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Temporal video grounding (TVG) aims to localize a target segment in a video according to a given sentence query. Though respectable works have made decent achievements in this task, they severely rely on abundant video-query paired data,…

计算机视觉与模式识别 · 计算机科学 2022-01-17 Daizong Liu , Xiaoye Qu , Yinzhen Wang , Xing Di , Kai Zou , Yu Cheng , Zichuan Xu , Pan Zhou

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…

多媒体 · 计算机科学 2021-11-02 Ziyang Ma , Xianjing Han , Xuemeng Song , Yiran Cui , Liqiang Nie

Due to the amount of videos and related captions uploaded every hour, deep learning-based solutions for cross-modal video retrieval are attracting more and more attention. A typical approach consists in learning a joint text-video embedding…

计算机视觉与模式识别 · 计算机科学 2022-03-17 Alex Falcon , Giuseppe Serra , Oswald Lanz

Video person re-identification attracts much attention in recent years. It aims to match image sequences of pedestrians from different camera views. Previous approaches usually improve this task from three aspects, including a) selecting…

计算机视觉与模式识别 · 计算机科学 2019-09-04 Ruimao Zhang , Hongbin Sun , Jingyu Li , Yuying Ge , Liang Lin , Ping Luo , Xiaogang Wang

Self-supervised video representation learning aimed at maximizing similarity between different temporal segments of one video, in order to enforce feature persistence over time. This leads to loss of pertinent information related to…

计算机视觉与模式识别 · 计算机科学 2023-05-12 Di Yang , Yaohui Wang , Quan Kong , Antitza Dantcheva , Lorenzo Garattoni , Gianpiero Francesca , Francois Bremond

The rapid increase in the amount of published visual data and the limited time of users bring the demand for processing untrimmed videos to produce shorter versions that convey the same information. Despite the remarkable progress that has…

计算机视觉与模式识别 · 计算机科学 2020-04-01 Washington Ramos , Michel Silva , Edson Araujo , Leandro Soriano Marcolino , Erickson Nascimento

Partially Relevant Video Retrieval (PRVR) aims to retrieve untrimmed videos partially relevant to a given query. The core challenge lies in learning robust query-video alignment against spurious semantic correlations arising from inherent…

计算机视觉与模式识别 · 计算机科学 2025-09-03 Long Zhang , Peipei Song , Jianfeng Dong , Kun Li , Xun Yang

The rapid progress of large language models (LLMs) has laid the foundation for multimodal models. However, visual language models (VLMs) still face heavy computational costs when extended from images to videos due to high frame rates and…

计算机视觉与模式识别 · 计算机科学 2026-02-10 Peiran Wu , Zhuorui Yu , Yunze Liu , Chi-Hao Wu , Enmin Zhou , Junxiao Shen

This paper addresses the problem of text-to-video temporal grounding, which aims to identify the time interval in a video semantically relevant to a text query. We tackle this problem using a novel regression-based model that learns to…

计算机视觉与模式识别 · 计算机科学 2020-04-17 Jonghwan Mun , Minsu Cho , Bohyung Han

Video grounding aims to localize the corresponding video moment in an untrimmed video given a language query. Existing methods often address this task in an indirect way, by casting it as a proposal-and-match or fusion-and-detection…

计算机视觉与模式识别 · 计算机科学 2024-02-29 Fengyuan Shi , Weilin Huang , Limin Wang

Most existing Convolutional Neural Networks(CNNs) used for action recognition are either difficult to optimize or underuse crucial temporal information. Inspired by the fact that the recurrent model consistently makes breakthroughs in the…

计算机视觉与模式识别 · 计算机科学 2018-01-04 Zhenxing Zheng , Gaoyun An , Qiuqi Ruan

Partially Relevant Video Retrieval~(PRVR) aims to retrieve a video where a specific segment is relevant to a given text query. Typical training processes of PRVR assume a one-to-one relationship where each text query is relevant to only one…

计算机视觉与模式识别 · 计算机科学 2025-06-10 CH Cho , WJ Moon , W Jun , MS Jung , JP Heo

Video-to-video moment retrieval (Vid2VidMR) is the task of localizing unseen events or moments in a target video using a query video. This task poses several challenges, such as the need for semantic frame-level alignment and modeling…

计算机视觉与模式识别 · 计算机科学 2025-09-03 Yogesh Kumar , Uday Agarwal , Manish Gupta , Anand Mishra

In this paper, we introduce an alternative approach to enhancing Multi-Agent Reinforcement Learning (MARL) through the integration of domain knowledge and attention-based policy mechanisms. Our methodology focuses on the incorporation of…

机器学习 · 计算机科学 2025-04-04 Andre R Kuroswiski , Annie S Wu , Angelo Passaro

Text-driven video moment retrieval (VMR) remains challenging due to limited capture of hidden temporal dynamics in untrimmed videos, leading to imprecise grounding in long sequences. Traditional methods rely on natural language queries…

计算机视觉与模式识别 · 计算机科学 2026-03-24 Yunzhuo Sun , Xinyue Liu , Yanyang Li , Nanding Wu , Yifang Xu , Linlin Zong , Xianchao Zhang , Wenxin Liang

Advertisement (Ad) video violation detection is critical for ensuring platform compliance, but existing methods struggle with precise temporal grounding, noisy annotations, and limited generalization. We propose RAVEN, a novel framework…

计算与语言 · 计算机科学 2025-10-21 Deyi Ji , Yuekui Yang , Haiyang Wu , Shaoping Ma , Tianrun Chen , Lanyun Zhu

This paper focuses on task recognition and action segmentation in weakly-labeled instructional videos, where only the ordered sequence of video-level actions is available during training. We propose a two-stream framework, which exploits…

计算机视觉与模式识别 · 计算机科学 2021-10-13 Reza Ghoddoosian , Saif Sayed , Vassilis Athitsos

Temporal action localization is an important step towards video understanding. Most current action localization methods depend on untrimmed videos with full temporal annotations of action instances. However, it is expensive and…

计算机视觉与模式识别 · 计算机科学 2020-01-23 Ashraful Islam , Richard J. Radke

Since the preparation of labeled data for training semantic segmentation networks of point clouds is a time-consuming process, weakly supervised approaches have been introduced to learn from only a small fraction of data. These methods are…

计算机视觉与模式识别 · 计算机科学 2022-09-16 Gengxin Liu , Oliver van Kaick , Hui Huang , Ruizhen Hu

Video understanding is inherently intention-driven-humans naturally focus on relevant frames based on their goals. Recent advancements in multimodal large language models (MLLMs) have enabled flexible query-driven reasoning; however,…

计算机视觉与模式识别 · 计算机科学 2025-05-22 Ziqiang Xu , Qi Dai , Tian Xie , Yifan Yang , Kai Qiu , DongDong Chen , Zuxuan Wu , Chong Luo
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