摘要
结合人眼光学建模和计算机图形学的真实感绘制技术,提出一种基于Navarro示意眼模型的人眼视觉真实感绘制方法。利用Navarro模型与传统的单透镜模型相比能够更精确地模拟人眼的特性,将Navarro模型引入视觉真实感绘制中;采用光线追踪方法,加入非球面折射面的计算,精确地模拟人眼的成像特性。实验结果表明此种方法能够更精确地模拟人眼的视网膜成像,通过更改模型参数也能够灵活地模拟人眼在不同视觉缺陷下的成像。
Combining human eye modeling technology and realistic rendering of computer graphics,this paper proposed a vision-realistic rendering method based on Navarro schematic eye model.Compared with the previous single lens model,Navarro＇s model could simulate more vision characteristics of human eye.Based on Navarro＇s model,utilizing the distributed ray tracing,and compute aspheric surface ray path,simulated more accurate retinal image.Further more,by adjusting the shape parameter of cornea and lens,to change the total diopter of the eye,rendered retina images with exact myopia and hyperopia of different levels.The experiment results indicate that this method can generate more realistic retina images reflected vision characteristics of the human eye,and by adjusting the parameter of the model,it can easily simulate the eye defect.
出处
《计算机应用研究》
CSCD
北大核心
2011年第8期3124-3127,3130,共5页
Application Research of Computers
基金
国家"863"计划资助项目(2009AA01Z303)
关键词
示意眼模型
真实感
视觉缺陷
光线跟踪
schematic eye model
vision realistic
eye defect
ray tracing
