本文介绍了一种基于CMOS图像传感器和CPLD的光电纠偏控制系统的设计思想与测控原理,提出了浮动阀值法和差值量化算法等二值化处理方法,并给出了具体的硬件与软件实现方案。实验证明该纠偏控制器具有体积小、集成度高、纠偏控制精度高等特点。 In this paper, a design idea and measurement principle of photoelectric correction control system based on CMOS image sensor and CPLD are introduced. The binary methods such as floating threshold method and difference quantization algorithm are presented. The hardware and software Realize the program. Experiments show that the controller has the advantages of small size, high integration, high precision correction control.