GPU Based Ray-Tracing And Virtual-Eye Optic Simulation

Modeling and simulation of virtual organs is a very popular research do-main of modern biomedical engineering. As one of the most important organsof human body, the virtual model and simulation system of human eyes hasvery important theory meaning and application value for the ophthalmologicalphysiology, pathology, and clinic.As a part of research on Chinese Virtual-Eye Functional Model and Simula-tion System, this paper would focus on fundamental technique and constructionof virtual-eye optic simulation system. A GPU based approach to Ray-Tracingalgorithm is established in this paper after analysis and discussion of modernGPGPU conception and technical details. Then, the implementation of opticsimulation system of virtual-eye, is constructed, which provides the fundamentfor further functional studies of virtual eye research.The main contents and contributions of this dissertation are as follows:1. After review and analysis of the GPGPU's conception, implementation andlimit, a original general computing framework for GPGPU is constructed,in order to provide an simple standard and ease the di?culty of writingGPU code for scientists.2. Introduce Ray-Tracing algorithm as a new approach into research of virtual-eye optic simulation. Provide an GPU based implementation of Ray-Tracing, which shows quite good performance.3. Integrate the traditional Gullstrand-Emsley Eye with corneal topographicand parametric modeling of crystalline lens, and construct a virtual-eyeoptic simulation system based on GPU Ray-Tracing.