一种CMOS图像传感器自动曝光算法的设计及实现  

Implementation and Design of CMOS Image Sensor Exposure Algorithm

作　　者：谭艳丽[1] 赵永强[1] 

机构地区：[1]太原工业学院电子工程系,山西太原030008

出　　处：《电视技术》2015年第3期46-49,共4页Video Engineering

摘　　要：针对传统自动曝光算法收敛时间长的问题,设计了一种基于对分搜索的CMOS图像传感器自动曝光控制算法,研究了基于CMOS图像的测光方法,给出了自动曝光算法的流程。首先在MATLAB中对算法进行了仿真,并和传统算法进行了比较,曝光收敛时间缩小了一半。最后在基于FPGA的CMOS图像采集平台上对算法进行了实现,实验证明了该算法的有效性。To the convergence time problem of the traditional auto exposure algorithm, a auto exposure algorithm for CMOS image sensor based on binary search is studied in this paper. Firstly, the photometric method based on CMOS image is proposed and the algorithm flow chart is given. Then the algorithm is simulated in the MATLAB and compared with the traditional algorithm which shows that the convergence time is reduced by half. At last, the algorithm is implemented on CMOS image acquisition platform based on FPGA, the experimental results show the effectiveness of the algorithm.

关 键 词：自动曝光 对分搜索 CMOS 图像采集 

分 类 号：TN919.81[电子电信—通信与信息系统]