Research On Video Face Detection System Based On FPGA

The video processing technology has been widely used in security monitoring, video communication and intelligent human-computer interaction field, and the requirement for the processing speed is very high, especially in mobile video. Along with the continuous development of FPGA technology, the speed of parallel computing is becoming faster and the integration degree is getting higher. These characteristics prompts the performance of FPGA is very prominent, also makes the FPGA becomes the import solution of real-time video processing.In order to realize the real-time processing of the high definition (HD) video, this paper presents a design scheme of image processing system for HDMI HD video stream based on FPGA. A ZYBO development board of Xilinx company’s Zynq series products with a high performance was used in this paper. System design process consists of 4 parts:configuration of processing_system processor, IP core design of HDMI interface for video input and VGA interface for output, IP core design of image processing and application programmer design. By taking the processing_system processor as processing core, the embedded hardware platform in the ZYBO development board is constructed by adding on-chip peripherals interface and designing an IP core of HDMI interface for input and VGA interface for output.According to the requirements of system, this paper introduces the overall scheme of system, the FPGA chip and the video input and output module. The development of hardware IP core was finished based on Xilinx Platform Studio platform in hardware constructer. The codes through Verilog hardware description language were modified for video processing IP core that can be utilized by ZYBO. Then the software programming is completed in the Xilinx Software Development Kit platform that realizes the control function of video playback. The experimental results show that, the system can process the HD video(1280 X 720p/60Hz), and output the image to display through VGA interface when the system working frequency is 650MHz.