基于图像处理的人眼离焦量的动态补偿系统  

Developing Dynamic Compensation System for Eye Defocus Based on Image Processing

作　　者：张中祥 许崇祥 燕卫江 苏宇锋[1] 贾志刚 Zhang Zhongxiang;Xu Chongxiang;Yan Weijiang;Su Yufeng;Jia Zhigang(School of Mechanical and Power Engineering,Zhengzhou University,Zhengzhou 450001,Henan,China)

机构地区：[1]郑州大学机械与动力工程学院,河南郑州450001

出　　处：《激光与光电子学进展》2023年第24期252-257,共6页Laser & Optoelectronics Progress

基　　金：NSFC-河南联合基金项目(U1904169)。

摘　　要：目前常用的屈光不正的矫正方式都是针对人眼像差的某一静态值进行矫正,无法对人眼像差的动态变化进行有效矫正。为了解决这一问题,开发了一种基于图像处理的人眼离焦量的动态补偿系统,其以红外相机和图像处理程序组成的瞳孔大小动态测量系统、透射式变形镜和控制程序组成的屈光力动态矫正系统为核心。在光学实验平台上搭建出系统原型,并展开实验。实验结果表明,所提系统能够在不同光强条件下实现对人眼瞳孔大小的准确测量及对应离焦像差的准确、快速、平滑的矫正,初步证实了所提系统的有效性。The commonly used correction methods of ametropia are all focused on correcting a certain static value of human-eye aberration;however,these methods cannot effectively correct the dynamic changes in human-eye aberration.To solve this problem,a dynamic compensation system is developed to correct the eye’s defocusing of humans based on image processing.The system consists of a dynamic measurement system for pupil size composed of an infrared camera and an image processing program,and a dynamic correction system for refractive power composed of a transmission deformable mirror and a control program as the core.The system prototype is built on the optical experimental platform,where the corresponding experiments are performed.The results show that the system can assess the accurate measurement of the pupil size and ensure an accurate,fast,and smooth correction of the corresponding defocus aberration under different light intensities,thereby preliminarily confirming the feasibility and effectiveness of the proposed method and system.

关 键 词：人眼像差 动态矫正 图像处理 透射式变形镜 

分 类 号：TP272[自动化与计算机技术—检测技术与自动化装置]