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Multimodal Large Language Models (MLLMs) have shown promising progress in understanding and analyzing video content. However, processing long videos remains a significant challenge constrained by LLM's context size. To address this…

Video Large Language Models (Video-LLMs) excel at understanding videos in-context, provided they have full access to the video when answering queries. However, these models face challenges in streaming scenarios where hour-long videos must…

计算机视觉与模式识别 · 计算机科学 2025-10-21 Vaggelis Dorovatas , Soroush Seifi , Gunshi Gupta , Rahaf Aljundi

With recent advancements in video backbone architectures, combined with the remarkable achievements of large language models (LLMs), the analysis of long-form videos spanning tens of minutes has become both feasible and increasingly…

计算机视觉与模式识别 · 计算机科学 2026-02-23 Yuxiao Chen , Jue Wang , Zhikang Zhang , Jingru Yi , Xu Zhang , Yang Zou , Zhaowei Cai , Jianbo Yuan , Xinyu Li , Hao Yang , Davide Modolo

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…

计算机视觉与模式识别 · 计算机科学 2025-09-30 Shenghao Fu , Qize Yang , Yuan-Ming Li , Xihan Wei , Xiaohua Xie , Wei-Shi Zheng

Long-form video question answering requires reasoning over extended temporal contexts, making frame selection critical for large vision-language models (LVLMs) bound by finite context windows. Existing methods face a sharp trade-off:…

计算机视觉与模式识别 · 计算机科学 2026-03-20 Dan Ben-Ami , Gabriele Serussi , Kobi Cohen , Chaim Baskin

Large vision--language models (VLMs) are increasingly applied to long-video question answering, yet inference is often bottlenecked by the number of input frames and resulting visual tokens. Naive sparse sampling can miss decisive moments,…

计算机视觉与模式识别 · 计算机科学 2026-05-08 Yuning Huang , Xiaoyu Ji , Joseph Huang , Yichi Zhang , Fengqing Zhu

Recent advancements in video large language models (Video LLMs) have significantly advanced the field of video question answering (VideoQA). While existing methods perform well on short videos, they often struggle with long-range reasoning…

计算机视觉与模式识别 · 计算机科学 2025-07-02 Mustafa Chasmai , Gauri Jagatap , Gouthaman KV , Grant Van Horn , Subhransu Maji , Andrea Fanelli

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…

计算机视觉与模式识别 · 计算机科学 2025-11-25 Zhucun Xue , Jiangning Zhang , Xurong Xie , Yuxuan Cai , Yong Liu , Xiangtai Li , Dacheng Tao

Large Multimodal Models (LMMs) have demonstrated impressive performance in short video understanding tasks but face great challenges when applied to long video understanding. In contrast, Large Language Models (LLMs) exhibit outstanding…

计算机视觉与模式识别 · 计算机科学 2024-10-03 Hongchen Wei , Zhenzhong Chen

Understanding long-form videos remains a significant challenge for vision--language models (VLMs) due to their extensive temporal length and high information density. Most current multimodal large language models (MLLMs) rely on uniform…

计算机视觉与模式识别 · 计算机科学 2025-10-06 Xian Zhang , Zexi Wu , Zinuo Li , Hongming Xu , Luqi Gong , Farid Boussaid , Naoufel Werghi , Mohammed Bennamoun

This paper presents VideoStreaming, an advanced vision-language large model (VLLM) for video understanding, that capably understands arbitrary-length video with a constant number of video tokens streamingly encoded and adaptively selected.…

计算机视觉与模式识别 · 计算机科学 2024-05-28 Rui Qian , Xiaoyi Dong , Pan Zhang , Yuhang Zang , Shuangrui Ding , Dahua Lin , Jiaqi Wang

Key frame selection in video understanding presents significant challenges. Traditional top-K selection methods, which score frames independently, often fail to optimize the selection as a whole. This independent scoring frequently results…

计算机视觉与模式识别 · 计算机科学 2025-12-15 Yiqing Yang , Kin-Man Lam

Seeing clearly with high resolution is a foundation of Large Multimodal Models (LMMs), which has been proven to be vital for visual perception and reasoning. Existing works usually employ a straightforward resolution upscaling method, where…

计算机视觉与模式识别 · 计算机科学 2024-06-17 Yi-Fan Zhang , Qingsong Wen , Chaoyou Fu , Xue Wang , Zhang Zhang , Liang Wang , Rong Jin

While Video Large Language Models (Video-LLMs) have shown significant potential in multimodal understanding and reasoning tasks, how to efficiently select the most informative frames from videos remains a critical challenge. Existing…

计算机视觉与模式识别 · 计算机科学 2026-03-18 Shihao Wang , Guo Chen , De-an Huang , Zhiqi Li , Minghan Li , Guilin Liu , Jose M. Alvarez , Lei Zhang , Zhiding Yu

Long video understanding is inherently challenging for vision-language models (VLMs) because of the extensive number of frames. With each video frame typically expanding into tens or hundreds of tokens, the limited context length of large…

计算机视觉与模式识别 · 计算机科学 2026-04-17 Zheyu Zhang , Ziqi Pang , Shixing Chen , Xiang Hao , Vimal Bhat , Yu-Xiong Wang

Multimodal large language models (MLLMs) have enabled open-world visual understanding by injecting visual input as extra tokens into large language models (LLMs) as contexts. However, when the visual input changes from a single image to a…

计算机视觉与模式识别 · 计算机科学 2025-03-03 Xi Tang , Jihao Qiu , Lingxi Xie , Yunjie Tian , Jianbin Jiao , Qixiang Ye

Recent advances in video processing utilizing deep learning primitives achieved breakthroughs in fundamental problems in video analysis such as frame classification and object detection enabling an array of new applications. In this paper…

数据库 · 计算机科学 2020-02-26 Nick Koudas , Raymond Li , Ioannis Xarchakos

Long-form video understanding is essential for various applications such as video retrieval, summarizing, and question answering. Yet, traditional approaches demand substantial computing power and are often bottlenecked by GPU memory. To…

计算机视觉与模式识别 · 计算机科学 2025-03-19 Saket Gurukar , Asim Kadav

Frame selection is crucial due to high frame redundancy and limited context windows when applying Large Vision-Language Models (LVLMs) to long videos. Current methods typically select frames with high relevance to a given query, resulting…

计算机视觉与模式识别 · 计算机科学 2026-03-18 Wang Chen , Yuhui Zeng , Yongdong Luo , Tianyu Xie , Luojun Lin , Jiayi Ji , Yan Zhang , Xiawu Zheng

Long-form video understanding presents significant challenges due to extensive temporal-spatial complexity and the difficulty of question answering under such extended contexts. While Large Language Models (LLMs) have demonstrated…

计算机视觉与模式识别 · 计算机科学 2025-11-04 Xiaoyi Zhang , Zhaoyang Jia , Zongyu Guo , Jiahao Li , Bin Li , Houqiang Li , Yan Lu