Video surveillance fall detection and alarm system in FPGA

被引：0
|
作者：
Wang P. [1 ]
Wang H. [1 ]
Kong F.-N. [1 ]
Yao G. [1 ]
机构：
[1] School of Electric and Electronics Engineering, Harbin University of Science and Technology, Harbin
来源：
Dianji yu Kongzhi Xuebao/Electric Machines and Control | 2019年 / 23卷 / 08期
关键词：
Fall detection; Field programmable gate array; Frame subtraction method; General packet radio service; Video surveillance;
D O I：
10.15938/j.emc.2019.08.015
中图分类号：
学科分类号：
摘要：
As the injury caused by falling is usually serious for the elderly living alone, it is necessary for them to get timely assistance. This paper is to build a FPGA-based hardware implementation of fall detection and alarm system based on video surveillance. Firstly, the moving object contour was extracted through frame subtraction method. Secondly, the fall case can be judged from the aspect ratio and effective area ratio of bounding box. Finally, the result was modified based on the change of body centroid. Then the detection system made sound and light alarms and sent messages to the elder's family or the community via general packet radio service (GPRS). The experimental results demonstrate the frame processing speed is 24.86 fps and the average response time for alarming is 0.51 s. Besides, the accuracy of this fall detection system is up to 96%. This system satisfices the requirement of real-time and the error alarm rate is low. © 2019, Harbin University of Science and Technology Publication. All right reserved.
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页码：122 / 128
页数：6
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