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Video Temporal Grounding (VTG) aims to extract relevant video segments based on a given natural language query. Recently, zero-shot VTG methods have gained attention by leveraging pretrained vision-language models (VLMs) to localize target…

Computer Vision and Pattern Recognition · Computer Science 2025-08-12 Jin-Seop Lee , SungJoon Lee , Jaehan Ahn , YunSeok Choi , Jee-Hyong Lee

Video temporal grounding aims to pinpoint a video segment that matches the query description. Despite the recent advance in short-form videos (\textit{e.g.}, in minutes), temporal grounding in long videos (\textit{e.g.}, in hours) is still…

Computer Vision and Pattern Recognition · Computer Science 2024-02-20 Yulin Pan , Xiangteng He , Biao Gong , Yiliang Lv , Yujun Shen , Yuxin Peng , Deli Zhao

The task of weakly supervised temporal sentence grounding (WSTSG) aims to detect temporal intervals corresponding to a language description from untrimmed videos with only video-level video-language correspondence. For an anchor sample,…

Computer Vision and Pattern Recognition · Computer Science 2025-05-13 Lu Dong , Haiyu Zhang , Hongjie Zhang , Yifei Huang , Zhen-Hua Ling , Yu Qiao , Limin Wang , Yali Wang

Video scene graph generation (VidSGG) aims to parse the video content into scene graphs, which involves modeling the spatio-temporal contextual information in the video. However, due to the long-tailed training data in datasets, the…

Computer Vision and Pattern Recognition · Computer Science 2022-08-02 Li Xu , Haoxuan Qu , Jason Kuen , Jiuxiang Gu , Jun Liu

Temporal grounding of natural language in untrimmed videos is a fundamental yet challenging multimedia task facilitating cross-media visual content retrieval. We focus on the weakly supervised setting of this task that merely accesses to…

Computer Vision and Pattern Recognition · Computer Science 2020-09-21 Jie Wu , Guanbin Li , Xiaoguang Han , Liang Lin

The query-based moment retrieval is a problem of localising a specific clip from an untrimmed video according a query sentence. This is a challenging task that requires interpretation of both the natural language query and the video…

Computer Vision and Pattern Recognition · Computer Science 2020-10-08 Mayu Otani , Yuta Nakashima , Esa Rahtu , Janne Heikkilä

Temporal Video Grounding (TVG), the task of locating specific video segments based on language queries, is a core challenge in long-form video understanding. While recent Large Vision-Language Models (LVLMs) have shown early promise in…

Computer Vision and Pattern Recognition · Computer Science 2025-07-01 Ye Wang , Ziheng Wang , Boshen Xu , Yang Du , Kejun Lin , Zihan Xiao , Zihao Yue , Jianzhong Ju , Liang Zhang , Dingyi Yang , Xiangnan Fang , Zewen He , Zhenbo Luo , Wenxuan Wang , Junqi Lin , Jian Luan , Qin Jin

Prior work has established Test-Time Training (TTT) as a general framework to further improve a trained model at test time. Before making a prediction on each test instance, the model is first trained on the same instance using a…

Computer Vision and Pattern Recognition · Computer Science 2025-01-07 Renhao Wang , Yu Sun , Arnuv Tandon , Yossi Gandelsman , Xinlei Chen , Alexei A. Efros , Xiaolong Wang

Temporal sentence grounding (TSG) aims to locate a specific moment from an untrimmed video with a given natural language query. Recently, weakly supervised methods still have a large performance gap compared to fully supervised ones, while…

Computer Vision and Pattern Recognition · Computer Science 2023-08-09 Hanjun Li , Xiujun Shu , Sunan He , Ruizhi Qiao , Wei Wen , Taian Guo , Bei Gan , Xing Sun

A key solution to temporal sentence grounding (TSG) exists in how to learn effective alignment between vision and language features extracted from an untrimmed video and a sentence description. Existing methods mainly leverage vanilla soft…

Computer Vision and Pattern Recognition · Computer Science 2021-09-15 Daizong Liu , Xiaoye Qu , Pan Zhou

Embodied task planning demands vision-language models to generate action sequences that are both visually grounded and causally coherent over time. However, existing training paradigms face a critical trade-off: joint end-to-end training…

Computer Vision and Pattern Recognition · Computer Science 2026-03-13 Yuyuan Yang , Junkun Hong , Hongrong Wang , Honghao Cai , Xunpeng Ren , Ge Wang , Mingcong Lei , Shenhao Yan , Jiahao Yang , Chengsi Yao , Xi Li , Yiming Zhao , Yatong Han , Jinke Ren

Given an untrimmed video and a sentence description, temporal sentence localization aims to automatically determine the start and end points of the described sentence within the video. The problem is challenging as it needs the…

Computer Vision and Pattern Recognition · Computer Science 2018-11-06 Yitian Yuan , Tao Mei , Wenwu Zhu

Test-time scaling (TTS) has been shown to improve the performance of large language models (LLMs) by sampling and aggregating diverse reasoning paths. However, existing research has overlooked a critical issue: selection bias of reasoning…

Artificial Intelligence · Computer Science 2025-09-24 Zongqian Wu , Baoduo Xu , Tianyu Li , Zhu Sun , Xiaofeng Zhu , Lei Feng

A reliable driving assistant should provide consistent responses based on temporally grounded reasoning derived from observed information. In this work, we investigate whether Vision-Language Models (VLMs), when applied as driving…

Computer Vision and Pattern Recognition · Computer Science 2026-03-11 Chun-Peng Chang , Chen-Yu Wang , Holger Caesar , Alain Pagani

Identifying key temporal intervals within long videos, known as temporal grounding (TG), is important to video understanding and reasoning tasks. In this paper, we introduce a new form of the temporal grounding problem,…

Computer Vision and Pattern Recognition · Computer Science 2025-12-09 Xiangrui Liu , Minghao Qin , Yan Shu , Zhengyang Liang , Yang Tian , Chen Jason Zhang , Bo Zhao , Zheng Liu

We present a novel Cross-Class Relevance Learning approach for the task of temporal concept localization. Most localization architectures rely on feature extraction layers followed by a classification layer which outputs class probabilities…

Computer Vision and Pattern Recognition · Computer Science 2019-11-21 Junwei Ma , Satya Krishna Gorti , Maksims Volkovs , Ilya Stanevich , Guangwei Yu

Temporal grounding, also known as video moment retrieval, aims at locating video segments corresponding to a given query sentence. The compositional nature of natural language enables the localization beyond predefined events, posing a…

Computer Vision and Pattern Recognition · Computer Science 2024-07-16 Zixu Cheng , Yujiang Pu , Shaogang Gong , Parisa Kordjamshidi , Yu Kong

Vision-language temporal alignment is a crucial capability for human dynamic recognition and cognition in real-world scenarios. While existing research focuses on capturing vision-language relevance, it faces limitations due to biased…

Computer Vision and Pattern Recognition · Computer Science 2025-04-09 Hao Du , Bo Wu , Yan Lu , Zhendong Mao

We introduce ED-VTG, a method for fine-grained video temporal grounding utilizing multi-modal large language models. Our approach harnesses the capabilities of multimodal LLMs to jointly process text and video, in order to effectively…

Computer Vision and Pattern Recognition · Computer Science 2025-10-21 Shraman Pramanick , Effrosyni Mavroudi , Yale Song , Rama Chellappa , Lorenzo Torresani , Triantafyllos Afouras

Temporal Moment Localization (TML) in untrimmed videos is a challenging task in the field of multimedia, which aims at localizing the start and end points of the activity in the video, described by a sentence query. Existing methods mainly…

Multimedia · Computer Science 2021-11-02 Ziyang Ma , Xianjing Han , Xuemeng Song , Yiran Cui , Liqiang Nie