The significance of background information is frequently overlooked in contemporary research concerning channel attention mechanisms. This study addresses the issue of suboptimal single-spectral nighttime pedestrian detection performance under low-light conditions by incorporating background information into the channel attention mechanism. Despite numerous studies focusing on the development of efficient channel attention mechanisms, the relevance of background information has been largely disregarded. By adopting a contrast learning approach, we reexamine channel attention with regard to pedestrian objects and background information for nighttime pedestrian detection, resulting in the proposed Fore-Background Contrast Attention (FBCA). FBCA possesses two primary attributes: (1) channel descriptors form remote dependencies with global spatial feature information; (2) the integration of background information enhances the distinction between channels concentrating on low-light pedestrian features and those focusing on background information. Consequently, the acquired channel descriptors exhibit a higher semantic level and spatial accuracy. Experimental outcomes demonstrate that FBCA significantly outperforms existing methods in single-spectral nighttime pedestrian detection, achieving state-of-the-art results on the NightOwls and TJU-DHD-pedestrian datasets. Furthermore, this methodology also yields performance improvements for the multispectral LLVIP dataset. These findings indicate that integrating background information into the channel attention mechanism effectively mitigates detector performance degradation caused by illumination factors in nighttime scenarios.
Camo-M3FD: A New Benchmark Dataset for Cross-Spectral Camouflaged Pedestrian Detection
ESPOL Polytechnic University(ESPOL理工大学);Computer Vision Center, Universitat Autònoma de Barcelona(巴塞罗那自治大学计算机视觉中心);Software Engineering Department, Research Center for Information and Communication Technologies (CITIC-UGR), University of Granada(格拉纳达大学软件工程系,信息与通信技术研究中心(CITIC-UGR));Università della Svizzera Italiana(瑞士意大利大学)
Improved YOLOv5 Based on Attention Mechanism and FasterNet for Foreign Object Detection on Railway and Airway tracks
Stevens Institute of Technology(史蒂文斯理工学院);Northern Arizona University(北亚利桑那大学);University of Electronic Science and Technology of China(电子科技大学);Shenzhen SmartChip Microelectronics Technology Co., Ltd.(深圳市智芯微电子技术有限公司)