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Long video understanding requires more than large context windows. It also needs a memory mechanism that decides what visual evidence to retain, keeps it searchable over long horizons, and grounds later reasoning in recoverable observations…

Computer Vision and Pattern Recognition · Computer Science 2026-05-19 Aiden Yiliu Li , Nels Numan , Anthony Steed

Recent advances in Multimodal Large Language Models have greatly improved visual understanding and reasoning, yet their quadratic attention and offline training protocols make them ill-suited for streaming settings where frames arrive…

Computer Vision and Pattern Recognition · Computer Science 2026-02-26 Yulin Zhang , Cheng Shi , Sibei Yang

Multimodal Large Language Models (MLLMs) have shown strong capabilities in image understanding, motivating recent efforts to extend them to video reasoning. However, existing Video LLMs struggle in online streaming scenarios, where long…

Computer Vision and Pattern Recognition · Computer Science 2026-03-17 Zifan Han , Hongbo Sun , Jinglin Xu , Canhui Tang , Yulong Lei , Xuchong Zhang , Hongbin Sun , Zhongjiang He , Hao Sun

Video understanding tasks have traditionally been modeled by two separate architectures, specially tailored for two distinct tasks. Sequence-based video tasks, such as action recognition, use a video backbone to directly extract…

Computer Vision and Pattern Recognition · Computer Science 2023-03-31 Yucheng Zhao , Chong Luo , Chuanxin Tang , Dongdong Chen , Noel Codella , Zheng-Jun Zha

Real-time understanding of continuous video streams is essential for interactive assistants and multimodal agents operating in dynamic environments. However, most existing video reasoning approaches follow a batch paradigm that defers…

Computer Vision and Pattern Recognition · Computer Science 2026-03-16 Zikang Liu , Longteng Guo , Handong Li , Ru Zhen , Xingjian He , Ruyi Ji , Xiaoming Ren , Yanhao Zhang , Haonan Lu , Jing Liu

Devising intelligent agents able to live in an environment and learn by observing the surroundings is a longstanding goal of Artificial Intelligence. From a bare Machine Learning perspective, challenges arise when the agent is prevented…

Computer Vision and Pattern Recognition · Computer Science 2022-04-27 Matteo Tiezzi , Simone Marullo , Lapo Faggi , Enrico Meloni , Alessandro Betti , Stefano Melacci

In this paper we propose a new evaluation challenge and direction in the area of High-level Video Understanding. The challenge we are proposing is designed to test automatic video analysis and understanding, and how accurately systems can…

Artificial Intelligence · Computer Science 2020-09-15 Keith Curtis , George Awad , Shahzad Rajput , Ian Soboroff

Video recognition remains an open challenge, requiring the identification of diverse content categories within videos. Mainstream approaches often perform flat classification, overlooking the intrinsic hierarchical structure relating…

Computer Vision and Pattern Recognition · Computer Science 2024-05-29 Rui Zhang , Shuailong Li , Junxiao Xue , Feng Lin , Qing Zhang , Xiao Ma , Xiaoran Yan

Long-form video understanding remains challenging due to the extended temporal structure and dense multimodal cues. Despite recent progress, many existing approaches still rely on hand-crafted reasoning pipelines or employ token-consuming…

Computer Vision and Pattern Recognition · Computer Science 2026-03-31 Yufei Yin , Qianke Meng , Minghao Chen , Jiajun Ding , Zhenwei Shao , Zhou Yu

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…

Computer Vision and Pattern Recognition · Computer Science 2025-10-21 Vaggelis Dorovatas , Soroush Seifi , Gunshi Gupta , Rahaf Aljundi

As embodied intelligence advances toward real-world deployment, the ability to continuously perceive and reason over streaming visual inputs becomes essential. In such settings, an agent must maintain situational awareness of its…

Computer Vision and Pattern Recognition · Computer Science 2025-12-05 Yifei Wang , Zhenkai Li , Tianwen Qian , Huanran Zheng , Zheng Wang , Yuqian Fu , Xiaoling Wang

Online Video Large Language Models (VideoLLMs) play a critical role in supporting responsive, real-time interaction. Existing methods focus on streaming perception, lacking a synchronized logical reasoning stream. However, directly applying…

Computer Vision and Pattern Recognition · Computer Science 2026-03-13 Yiran Guan , Liang Yin , Dingkang Liang , Jianzhong Ju , Zhenbo Luo , Jian Luan , Yuliang Liu , Xiang Bai

Learning systems must balance generalization across experiences with discrimination of task-relevant details. Effective learning therefore requires representations that support both. Online latent-cause models support incremental inference…

Machine Learning · Computer Science 2026-03-20 Ines Aitsahalia , Kiyohito Iigaya

To interpret deep neural networks, one main approach is to dissect the visual input and find the prototypical parts responsible for the classification. However, existing methods often ignore the hierarchical relationship between these…

Computer Vision and Pattern Recognition · Computer Science 2023-04-05 Sadaf Gulshad , Teng Long , Nanne van Noord

Autonomous driving requires the model to perceive the environment and (re)act within a low latency for safety. While past works ignore the inevitable changes in the environment after processing, streaming perception is proposed to jointly…

Computer Vision and Pattern Recognition · Computer Science 2022-03-30 Jinrong Yang , Songtao Liu , Zeming Li , Xiaoping Li , Jian Sun

We present a novel hierarchical model for human activity recognition. In contrast to approaches that successively recognize actions and activities, our approach jointly models actions and activities in a unified framework, and their labels…

Robotics · Computer Science 2015-03-09 Ninghang Hu , Gwenn Englebienne , Zhongyu Lou , Ben Kröse

Modern visual agents require representations that are general, causal, and physically structured to operate in real-time streaming environments. However, current vision foundation models remain fragmented, specializing narrowly in image…

Computer Vision and Pattern Recognition · Computer Science 2026-03-13 Yibin Yan , Jilan Xu , Shangzhe Di , Haoning Wu , Weidi Xie

Multimodal Large Language Models (MLLMs) have achieved strong performance across many tasks, yet most systems remain limited to offline inference, requiring complete inputs before generating outputs. Recent streaming methods reduce latency…

Computer Vision and Pattern Recognition · Computer Science 2026-01-13 Junyan Lin , Junlong Tong , Hao Wu , Jialiang Zhang , Jinming Liu , Xin Jin , Xiaoyu Shen

In this paper, we tackle the task of online video temporal grounding (OnVTG), which requires the model to locate events related to a given text query within a video stream. Unlike regular video temporal grounding, OnVTG requires the model…

Computer Vision and Pattern Recognition · Computer Science 2025-08-07 Minghang Zheng , Yuxin Peng , Benyuan Sun , Yi Yang , Yang Liu

Streaming perception is a critical task in autonomous driving that requires balancing the latency and accuracy of the autopilot system. However, current methods for streaming perception are limited as they only rely on the current and…

Computer Vision and Pattern Recognition · Computer Science 2023-03-31 Chenyang Li , Zhi-Qi Cheng , Jun-Yan He , Pengyu Li , Bin Luo , Hanyuan Chen , Yifeng Geng , Jin-Peng Lan , Xuansong Xie