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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

Video temporal grounding aims to identify video segments within untrimmed videos that are most relevant to a given natural language query. Existing video temporal localization models rely on specific datasets for training and have high data…

Computer Vision and Pattern Recognition · Computer Science 2024-08-30 Minghang Zheng , Xinhao Cai , Qingchao Chen , Yuxin Peng , Yang Liu

In this paper, we study the problem of temporal video grounding (TVG), which aims to predict the starting/ending time points of moments described by a text sentence within a long untrimmed video. Benefiting from fine-grained 3D visual…

Computer Vision and Pattern Recognition · Computer Science 2023-10-05 Yimeng Zhang , Xin Chen , Jinghan Jia , Sijia Liu , Ke Ding

Inspired by the activity-silent and persistent activity mechanisms in human visual perception biology, we design a Unified Static and Dynamic Network (UniSDNet), to learn the semantic association between the video and text/audio queries in…

Computer Vision and Pattern Recognition · Computer Science 2025-04-14 Jingjing Hu , Dan Guo , Kun Li , Zhan Si , Xun Yang , Xiaojun Chang , Meng Wang

Video grounding aims to locate a moment of interest matching the given query sentence from an untrimmed video. Previous works ignore the {sparsity dilemma} in video annotations, which fails to provide the context information between…

Computer Vision and Pattern Recognition · Computer Science 2024-03-26 Hongxiang Li , Meng Cao , Xuxin Cheng , Zhihong Zhu , Yaowei Li , Yuexian Zou

Temporal sentence grounding (TSG) aims to identify the temporal boundary of a specific segment from an untrimmed video by a sentence query. All existing works first utilize a sparse sampling strategy to extract a fixed number of video…

Computer Vision and Pattern Recognition · Computer Science 2023-01-03 Jiahao Zhu , Daizong Liu , Pan Zhou , Xing Di , Yu Cheng , Song Yang , Wenzheng Xu , Zichuan Xu , Yao Wan , Lichao Sun , Zeyu Xiong

Temporal sentence grounding (TSG) is an important yet challenging task in multimedia information retrieval. Although previous TSG methods have achieved decent performance, they tend to capture the selection biases of frequently appeared…

Computer Vision and Pattern Recognition · Computer Science 2022-07-28 Daizong Liu , Xiaoye Qu , Wei Hu

In this paper, we study the problem of weakly-supervised temporal grounding of sentence in video. Specifically, given an untrimmed video and a query sentence, our goal is to localize a temporal segment in the video that semantically…

Computer Vision and Pattern Recognition · Computer Science 2020-01-28 Zhenfang Chen , Lin Ma , Wenhan Luo , Peng Tang , Kwan-Yee K. Wong

This paper studies the multimedia problem of temporal sentence grounding (TSG), which aims to accurately determine the specific video segment in an untrimmed video according to a given sentence query. Traditional TSG methods mainly follow…

Multimedia · Computer Science 2026-05-26 Xiang Fang , Daizong Liu , Pan Zhou , Zichuan Xu , Ruixuan Li

Temporal Video Grounding (TVG) aims to localize video segments corresponding to a given textual query, which often describes human actions. However, we observe that current methods, usually optimizing for high temporal…

Artificial Intelligence · Computer Science 2026-02-16 Zhaoyu Chen , Hongnan Lin , Yongwei Nie , Fei Ma , Xuemiao Xu , Fei Yu , Chengjiang Long

Temporal Sentence Grounding in Videos (TSGV), which aims to ground a natural language sentence in an untrimmed video, has drawn widespread attention over the past few years. However, recent studies have found that current benchmark datasets…

Computer Vision and Pattern Recognition · Computer Science 2022-03-11 Xiaohan Lan , Yitian Yuan , Xin Wang , Long Chen , Zhi Wang , Lin Ma , Wenwu Zhu

Given a text description, Temporal Language Grounding (TLG) aims to localize temporal boundaries of the segments that contain the specified semantics in an untrimmed video. TLG is inherently a challenging task, as it requires comprehensive…

Computer Vision and Pattern Recognition · Computer Science 2021-12-07 Fan Luo , Shaoxiang Chen , Jingjing Chen , Zuxuan Wu , Yu-Gang Jiang

The onset of long-form egocentric datasets such as Ego4D and EPIC-Kitchens presents a new challenge for the task of Temporal Sentence Grounding (TSG). Compared to traditional benchmarks on which this task is evaluated, these datasets offer…

Computer Vision and Pattern Recognition · Computer Science 2023-10-27 Kevin Flanagan , Dima Damen , Michael Wray

Video Temporal Grounding (VTG) aims to identify visual frames in a video clip that match text queries. Recent studies in VTG employ cross-attention to correlate visual frames and text queries as individual token sequences. However, these…

Computer Vision and Pattern Recognition · Computer Science 2024-10-18 Jongbhin Woo , Hyeonggon Ryu , Youngjoon Jang , Jae Won Cho , Joon Son Chung

Temporal sentence grounding in videos (TSGV) aims to localize a temporal segment that semantically corresponds to a sentence query from an untrimmed video. Most current methods adopt pre-trained query-agnostic visual encoders for offline…

Computer Vision and Pattern Recognition · Computer Science 2026-04-06 Allen He , Qi Liu , Kun Liu , Xinchen Liu , Wu Liu

Temporal Grounding is to identify specific moments or highlights from a video corresponding to textual descriptions. Typical approaches in temporal grounding treat all video clips equally during the encoding process regardless of their…

Computer Vision and Pattern Recognition · Computer Science 2024-07-08 WonJun Moon , Sangeek Hyun , SuBeen Lee , Jae-Pil Heo

Temporal sentence grounding in videos (TSGV), \aka natural language video localization (NLVL) or video moment retrieval (VMR), aims to retrieve a temporal moment that semantically corresponds to a language query from an untrimmed video.…

Computer Vision and Pattern Recognition · Computer Science 2023-04-26 Hao Zhang , Aixin Sun , Wei Jing , Joey Tianyi Zhou

Temporal sentence grounding (TSG) is crucial and fundamental for video understanding. Although the existing methods train well-designed deep networks with a large amount of data, we find that they can easily forget the rarely appeared cases…

Computer Vision and Pattern Recognition · Computer Science 2022-01-04 Daizong Liu , Xiaoye Qu , Xing Di , Yu Cheng , Zichuan Xu , Pan Zhou

Given an untrimmed video and a language query depicting a specific temporal moment in the video, video grounding aims to localize the time interval by understanding the text and video simultaneously. One of the most challenging issues is an…

Computer Vision and Pattern Recognition · Computer Science 2022-10-25 Dahye Kim , Jungin Park , Jiyoung Lee , Seongheon Park , Kwanghoon Sohn

Automatic video captioning is challenging due to the complex interactions in dynamic real scenes. A comprehensive system would ultimately localize and track the objects, actions and interactions present in a video and generate a description…

Computer Vision and Pattern Recognition · Computer Science 2016-10-19 Mihai Zanfir , Elisabeta Marinoiu , Cristian Sminchisescu