基于信息融合的人眼波前像差测量  

Measurement of Human Eye′s Aberrations Based on Information Fusion

作　　者：张培茗[1] 陈家璧[1] 庄松林[1] 

机构地区：[1]上海理工大学光学与电子信息工程学院,上海200093

出　　处：《中国激光》2009年第10期2571-2576,共6页Chinese Journal of Lasers

基　　金：国家973计划(2007CB935303;2005CB724304);国家自然科学基金(60778031);高等学校博士点基金(20050252004)资助课题

摘　　要：设计并实现了结合客观和主观的方法测量人眼波前像差。建立了主客观结合的人眼波前像差测量系统,客观测量在瞳孔自然扩大时通过4.8 mm人造瞳孔进行测量,主观测量是在被测者观察视标的过程中进行。实验获得了活体人眼主客观测量的像差,两种方法的测量结果在特征级进行加权信息融合,这种方法结合了主客观测量的特点,能够较准确反映出人的视觉质量,为个性化的人眼视觉矫正提供更合理的指导。An optical setup was proposed and realized to integrate the two methods combining objective with subjective in a system to survey human eye wave-front aberration,which can measure the human eyes′ wavefront aberration with 4.8-mm artificial pupil when the natural pupil is dilated as objective measurement and the subject is watching optotypes as subjective measurement. The result datum from both objective measurement and subjective measurement is fused on feature level by information fusion method with the weighting factors,which is helpful to emphasize the advantages of both subjective and objective measurement. Considering the influence of neural system on human eyes,the fusion result can reasonably reflect subject＇s visual quality and give more detailed advices for ideal corneal customized ablation of human eyes.

关 键 词：几何光学 信息融合 波前像差 客观测量 主观测量 

分 类 号：O435.2[机械工程—光学工程]