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In this paper, we propose Spatio-TEmporal Progressive (STEP) action detector---a progressive learning framework for spatio-temporal action detection in videos. Starting from a handful of coarse-scale proposal cuboids, our approach…

Computer Vision and Pattern Recognition · Computer Science 2019-04-22 Xitong Yang , Xiaodong Yang , Ming-Yu Liu , Fanyi Xiao , Larry Davis , Jan Kautz

Existing approaches for spatio-temporal action detection in videos are limited by the spatial extent and temporal duration of the actions. In this paper, we present a modular system for spatio-temporal action detection in untrimmed security…

Computer Vision and Pattern Recognition · Computer Science 2018-11-26 Joshua Gleason , Rajeev Ranjan , Steven Schwarcz , Carlos D. Castillo , Jun-Chen Cheng , Rama Chellappa

Enhancing the network architecture of the YOLO framework has been crucial for a long time, but has focused on CNN-based improvements despite the proven superiority of attention mechanisms in modeling capabilities. This is because…

Computer Vision and Pattern Recognition · Computer Science 2025-02-19 Yunjie Tian , Qixiang Ye , David Doermann

Tracking small, agile multi-objects (SMOT), such as birds, from an Unmanned Aerial Vehicle (UAV) perspective is a highly challenging computer vision task. The difficulty stems from three main sources: the extreme scarcity of target…

Computer Vision and Pattern Recognition · Computer Science 2025-07-22 Xiang Yu , Xinyao Liu , Guang Liang

Vision-Language-Action (VLA) models process visual inputs independently at each timestep, discarding valuable temporal information inherent in robotic manipulation tasks. This frame-by-frame processing makes models vulnerable to visual…

Computer Vision and Pattern Recognition · Computer Science 2025-11-17 Chenghao Liu , Jiachen Zhang , Chengxuan Li , Zhimu Zhou , Shixin Wu , Songfang Huang , Huiling Duan

Objective:Computer vision-based up-to-date accurate damage classification and localization are of decisive importance for infrastructure monitoring, safety, and the serviceability of civil infrastructure. Current state-of-the-art deep…

Computer Vision and Pattern Recognition · Computer Science 2023-03-09 Arunabha M. Roy , Jayabrata Bhaduri

This work investigates a fundamental question: Do Video-Language Models (VidLMs) robustly account for video content, temporal sequence, and motion? Our investigation shows that, surprisingly, they often do not. We introduce REVEAL{}, a…

Technological advancements have normalized the usage of unmanned aerial vehicles (UAVs) in every sector, spanning from military to commercial but they also pose serious security concerns due to their enhanced functionalities and easy access…

Computer Vision and Pattern Recognition · Computer Science 2022-11-30 Maham Misbah , Misha Urooj Khan , Zhaohui Yang , Zeeshan Kaleem

With the development of deep learning technology, the detection and classification of distracted driving behaviour requires higher accuracy. Existing deep learning-based methods are computationally intensive and parameter redundant,…

Computer Vision and Pattern Recognition · Computer Science 2024-07-08 Shiquan Shen , Zhizhong Wu , Pan Zhang

With the rapid development of information technology, modern warfare increasingly relies on intelligence, making small target detection critical in military applications. The growing demand for efficient, real-time detection has created…

Computer Vision and Pattern Recognition · Computer Science 2025-04-16 Xiaoxiao Ma , Junxiong Tong

This study explores a comprehensive approach to obstacle detection using advanced YOLO models, specifically YOLOv8, YOLOv7, YOLOv6, and YOLOv5. Leveraging deep learning techniques, the research focuses on the performance comparison of these…

Computer Vision and Pattern Recognition · Computer Science 2024-10-15 Santiago Pérez , Camila Gómez , Matías Rodríguez

This research delves into the development of a fatigue detection system based on modern object detection algorithms, particularly YOLO (You Only Look Once) models, including YOLOv5, YOLOv6, YOLOv7, and YOLOv8. By comparing the performance…

Computer Vision and Pattern Recognition · Computer Science 2024-10-22 Amelia Jones

In this paper, we develop a robust, efficient visual SLAM system that utilizes spatial inhibition of low threshold, baseline lines, and closed-loop keyframe features. Using ORB-SLAM2, our methods include stereo matching, frame tracking,…

Robotics · Computer Science 2022-07-13 Meiyu Zhi

Capsule endoscopy event detection is challenging because diagnostically relevant findings are sparse, visually heterogeneous, and embedded in long, noisy video streams, while evaluation is performed at the event level rather than by frame…

Computer Vision and Pattern Recognition · Computer Science 2026-03-20 Bo-Cheng Qiu , Yu-Fan Lin , Yu-Zhe Pien , Chia-Ming Lee , Fu-En Yang , Yu-Chiang Frank Wang , Chih-Chung Hsu

Weakly supervised video object segmentation (WSVOS) enables the identification of segmentation maps without requiring an extensive training dataset of object masks, relying instead on coarse video labels indicating object presence. Current…

Computer Vision and Pattern Recognition · Computer Science 2024-11-04 Guiqiu Liao , Matjaz Jogan , Sai Koushik , Eric Eaton , Daniel A. Hashimoto

Video action detection (spatio-temporal action localization) is usually the starting point for human-centric intelligent analysis of videos nowadays. It has high practical impacts for many applications across robotics, security, healthcare,…

Computer Vision and Pattern Recognition · Computer Science 2022-11-01 Xin Hu , Zhenyu Wu , Hao-Yu Miao , Siqi Fan , Taiyu Long , Zhenyu Hu , Pengcheng Pi , Yi Wu , Zhou Ren , Zhangyang Wang , Gang Hua

Since first proposed, Video Instance Segmentation(VIS) task has attracted vast researchers' focus on architecture modeling to boost performance. Though great advances achieved in online and offline paradigms, there are still insufficient…

Computer Vision and Pattern Recognition · Computer Science 2022-10-18 Wenhe Jia , Lu Yang , Zilong Jia , Wenyi Zhao , Yilin Zhou , Qing Song

Event-based vision sensors, inspired by biological neural systems, asynchronously capture local pixel-level intensity changes as a sparse event stream containing position, polarity, and timestamp information. These neuromorphic sensors…

Computer Vision and Pattern Recognition · Computer Science 2025-04-02 Tiantian Xie , Pengpai Wang , Rosa H. M. Chan

Achieving a balance between computational efficiency and detection accuracy in the realm of rotated bounding box object detection within aerial imagery is a significant challenge. While prior research has aimed at creating lightweight…

Computer Vision and Pattern Recognition · Computer Science 2024-12-18 Zhifei Shi , Zongyao Yin , Sheng Chang , Xiao Yi , Xianchuan Yu

This study develops a real-time framework for estimating the risk of near-misses by using high-fidelity two-dimensional (2D) risk indicator time-to-collision (TTC), which is calculated from high-resolution data collected by autonomous…

Applications · Statistics 2024-10-16 Mohammad Anis , Sixu Li , Srinivas R. Geedipally , Yang Zhou , Dominique Lord
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