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Temporal Sentence Grounding (TSG) aims to identify relevant moments in an untrimmed video that semantically correspond to a given textual query. Despite existing studies having made substantial progress, they often overlook the issue of…

Computer Vision and Pattern Recognition · Computer Science 2025-08-26 Kefan Tang , Lihuo He , Jisheng Dang , Xinbo Gao

Temporal grounding of activities, the identification of specific time intervals of actions within a larger event context, is a critical task in video understanding. Recent advancements in multimodal large language models (LLMs) offer new…

Computer Vision and Pattern Recognition · Computer Science 2024-07-09 Young Chol Song

Video large language models (Video-LLMs) can temporally ground language queries and retrieve video moments. Yet, such temporal comprehension capabilities are neither well-studied nor understood. So we conduct a study on prediction…

Computer Vision and Pattern Recognition · Computer Science 2025-03-18 Minjoon Jung , Junbin Xiao , Byoung-Tak Zhang , Angela Yao

Temporal Sentence Grounding (TSG), which aims to localize moments from videos based on the given natural language queries, has attracted widespread attention. Existing works are mainly designed for short videos, failing to handle TSG in…

Computer Vision and Pattern Recognition · Computer Science 2023-12-29 Houlun Chen , Xin Wang , Hong Chen , Zihan Song , Jia Jia , Wenwu Zhu

Many studies focus on improving pretraining or developing new backbones in text-video retrieval. However, existing methods may suffer from the learning and inference bias issue, as recent research suggests in other text-video-related tasks.…

Computer Vision and Pattern Recognition · Computer Science 2023-09-19 Burak Satar , Hongyuan Zhu , Hanwang Zhang , Joo Hwee Lim

Video-Language Pre-training models have recently significantly improved various multi-modal downstream tasks. Previous dominant works mainly adopt contrastive learning to achieve global feature alignment across modalities. However, the…

Computer Vision and Pattern Recognition · Computer Science 2023-01-19 Fan Ma , Xiaojie Jin , Heng Wang , Jingjia Huang , Linchao Zhu , Jiashi Feng , Yi Yang

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) aims to localize the temporal segment which is semantically aligned with a natural language query in an untrimmed video.Most existing methods extract frame-grained features or object-grained features by 3D…

Computer Vision and Pattern Recognition · Computer Science 2023-02-22 Zeyu Xiong , Daizong Liu , Pan Zhou , Jiahao Zhu

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 sentence grounding aims to identify exact moments in a video that correspond to a given textual query, typically addressed with detection transformer (DETR) solutions. However, we find that typical strategies designed to enhance…

Computer Vision and Pattern Recognition · Computer Science 2025-11-25 Jiajin Tang , Zhengxuan Wei , Yuchen Zhu , Cheng Shi , Guanbin Li , Liang Lin , Sibei Yang

Temporal sentence grounding involves the retrieval of a video moment with a natural language query. Many existing works directly incorporate the given video and temporally localized query for temporal grounding, overlooking the inherent…

Computer Vision and Pattern Recognition · Computer Science 2024-06-04 Cai Chen , Runzhong Zhang , Jianjun Gao , Kejun Wu , Kim-Hui Yap , Yi Wang

Video Temporal Grounding (VTG) aims to localize temporal segments in long, untrimmed videos that align with a given natural language query. This task typically comprises two subtasks: Moment Retrieval (MR) and Highlight Detection (HD).…

Computer Vision and Pattern Recognition · Computer Science 2025-10-24 Minseok Kang , Minhyeok Lee , Minjung Kim , Donghyeong Kim , Sangyoun Lee

Temporal Video Grounding (TVG), which requires pinpointing relevant temporal segments from video based on language query, has always been a highly challenging task in the field of video understanding. Videos often have a larger volume of…

Computer Vision and Pattern Recognition · Computer Science 2025-07-08 Feng Yue , Zhaoxing Zhang , Junming Jiao , Zhengyu Liang , Shiwen Cao , Feifei Zhang , Rong Shen

Given some video-query pairs with untrimmed videos and sentence queries, temporal sentence grounding (TSG) aims to locate query-relevant segments in these videos. Although previous respectable TSG methods have achieved remarkable success,…

Computer Vision and Pattern Recognition · Computer Science 2026-05-26 Xiang Fang , Wanlong Fang , Changshuo Wang , Daizong Liu , Keke Tang , Jianfeng Dong , Pan Zhou , Beibei Li

Video grounding aims to localize a moment from an untrimmed video for a given textual query. Existing approaches focus more on the alignment of visual and language stimuli with various likelihood-based matching or regression strategies,…

Computer Vision and Pattern Recognition · Computer Science 2021-07-08 Guoshun Nan , Rui Qiao , Yao Xiao , Jun Liu , Sicong Leng , Hao Zhang , Wei Lu

This paper presents a new task, the grounding of spatio-temporal identifying descriptions in videos. Previous work suggests potential bias in existing datasets and emphasizes the need for a new data creation schema to better model…

Computer Vision and Pattern Recognition · Computer Science 2019-04-09 Peratham Wiriyathammabhum , Abhinav Shrivastava , Vlad I. Morariu , Larry S. Davis

Temporal sentence grounding in videos(TSGV), which aims to localize one target segment from an untrimmed video with respect to a given sentence query, has drawn increasing attentions in the research community over the past few years.…

Computer Vision and Pattern Recognition · Computer Science 2021-09-20 Xiaohan Lan , Yitian Yuan , Xin Wang , Zhi Wang , Wenwu Zhu

Temporal sentence grounding in videos (TSGV) faces challenges due to public TSGV datasets containing significant temporal biases, which are attributed to the uneven temporal distributions of target moments. Existing methods generate…

Computer Vision and Pattern Recognition · Computer Science 2025-01-15 Junlong Ren , Gangjian Zhang , Haifeng Sun , Hao Wang

Temporal sentence grounding in videos aims to detect and localize one target video segment, which semantically corresponds to a given sentence. Existing methods mainly tackle this task via matching and aligning semantics between a sentence…

Computer Vision and Pattern Recognition · Computer Science 2019-11-01 Yitian Yuan , Lin Ma , Jingwen Wang , Wei Liu , Wenwu Zhu

Denoisers trained with synthetic data often fail to cope with the diversity of unknown noises, giving way to methods that can adapt to existing noise without knowing its ground truth. Previous image-based method leads to noise overfitting…

Computer Vision and Pattern Recognition · Computer Science 2021-04-01 Yanghao Li , Bichuan Guo , Jiangtao Wen , Zhen Xia , Shan Liu , Yuxing Han