video understanding framework that demonstrates the simple yet effective MapReduce principle for processing long videos: (1) Map: independently and densely perceiving short video clips, and (2) Reduce:…

Computer Vision and Pattern Recognition · Computer Science 2025-04-23 Ziqi Pang , Yu-Xiong Wang

Despite advances in Large Multi-modal Models, applying them to long and untrimmed video content remains challenging due to limitations in context length and substantial memory overhead. These constraints often lead to significant…

Computer Vision and Pattern Recognition · Computer Science 2025-03-24 Junho Kim , Hyunjun Kim , Hosu Lee , Yong Man Ro

Multimodal Large Language Models (MLLMs) face significant computational overhead when processing long videos due to the massive number of visual tokens required. To improve efficiency, existing methods primarily reduce redundancy by pruning…

Artificial Intelligence · Computer Science 2026-05-22 Bingjun Luo , Tony Wang , Chaoqi Chen , Xinpeng Ding

Multimodal Large Language Models (MLLMs) have significantly improved performance across various image-language applications. Recently, there has been a growing interest in adapting image pre-trained MLLMs for video-related tasks. However,…

Computer Vision and Pattern Recognition · Computer Science 2024-09-06 Mingze Gao , Jingyu Liu , Mingda Li , Jiangtao Xie , Qingbin Liu , Bo Zhao , Xi Chen , Hui Xiong

Ultra long video understanding remains an open challenge, as existing vision language models (VLMs) falter on such content due to limited context length and inefficient long term memory retention. To address this, recent works have…

Computer Vision and Pattern Recognition · Computer Science 2025-12-17 Hongbo Jin , Qingyuan Wang , Wenhao Zhang , Yang Liu , Sijie Cheng

Despite recent advances in Vision-Language Models (VLMs), long-video understanding remains a challenging problem. Although state-of-the-art long-context VLMs can process around 1000 input frames, they still struggle to effectively leverage…

Machine Learning · Computer Science 2025-07-04 Anurag Arnab , Ahmet Iscen , Mathilde Caron , Alireza Fathi , Cordelia Schmid

Despite the remarkable capabilities of text-to-image (T2I) generation models, real-world applications often demand fine-grained, iterative image editing that existing methods struggle to provide. Key challenges include granular instruction…

Computer Vision and Pattern Recognition · Computer Science 2025-08-26 Zihan Liang , Jiahao Sun , Haoran Ma

Large language models (LLMs) have shown remarkable text understanding capabilities, which have been extended as Video LLMs to handle video data for comprehending visual details. However, existing Video LLMs can only provide a coarse…

Computer Vision and Pattern Recognition · Computer Science 2023-12-01 Bin Huang , Xin Wang , Hong Chen , Zihan Song , Wenwu Zhu

Multimodal Large Language Models (MLLMs) perform well in video understanding but degrade on long videos due to fixed-length context and weak long-term dependency modeling. Retrieval-Augmented Generation (RAG) can expand knowledge…

Computer Vision and Pattern Recognition · Computer Science 2025-11-25 Zhucun Xue , Jiangning Zhang , Xurong Xie , Yuxuan Cai , Yong Liu , Xiangtai Li , Dacheng Tao

Despite advancements in multimodal large language models (MLLMs), current approaches struggle in medium-to-long video understanding due to frame and context length limitations. As a result, these models often depend on frame sampling, which…

Computer Vision and Pattern Recognition · Computer Science 2025-04-25 Shehreen Azad , Vibhav Vineet , Yogesh Singh Rawat

Video agentic models have advanced challenging video-language tasks. However, most agentic approaches still heavily rely on greedy parsing over densely sampled video frames, resulting in high computational cost. We present VideoSeek, a…

Computer Vision and Pattern Recognition · Computer Science 2026-03-23 Jingyang Lin , Jialian Wu , Jiang Liu , Ximeng Sun , Ze Wang , Xiaodong Yu , Jiebo Luo , Zicheng Liu , Emad Barsoum

Video question answering (VideoQA) is a challenging task that requires integrating spatial, temporal, and semantic information to capture the complex dynamics of video sequences. Although recent advances have introduced various approaches…

Computer Vision and Pattern Recognition · Computer Science 2026-04-08 Zhongyu Yang , Zuhao Yang , Shuo Zhan , Tan Yue , Wei Pang , Yingfang Yuan

Recent advancements in image understanding have benefited from the extensive use of web image-text pairs. However, video understanding remains a challenge despite the availability of substantial web video-text data. This difficulty…

Computer Vision and Pattern Recognition · Computer Science 2024-11-05 Wei Li , Hehe Fan , Yongkang Wong , Mohan Kankanhalli , Yi Yang

Long video question answering is a challenging task that involves recognizing short-term activities and reasoning about their fine-grained relationships. State-of-the-art video Large Language Models (vLLMs) hold promise as a viable solution…

Computer Vision and Pattern Recognition · Computer Science 2024-05-07 Reuben Tan , Ximeng Sun , Ping Hu , Jui-hsien Wang , Hanieh Deilamsalehy , Bryan A. Plummer , Bryan Russell , Kate Saenko

This paper presents a multi-agent perception-action exploration alliance, dubbed A4VL, for efficient long-video reasoning. A4VL operates in a multi-round perception-action exploration loop with a selection of VLM agents. In each round, the…

Computer Vision and Pattern Recognition · Computer Science 2026-03-23 Yichang Xu , Gaowen Liu , Ramana Rao Kompella , Tiansheng Huang , Sihao Hu , Fatih Ilhan , Selim Furkan Tekin , Zachary Yahn , Ling Liu

Recent advances in video understanding have been driven by MLLMs. But these MLLMs are good at analyzing short videos, while suffering from difficulties in understanding videos with a longer context. To address this difficulty, several agent…

Computer Vision and Pattern Recognition · Computer Science 2026-03-17 Zikang Wang , Boyu Chen , Zhengrong Yue , Yi Wang , Yu Qiao , Limin Wang , Yali Wang

Recent advances in large language models (LLMs) have enabled breakthroughs in many multimodal generation tasks, but a significant performance gap still exists in text-to-motion generation, where LLM-based methods lag far behind non-LLM…

Computer Vision and Pattern Recognition · Computer Science 2025-06-24 Chuhao Jin , Haosen Li , Bingzi Zhang , Che Liu , Xiting Wang , Ruihua Song , Wenbing Huang , Ying Qin , Fuzheng Zhang , Di Zhang
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