A wide-spectrum and high-speed CMOS system based on FPGA

As we all know, CPU/GPU/DSP are the platforms where the most of the image processing in cameras base on, however with the Field Programmable Gate Array (FPGA) shows more advantages there are more and more digital cameras designed with it. In this paper, a wide-spectrum and high-speed CMOS system is proposed using FPGA. Further, DDR3 circuit is also used to cache a full frame information without data loss. At the same time, USB3.0 is used as the data transmission interface in the system. The specific implementation processes on FPGA consist of the CMOS driving module between main board and sensor board as well as a series of video processing pipeline implemented with FPGA. Finally, the system displays a 2048*2046 pixel resolution and has a frame frequency of 22fps, which can detect the wavelength between 200nm and 1100nm with the dynamic range over 90dB. The experimental result shows that the FPGA-based wide-spectrum and high-speed CMOS system can increase the video frame rate and achieve excellent imaging quality.