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Recent progress in Large Multi-modal Models (LMMs) has enabled effective vision-language reasoning, yet the ability to understand video content remains constrained by suboptimal frame selection strategies. Existing approaches often rely on…

Computer Vision and Pattern Recognition · Computer Science 2025-06-03 Hosu Lee , Junho Kim , Hyunjun Kim , Yong Man Ro

Long video understanding remains challenging for multimodal large language models (MLLMs) due to limited context windows, which necessitate identifying sparse query-relevant video segments. However, existing methods predominantly localize…

Computer Vision and Pattern Recognition · Computer Science 2026-05-04 Ruoliu Yang , Chu Wu , Caifeng Shan , Ran He , Chaoyou Fu

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

Long video understanding is a complex task that requires both spatial detail and temporal awareness. While Vision-Language Models (VLMs) obtain frame-level understanding capabilities through multi-frame input, they suffer from information…

Computer Vision and Pattern Recognition · Computer Science 2025-04-10 Ziyi Wang , Haoran Wu , Yiming Rong , Deyang Jiang , Yixin Zhang , Yunlong Zhao , Shuang Xu , Bo XU

Multimodal Large Language Models (MLLMs) have achieved remarkable progress in vision-language tasks yet remain limited in long video understanding due to the limited context window. Consequently, prevailing approaches tend to rely on…

Computer Vision and Pattern Recognition · Computer Science 2025-12-30 Yang Ding , Yizhen Zhang , Xin Lai , Ruihang Chu , Yujiu Yang

Large video-language models (VLMs) have demonstrated promising progress in various video understanding tasks. However, their effectiveness in long-form video analysis is constrained by limited context windows. Traditional approaches, such…

Computer Vision and Pattern Recognition · Computer Science 2025-03-28 Shuming Liu , Chen Zhao , Tianqi Xu , Bernard Ghanem

Modern video summarization methods are based on deep neural networks that require a large amount of annotated data for training. However, existing datasets for video summarization are small-scale, easily leading to over-fitting of the deep…

Computer Vision and Pattern Recognition · Computer Science 2022-10-20 Li Haopeng , Ke Qiuhong , Gong Mingming , Tom Drummond

Vision-Language Models (VLMs) are able to process increasingly longer videos. Yet, important visual information is easily lost throughout the entire context and missed by VLMs. Also, it is important to design tools that enable…

Computation and Language · Computer Science 2026-01-09 Galann Pennec , Zhengyuan Liu , Nicholas Asher , Philippe Muller , Nancy F. Chen

Video Question Answering (Video QA) is a challenging video understanding task that requires models to comprehend entire videos, identify the most relevant information based on contextual cues from a given question, and reason accurately to…

Computer Vision and Pattern Recognition · Computer Science 2024-12-30 Roberto Amoroso , Gengyuan Zhang , Rajat Koner , Lorenzo Baraldi , Rita Cucchiara , Volker Tresp

We propose a novel framework for open-ended video question answering that enhances reasoning depth and robustness in complex real-world scenarios, as benchmarked on the CVRR-ES dataset. Existing Video-Large Multimodal Models (Video-LMMs)…

Computer Vision and Pattern Recognition · Computer Science 2025-07-21 Jun Xie , Zhaoran Zhao , Xiongjun Guan , Yingjian Zhu , Hongzhu Yi , Xinming Wang , Feng Chen , Zhepeng Wang

Video reasoning, which requires multi-step deduction across frames, remains a major challenge for multimodal large language models (MLLMs). While reinforcement learning (RL)-based methods enhance reasoning capabilities, they often rely on…

Computer Vision and Pattern Recognition · Computer Science 2025-11-21 Kun Ouyang , Yuanxin Liu , Linli Yao , Yishuo Cai , Hao Zhou , Jie Zhou , Fandong Meng , Xu Sun

Current methods for Video Moment Retrieval (VMR) struggle to align complex situations involving specific environmental details, character descriptions, and action narratives. To tackle this issue, we propose a Large Language Model-guided…

Computer Vision and Pattern Recognition · Computer Science 2024-05-22 Weijia Liu , Bo Miao , Jiuxin Cao , Xuelin Zhu , Bo Liu , Mehwish Nasim , Ajmal Mian

Despite recent advances in video understanding, the capabilities of Large Video Language Models (LVLMs) to perform video-based causal reasoning remains underexplored, largely due to the absence of relevant and dedicated benchmarks for…

Computer Vision and Pattern Recognition · Computer Science 2025-05-14 Pritam Sarkar , Ali Etemad

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

Modern Video Large Language Models (VLLMs) often rely on uniform frame sampling for video understanding, but this approach frequently fails to capture critical information due to frame redundancy and variations in video content. We propose…

Computer Vision and Pattern Recognition · Computer Science 2026-01-01 Pengyi Li , Irina Abdullaeva , Alexander Gambashidze , Andrey Kuznetsov , Ivan Oseledets

Video frame sampling is essential for efficient long-video understanding with Vision-Language Models (VLMs), since dense inputs are costly and often exceed context limits. Yet when only a small number of frames can be retained, existing…

Computer Vision and Pattern Recognition · Computer Science 2026-03-19 Mengyu Zhao , Di Fu , Yongyu Xie , Jiaxing Zhang , Zhigang Yuan , Shirin Jalali , Yong Cao

Long-context modeling has drawn more and more attention in the area of Large Language Models (LLMs). Continual training with long-context data becomes the de-facto method to equip LLMs with the ability to process long inputs. However, it…

Computation and Language · Computer Science 2025-10-14 Jianghao Chen , Junhong Wu , Yangyifan Xu , Jiajun Zhang

Large Language Models (LLMs) have demonstrated impressive in-context learning (ICL) capabilities from few-shot demonstration exemplars. While recent learning-based demonstration selection methods have proven beneficial to ICL by choosing…

Machine Learning · Computer Science 2024-10-16 Hui Liu , Wenya Wang , Hao Sun , Chris Xing Tian , Chenqi Kong , Xin Dong , Haoliang Li

Multimodal large language models (MLLMs) demonstrate exceptional performance in vision-language tasks, yet their processing of long videos is constrained by input context length and high computational costs. Sparse frame sampling thus…

Computer Vision and Pattern Recognition · Computer Science 2026-04-13 Jianxiang He , Meisheng Hong , Jungang Li , Weiyu Guo , Xuming Hu , Hui Xiong

Video Large Language Models (Video-LLMs) have made remarkable progress in video understanding tasks. However, they are constrained by the maximum length of input tokens, making it impractical to input entire videos. Existing frame selection…

Computer Vision and Pattern Recognition · Computer Science 2025-03-31 Sicheng Yu , Chengkai Jin , Huanyu Wang , Zhenghao Chen , Sheng Jin , Zhongrong Zuo , Xiaolei Xu , Zhenbang Sun , Bingni Zhang , Jiawei Wu , Hao Zhang , Qianru Sun