设计了一种全新架构的多功能一体化模拟摄像机系统。利用FPGA驱动电机实现变倍、光圈控制等功能,并且采用一种改进的灰度差分法作为聚焦评价函数,配合相应的搜索策略来控制步进电机的聚焦方向,实现图像的自动聚焦。

An innovative multifunctional and integrative analog camera system is designed in this paper,which implements zoom control and aperture control with FPGA.The design utilizes an improved gray scale differential algorithm as focusing evaluation function and utilizes a kind of search strategy to control the remove of step-motor,so the image can be auto-focused.