实时视频信号处理的实时性和跟踪算法的复杂性是一对矛盾,为此采用DSP+FPGA的架构设计,同时满足实时性和复杂性的要求,提高了系统的整体性能.DSP作为主处理器,利用其高速的运算能力,快速有效地处理复杂的跟踪算法;FPGA作为协处理器,完成视频图像的接收、存储、预处理,使设计具有更大的灵活性.系统采用了形心跟踪和相关跟踪两种算法.实验证明,该系统可以稳定地实时跟踪运动目标.
Focusing on the contradiction of the real-time image processing and real-time tracking in the real-time video signal processing system, a new real-time image processing system based on DSP and FPGA which can improve the system performance was introduced. DSP was used as the main processor to fast and effectively handle the complex recognition tracking algorithm because of its high-speed operation ability. FPGA was used as coprocessor to complete video image receiving, storing, preprocessing, etc. to make the design more flexibly. The centroid tracking and relevant track algorithm were adopted in the system.Experimental results showed that the system can track the moving targets in real-time quickly and stably.
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