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基于视频融合的人车目标检测算法
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作者 李杲阳 杜娟 +2 位作者 张磊 蒋长帅 王二红 《物联网技术》 2024年第12期11-14,共4页
近年来,房屋周围的人车目标检测算法作为智慧安防领域中的重要部分,备受研究人员的关注。智慧安防中涉及的目标检测任务需要具备隐蔽性、实时性、持续性、丰富性等特点。根据这些特点,针对人车目标在白天与夜晚的不同特征,设计了一种基... 近年来,房屋周围的人车目标检测算法作为智慧安防领域中的重要部分,备受研究人员的关注。智慧安防中涉及的目标检测任务需要具备隐蔽性、实时性、持续性、丰富性等特点。根据这些特点,针对人车目标在白天与夜晚的不同特征,设计了一种基于红外与微光视频融合的人车目标检测算法,该算法采用改进的YOLO-FastestV2目标检测算法,解决了基于红外与微光视频融合下人车目标的快速检测难题,可以较隐蔽地持续捕获行人与车辆目标。在智能分析处理模块利用声振探测器与AI智能分析联合判断,能够有效应对周围环境的干扰。经验证,该算法抗干扰能力强,准确性高,具有较好的应用价值。 展开更多
关键词 智慧安防 目标检测 视频融合 YOLO-FastestV2 AI智能分析 声振探测器
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Surface acoustic wave-based ultraviolet photodetectors: a review 被引量:3
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作者 Yi Zhang Yao Cai +7 位作者 Jie Zhou Ying Xie Qinwen Xu Yang Zou Shishang Guo Hongxing Xu Chengliang Sun Sheng Liu 《Science Bulletin》 SCIE EI CAS CSCD 2020年第7期587-600,M0004,共15页
Over the past decade, ultraviolet(UV) detection has been a subject of major interest for both research scientists and engineers because of its important applications in both the civil and military fields. The rapid de... Over the past decade, ultraviolet(UV) detection has been a subject of major interest for both research scientists and engineers because of its important applications in both the civil and military fields. The rapid development of interdisciplinary research has enabled the realization of UV detectors based on a variety of principles. Among these devices, UV detectors based on surface acoustic wave(SAW) technology offer unique advantages of remote wireless operation capability and zero power consumption. This article provides a comprehensive review of the working principles, important parameters, and the acoustic wave and materials types used in SAW-based UV detectors. The research and development status of these detectors are discussed and the most commonly used methods to optimize device performance are also summarized. Novel types of acoustic UV detectors based on thin film bulk acoustic resonators(FBARs)and Lamb wave resonators(LMRs) are briefly introduced. Finally, future development challenges are proposed and suggestions for future directions are provided to aid the development of this important research field. 展开更多
关键词 Ultraviolet detector Surface acoustic wave Sensitive material PIEZOELECTRIC
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