Design of CMOS HD imaging system with adaptive dynamic exposure control based on FPGA

Abstract

With the development of digitalization and high-definition, CMOS image sensor have been widely used in video imaging systems with its advantages of low power consumption, low cost, high integration, and high imaging quality. This paper uses the UV1280 image sensor as the core device to design an FPGA-based adaptive dynamic exposure control CMOS imaging system , including image data acquisition and analog-to-digital conversion, data processing, HDMI interface design and display, combined with adaptive dynamic exposure control program, and realize the miniaturization of imaging system. Experimental results show that the imaging system can perform adaptive dynamic exposure control under the illumination of 104lx~0.86lx with clear real-time imaging effects and high contrast. The video output interface is HDMI, and the effective resolution is 1280*1024@60fps.