基于FPGA的运动目标实时检测系统设计

Design of real-time target recognition system based on FPGA

摘要:

目标识别是智能安防监控视频处理系统中重要内容,为了满足安防系统小型化实时性等应用需求,本文设计了一种基于FPGA平台的运动目标识别系统。该系统采用 CMOS摄像头作为视频采集器,SDRAM作为视频流缓存及存储介质,FPGA对视频流进行灰度化和帧差法算法处理,并将结果传输至显示器终端,从而实现图像采集和目标识别跟踪和显示。测试结果表明,本系统在一定测距范围内可有效稳定地跟踪运动目标物体,可进一步应用于安防领域中。

Abstract:

Target recognition and tracking is an important part of intelligent security monitoring video processing system. In order to satisfy the requirements of real-time and miniaturization, a target recognition and tracking system based on FPGA is designed in this paper. In the system, the CMOS digital camera is used to collect original video data, and the off-chip SDRAM is the video stream buffer and storage medium. The image processing part is completed by FPGA, including gray processing, inter-frame difference method, and the results are transmitted to the display terminal to realize the video acquisition, target recognition, tracking and display. The test results show that the whole system can track the target object effectively and stably. It can be further applied to security monitoring system.