基于ARM和FPGA的Sobel边缘检测异构系统

Heterogeneous system of Sobel Edge Detection Based on ARM and FPGA

为了实现直接对网络摄像监控系统进行视频画面抓取并进行高效率、高精度的图像处理,设计了一个支持RTSP协议、可进行Sobel边缘检测的数据驱动型异构系统。基于海思公司的hi3536芯片,该系统可同时获取16路1080P、H.264编码的网络摄像头的视频图像,并使用Xilinx公司的ZC702型号FPGA为载体实现的Sobel边缘检测加速器对视频图像进行实时处理。实验结果发现该系统获取视频图像的延迟很低,并且拥有对大量高清图像同时进行实时边缘提取的能力。

In order to achieve high-efticiency, high-precision image processing for capturing the video stream of IP camera, a da- ta-driven heterogeneous system with Sobel edge detection is designed to support RTSP protocol.The system can get 1080P, H.264 encoded video streams from sixteen IP cameras at the same time and also can process real-time Sobel edge detection of video streams base on arm from Hisilicon and ZC702 FPGA form Xilinx. Experimental results show that the system has low delay of capturing video streams and can real-time edge detection for a large number of high-definition images at the same time.