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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

Videos convey rich information. Dynamic spatio-temporal relationships between people/objects, and diverse multimodal events are present in a video clip. Hence, it is important to develop automated models that can accurately extract such…

Computation and Language · Computer Science 2020-05-14 Hyounghun Kim , Zineng Tang , Mohit Bansal

Employing Multimodal Large Language Models (MLLMs) for long video understanding remains a challenging problem due to the dilemma between the substantial number of video frames (i.e., visual tokens) versus the limited context length of…

Computer Vision and Pattern Recognition · Computer Science 2025-06-02 Bo Fang , Wenhao Wu , Qiangqiang Wu , Yuxin Song , Antoni B. Chan

We propose KFS-Bench, the first benchmark for key frame sampling in long video question answering (QA), featuring multi-scene annotations to enable direct and robust evaluation of sampling strategies. Key frame sampling is crucial for…

Computer Vision and Pattern Recognition · Computer Science 2025-12-17 Zongyao Li , Kengo Ishida , Satoshi Yamazaki , Xiaotong Ji , Jianquan Liu

Large multimodal models (LMMs) are processing increasingly longer and richer inputs. Albeit the progress, few public benchmark is available to measure such development. To mitigate this gap, we introduce LongVideoBench, a question-answering…

Computer Vision and Pattern Recognition · Computer Science 2024-07-23 Haoning Wu , Dongxu Li , Bei Chen , Junnan Li

Efficiently understanding long-form videos remains a fundamental challenge for multimodal large language models (MLLMs). In this paper, we present MLLM-Sampler Joint Evolution (MSJoE), a novel framework that jointly evolves the MLLM and a…

Computer Vision and Pattern Recognition · Computer Science 2026-02-27 Wenhui Tan , Xiaoyi Yu , Jiaze Li , Yijing Chen , Jianzhong Ju , Zhenbo Luo , Ruihua Song , Jian Luan

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…

Computer Vision and Pattern Recognition · Computer Science 2025-07-02 Mustafa Chasmai , Gauri Jagatap , Gouthaman KV , Grant Van Horn , Subhransu Maji , Andrea Fanelli

Accurate and efficient Video Quality Assessment (VQA) has long been a key research challenge. Current mainstream VQA methods typically improve performance by pretraining on large-scale classification datasets (e.g., ImageNet, Kinetics-400),…

Computer Vision and Pattern Recognition · Computer Science 2025-10-10 Yachun Mi , Yu Li , Yanting Li , Chen Hui , Tong Zhang , Zhixuan Li , Chenyue Song , Wei Yang Bryan Lim , Shaohui Liu

The sequential structure of videos poses a challenge to the ability of multimodal large language models (MLLMs) to locate multi-frame evidence and conduct multimodal reasoning. However, existing video benchmarks mainly focus on…

Computer Vision and Pattern Recognition · Computer Science 2025-06-05 Kejian Zhu , Zhuoran Jin , Hongbang Yuan , Jiachun Li , Shangqing Tu , Pengfei Cao , Yubo Chen , Kang Liu , Jun Zhao

In recent years, the development of Large Language Models (LLMs) has significantly advanced, extending their capabilities to multimodal tasks through Multimodal Large Language Models (MLLMs). However, video understanding remains a…

Training vision-language models on cognitively-plausible amounts of data requires rethinking how models integrate multimodal information. Within the constraints of the Vision track for the BabyLM Challenge 2025, we propose a lightweight…

Artificial Intelligence · Computer Science 2025-10-10 Bianca-Mihaela Ganescu , Suchir Salhan , Andrew Caines , Paula Buttery

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:…

Computer Vision and Pattern Recognition · Computer Science 2026-03-20 Dan Ben-Ami , Gabriele Serussi , Kobi Cohen , Chaim Baskin

Long-form video understanding, characterized by long-range temporal dependencies and multiple events, remains a challenge. Existing methods often rely on static reasoning or external visual-language models (VLMs), which face issues like…

Computer Vision and Pattern Recognition · Computer Science 2025-08-29 Yuan Xie , Tianshui Chen , Zheng Ge , Lionel Ni

Recent advances of large multi-modality models (LMM) have greatly improved the ability of image quality assessment (IQA) method to evaluate and explain the quality of visual content. However, these advancements are mostly focused on overall…

Computer Vision and Pattern Recognition · Computer Science 2024-07-25 Chaofeng Chen , Sensen Yang , Haoning Wu , Liang Liao , Zicheng Zhang , Annan Wang , Wenxiu Sun , Qiong Yan , Weisi Lin

The past decade has witnessed great success in applying deep learning to enhance the quality of compressed video. However, the existing approaches aim at quality enhancement on a single frame, or only using fixed neighboring frames. Thus…

Computer Vision and Pattern Recognition · Computer Science 2019-08-13 Ren Yang , Xiaoyan Sun , Mai Xu , Wenjun Zeng

Effective content moderation is essential for video platforms to safeguard user experience and uphold community standards. While traditional video classification models effectively handle well-defined moderation tasks, they struggle with…

Machine Learning · Computer Science 2025-07-24 Zixuan Wang , Jinghao Shi , Hanzhong Liang , Xiang Shen , Vera Wen , Zhiqian Chen , Yifan Wu , Zhixin Zhang , Hongyu Xiong

Multi-modal large language models (MLLMs) have demonstrated considerable potential across various downstream tasks that require cross-domain knowledge. MLLMs capable of processing videos, known as Video-MLLMs, have attracted broad interest…

Computer Vision and Pattern Recognition · Computer Science 2024-08-27 Jiajun Fei , Dian Li , Zhidong Deng , Zekun Wang , Gang Liu , Hui Wang

Multi-modal large language models (MLLMs) have advanced general-purpose video understanding but struggle with long, high-resolution videos -- they process every pixel equally in their vision transformers (ViTs) or LLMs despite significant…

Computer Vision and Pattern Recognition · Computer Science 2026-03-13 Baifeng Shi , Stephanie Fu , Long Lian , Hanrong Ye , David Eigen , Aaron Reite , Boyi Li , Jan Kautz , Song Han , David M. Chan , Pavlo Molchanov , Trevor Darrell , Hongxu Yin

Understanding long-form video content presents significant challenges due to its temporal complexity and the substantial computational resources required. In this work, we propose an agent-based approach to enhance both the efficiency and…

Computer Vision and Pattern Recognition · Computer Science 2024-10-29 Sullam Jeoung , Goeric Huybrechts , Bhavana Ganesh , Aram Galstyan , Sravan Bodapati

The advent of large vision-language models (LVLMs) has spurred research into their applications in multi-modal contexts, particularly in video understanding. Traditional VideoQA benchmarks, despite providing quantitative metrics, often fail…

Computer Vision and Pattern Recognition · Computer Science 2024-10-31 Xinyu Fang , Kangrui Mao , Haodong Duan , Xiangyu Zhao , Yining Li , Dahua Lin , Kai Chen