单片机控制的图像稳定系统

A SINGLE CHIP MICROCOMPUTER CONTROLLED IMAGE-STABILIZING SYSTEM

提出了用三轴稳像棱镜组进行图像稳定的新方案,并给出了较详细的理论分析、稳像公式和三阶近似的工程稳像公式。该图像稳定系统用单片机进行计算和控制,以一对陀螺作为传感器,用步进电机作为执行元件,驱动三轴稳像棱镜组作补偿运动,形成了一光机电算综合的图像稳定装置。

In this paper, a new method for image stabilization with a three-axis image-stabilizing reflecting prism assembly is presented, and the principle of image stabilization in this prism assembly, formula for image stabilization and working formula with an approximation up to the third power are given in detial. In this image-stabilizing system, a single chip microcomputer is used to calculate values of compensating angles and thus to control the prism assembly. Two gyroscopes act as sensors from which information of angular perturbation is obtained, three stepping motors drive the prism assembly to compensate for the movement of image produced by angular perturbation. The image-stabilizing device so established is a multifold system which involves optics, mechanics, electronics and computer.