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We present an approach to perform supervised action recognition in the dark. In this work, we present our results on the ARID dataset. Most previous works only evaluate performance on large, well illuminated datasets like Kinetics and…

Computer Vision and Pattern Recognition · Computer Science 2021-07-13 Sanchit Hira , Ritwik Das , Abhinav Modi , Daniil Pakhomov

Action recognition in videos has attracted a lot of attention in the past decade. In order to learn robust models, previous methods usually assume videos are trimmed as short sequences and require ground-truth annotations of each video…

Computer Vision and Pattern Recognition · Computer Science 2019-02-21 Xiao-Yu Zhang , Haichao Shi , Changsheng Li , Kai Zheng , Xiaobin Zhu , Lixin Duan

Fast and accurate object perception in low-light traffic scenes has attracted increasing attention. However, due to severe illumination degradation and the lack of reliable visual cues, existing perception models and methods struggle to…

Computer Vision and Pattern Recognition · Computer Science 2025-09-08 Hulin Li , Qiliang Ren , Jun Li , Hanbing Wei , Zheng Liu , Linfang Fan

While action recognition (AR) has gained large improvements with the introduction of large-scale video datasets and the development of deep neural networks, AR models robust to challenging environments in real-world scenarios are still…

Computer Vision and Pattern Recognition · Computer Science 2023-10-31 Yuecong Xu , Jianfei Yang , Haozhi Cao , Jianxiong Yin , Zhenghua Chen , Xiaoli Li , Zhengguo Li , Qianwen Xu

Recently, trimap-free methods have drawn increasing attention in human video matting due to their promising performance. Nevertheless, these methods still suffer from the lack of deterministic foreground-background cues, which impairs their…

Computer Vision and Pattern Recognition · Computer Science 2025-03-04 Huayu Zhang , Dongyue Wu , Yuanjie Shao , Nong Sang , Changxin Gao

Weakly supervised temporal action localization is a challenging vision task due to the absence of ground-truth temporal locations of actions in the training videos. With only video-level supervision during training, most existing methods…

Computer Vision and Pattern Recognition · Computer Science 2021-03-26 Ashraful Islam , Chengjiang Long , Richard Radke

This paper addresses the challenges of Online Action Recognition (OAR), a framework that involves instantaneous analysis and classification of behaviors in video streams. OAR must operate under stringent latency constraints, making it an…

Computer Vision and Pattern Recognition · Computer Science 2024-12-03 Wei Luo , Deyu Zhang , Ying Tang , Fan Wu , Yaoxue Zhang

Online action detection (OAD) aims to identify ongoing actions from streaming video in real-time, without access to future frames. Since these actions manifest at varying scales of granularity, ranging from coarse to fine, projecting an…

Computer Vision and Pattern Recognition · Computer Science 2024-06-03 Zhipeng Yang , Ruoyu Wang , Yang Tan , Liping Xie

Event cameras offer significant advantages for low-light video enhancement, primarily due to their high dynamic range. Current research, however, is severely limited by the absence of large-scale, real-world, and spatio-temporally aligned…

Computer Vision and Pattern Recognition · Computer Science 2024-08-30 Kanghao Chen , Guoqiang Liang , Hangyu Li , Yunfan Lu , Lin Wang

Modern multi-object tracking (MOT) systems usually model the trajectories by associating per-frame detections. However, when camera motion, fast motion, and occlusion challenges occur, it is difficult to ensure long-range tracking or even…

Computer Vision and Pattern Recognition · Computer Science 2020-09-21 Shoudong Han , Piao Huang , Hongwei Wang , En Yu , Donghaisheng Liu , Xiaofeng Pan , Jun Zhao

Human action recognition is an important application domain in computer vision. Its primary aim is to accurately describe human actions and their interactions from a previously unseen data sequence acquired by sensors. The ability to…

Computer Vision and Pattern Recognition · Computer Science 2022-08-09 Hieu H. Pham , Louahdi Khoudour , Alain Crouzil , Pablo Zegers , Sergio A. Velastin

Robustness to domain changes is a key capability for effective deployment of human action recognition systems in real-world scenarios, where action categories at inference can present important domain shifts or even unseen actions from…

Computer Vision and Pattern Recognition · Computer Science 2026-05-22 Yannick Porto , Renato Martins , Thomas Chalumeau , Cedric Demonceaux

Existing methods for enhancing dark images captured in a very low-light environment assume that the intensity level of the optimal output image is known and already included in the training set. However, this assumption often does not hold,…

Image and Video Processing · Electrical Eng. & Systems 2023-04-05 Evgeny Hershkovitch Neiterman , Michael Klyuchka , Gil Ben-Artzi

Human action recognition in dark videos is a challenging task for computer vision. Recent research focuses on applying dark enhancement methods to improve the visibility of the video. However, such video processing results in the loss of…

Computer Vision and Pattern Recognition · Computer Science 2024-06-05 Chi-Jui Chang , Oscar Tai-Yuan Chen , Vincent S. Tseng

Capturing the interactions between humans and their environment in 3D is important for many applications in robotics, graphics, and vision. Recent works to reconstruct the 3D human and object from a single RGB image do not have consistent…

Computer Vision and Pattern Recognition · Computer Science 2023-11-01 Xianghui Xie , Bharat Lal Bhatnagar , Gerard Pons-Moll

Research on depth-based human activity analysis achieved outstanding performance and demonstrated the effectiveness of 3D representation for action recognition. The existing depth-based and RGB+D-based action recognition benchmarks have a…

Computer Vision and Pattern Recognition · Computer Science 2019-06-11 Jun Liu , Amir Shahroudy , Mauricio Perez , Gang Wang , Ling-Yu Duan , Alex C. Kot

We design and implement an end-to-end system for real-time crime detection in low-light environments. Unlike Closed-Circuit Television, which performs reactively, the Low-Light Environment Neural Surveillance provides real time crime…

Computer Vision and Pattern Recognition · Computer Science 2023-01-05 Michael Potter , Henry Gridley , Noah Lichtenstein , Kevin Hines , John Nguyen , Jacob Walsh

Video captioning aims to generate comprehensive and coherent descriptions of the video content, contributing to the advancement of both video understanding and generation. However, existing methods often suffer from motion-detail imbalance,…

Computer Vision and Pattern Recognition · Computer Science 2025-08-28 Chunlin Zhong , Qiuxia Hou , Zhangjun Zhou , Shuang Hao , Haonan Lu , Yanhao Zhang , He Tang , Xiang Bai

This paper is a brief report to our submission to the VIPriors Action Recognition Challenge. Action recognition has attracted many researchers attention for its full application, but it is still challenging. In this paper, we study previous…

Computer Vision and Pattern Recognition · Computer Science 2020-07-17 Zhipeng Luo , Dawei Xu , Zhiguang Zhang

In low-light conditions, capturing videos with frame-based cameras often requires long exposure times, resulting in motion blur and reduced visibility. While frame-based motion deblurring and low-light enhancement have been studied, they…

Computer Vision and Pattern Recognition · Computer Science 2024-08-28 Taewoo Kim , Jaeseok Jeong , Hoonhee Cho , Yuhwan Jeong , Kuk-Jin Yoon