测试技术学报2018，Vol.32Issue(2)：119-124,6.DOI:10.3969/j.issn.1671-7449.2018.02.005
三维场景的光场成像仿真
Light Field Photography Simulation of Three-dimensional Scene
摘要
Abstract
In view of the difficulty of obtaining light field data,this paper designs a simulation method of three-dimensional light field information acquisitions according to the theory of light field rendering of Levoy.On the problem of constructing an obj ect space,selected as a starting face,the surface of the ob-j ect closest to the main lens is extended backward to form a discrete space.In order to solve the occlu-sion problem of close shot to long shot,according to the Pyramid model,starting with the closest sur-face to the main lens,the effective areas of the surfaces behind is gradually extended and the integral values of the discrete surfaces'effective areas behind main lens are calculated.For the defocus point,the corresponding proportion of the light intensity is given to the corresponding pixels in the microlens by calculating the weight of light spot on each microlens.Finally,refocusing different distances of the light field image obtained by the simulation experiment is done to verify the correctness of constructing a three-dimensional scene and the light field imaging simulation.Experimental results show that the light field photography method of the three-dimensional scene presented in this paper can effectively obtain the light field data of the scene.关键词
成像系统/光场成像/三维成像/微透镜阵列/重聚焦Key words
imaging systems/light field photography/three-dimensional imaging/microlens array/refo-cusing分类
数理科学引用本文复制引用
刘严羊硕,潘晋孝,潘毅华,刘宾..三维场景的光场成像仿真[J].测试技术学报,2018,32(2):119-124,6.基金项目
电子测试技术国防科技重点实验室基金资助项目(61420010401) （61420010401）
