Design of an image sampling and processing system based on FPGA and USB bus
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摘要: 構建了以FPGA為核心芯片的高速圖像采集與處理系統,圖形采集頻率可達13.5MHz.在該系統中,采用了視頻A/D芯片SAA7111A將電視信號轉換成數字信號,并由FPGA作為控制器將數字信號存入SRAM中,以便進行處理,提取有用數據;系統還采用了EZUSB2131Q芯片來進行處理后的數據與PC機的傳輸.Abstract: This paper designed an high-speed image sampling and processing system based on FPGA, whose image-sampling frequency was 13.5 MHz. In the system the video A/D chip SAA7111A was employed to convert video data into digital signal, and the digital signal was storied in RAM by FPGA for next processing to obtain the useful data. In addition, the EZUSB2131Q chip was used to transmit the processed data between PC and FPGA.
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Key words:
- video image /
- signal processing /
- FPGA /
- VHDL /
- EZUSB /
- video A/D
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