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Temporally localizing activities within untrimmed videos has been extensively studied in recent years. Despite recent advances, existing methods for weakly-supervised temporal activity localization struggle to recognize when an activity is…

Computer Vision and Pattern Recognition · Computer Science 2020-07-15 Kyle Min , Jason J. Corso

Video understanding has received more attention in the past few years due to the availability of several large-scale video datasets. However, annotating large-scale video datasets are cost-intensive. In this work, we propose a…

Computer Vision and Pattern Recognition · Computer Science 2020-11-30 Soroosh Poorgholi , Osman Semih Kayhan , Jan C. van Gemert

Self-attention learns pairwise interactions to model long-range dependencies, yielding great improvements for video action recognition. In this paper, we seek a deeper understanding of self-attention for temporal modeling in videos. We…

Computer Vision and Pattern Recognition · Computer Science 2022-03-30 Bo He , Xitong Yang , Zuxuan Wu , Hao Chen , Ser-Nam Lim , Abhinav Shrivastava

Recognizing human actions in videos requires spatial and temporal understanding. Most existing action recognition models lack a balanced spatio-temporal understanding of videos. In this work, we propose a novel two-stream architecture,…

Computer Vision and Pattern Recognition · Computer Science 2024-09-04 Dongho Lee , Jongseo Lee , Jinwoo Choi

As information becomes more accessible, user-generated videos are increasing in length, placing a burden on viewers to sift through vast content for valuable insights. This trend underscores the need for an algorithm to extract key video…

Computer Vision and Pattern Recognition · Computer Science 2024-12-13 Lingfeng Yang , Zhenyuan Chen , Xiang Li , Peiyang Jia , Liangqu Long , Jian Yang

Attentively important regions in video frames account for a majority part of the semantics in each frame. This information is helpful in many applications not only for entertainment (such as auto generating commentary and tourist guide) but…

Computer Vision and Pattern Recognition · Computer Science 2020-12-07 Thanh T. Nguyen , Dung Nguyen

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

Temporal relational reasoning, the ability to link meaningful transformations of objects or entities over time, is a fundamental property of intelligent species. In this paper, we introduce an effective and interpretable network module, the…

Computer Vision and Pattern Recognition · Computer Science 2018-07-26 Bolei Zhou , Alex Andonian , Aude Oliva , Antonio Torralba

The need for efficiently finding the video content a user wants is increasing because of the erupting of user-generated videos on the Web. Existing keyword-based or content-based video retrieval methods usually determine what occurs in a…

Computer Vision and Pattern Recognition · Computer Science 2019-05-13 Yang Feng , Lin Ma , Wei Liu , Jiebo Luo

Traffic cameras are essential in urban areas, playing a crucial role in intelligent transportation systems. Multiple cameras at intersections enhance law enforcement capabilities, traffic management, and pedestrian safety. However,…

Computer Vision and Pattern Recognition · Computer Science 2025-11-27 Md Adnan Arefeen , Biplob Debnath , Srimat Chakradhar

Text-Video retrieval is a task of great practical value and has received increasing attention, among which learning spatial-temporal video representation is one of the research hotspots. The video encoders in the state-of-the-art video…

Computer Vision and Pattern Recognition · Computer Science 2022-07-19 Yuqi Liu , Pengfei Xiong , Luhui Xu , Shengming Cao , Qin Jin

In this paper, we present a one-stage framework TriDet for temporal action detection. Existing methods often suffer from imprecise boundary predictions due to the ambiguous action boundaries in videos. To alleviate this problem, we propose…

Computer Vision and Pattern Recognition · Computer Science 2023-03-17 Dingfeng Shi , Yujie Zhong , Qiong Cao , Lin Ma , Jia Li , Dacheng Tao

Realistic network traffic simulation is critical for evaluating intrusion detection systems, stress-testing network protocols, and constructing high-fidelity environments for cybersecurity training. While attack traffic can often be layered…

Cryptography and Security · Computer Science 2026-01-23 Kristen Moore , Diksha Goel , Cody James Christopher , Zhen Wang , Minjune Kim , Ahmed Ibrahim , Ahmad Mohsin , Seyit Camtepe

The increasing ubiquity of video content and the corresponding demand for efficient access to meaningful information have elevated video summarization and video highlights as a vital research area. However, many state-of-the-art methods…

Computer Vision and Pattern Recognition · Computer Science 2026-05-05 Pritam Mishra , Coloma Ballester , Dimosthenis Karatzas

Current approaches for activity recognition often ignore constraints on computational resources: 1) they rely on extensive feature computation to obtain rich descriptors on all frames, and 2) they assume batch-mode access to the entire test…

Computer Vision and Pattern Recognition · Computer Science 2016-04-05 Yu-Chuan Su , Kristen Grauman

We present CLIP2Video network to transfer the image-language pre-training model to video-text retrieval in an end-to-end manner. Leading approaches in the domain of video-and-language learning try to distill the spatio-temporal video…

Computer Vision and Pattern Recognition · Computer Science 2021-06-22 Han Fang , Pengfei Xiong , Luhui Xu , Yu Chen

Vision Language Models (VLMs) struggle with long-form videos due to the quadratic complexity of attention mechanisms. We propose Language-Guided Temporal Token Pruning (LGTTP), which leverages temporal cues from queries to adaptively prune…

Computer Vision and Pattern Recognition · Computer Science 2025-08-26 Yogesh Kumar

The user base of short video apps has experienced unprecedented growth in recent years, resulting in a significant demand for video content analysis. In particular, text-video retrieval, which aims to find the top matching videos given text…

Computer Vision and Pattern Recognition · Computer Science 2025-02-25 Xuzheng Yu , Chen Jiang , Xingning Dong , Tian Gan , Ming Yang , Qingpei Guo

This paper describes our solution for the video recognition task of ActivityNet Kinetics challenge that ranked the 1st place. Most of existing state-of-the-art video recognition approaches are in favor of an end-to-end pipeline. One…

Computer Vision and Pattern Recognition · Computer Science 2017-08-15 Yunlong Bian , Chuang Gan , Xiao Liu , Fu Li , Xiang Long , Yandong Li , Heng Qi , Jie Zhou , Shilei Wen , Yuanqing Lin

The temporal segmentation of events is an essential task and a precursor for the automatic recognition of human actions in the video. Several attempts have been made to capture frame-level salient aspects through attention but they lack the…

Computer Vision and Pattern Recognition · Computer Science 2020-05-08 Harshala Gammulle , Simon Denman , Sridha Sridharan , Clinton Fookes