数码摄影物镜设计外文翻译(编辑修改稿)

数码摄影物镜设计外文翻译(编辑修改稿)内容摘要：

gns in front of a regular camera,and focusing it slightly behind the array. The idea for this design is based on the fact that the image inside any camera is 3dimensional,and is a distorted copy of the outside is clear that the structures we place inside the camera have their corresponding structures in the outside world .This is based on the 1to1 mapping defined by the main camera lens. The idea of replacing the array of pinholes in front of the film with lenses was first proposed by Lippmann back in 1908 [3]. Just as with a single pinhole camera, lenses gather much more light and produce better image quality than small holes. Lipmann called his approach Integral photography. Different versions of it have been proposed throughout the years, the most recent one being the plenoptic camera [6,14]. Our analysis of the integral camera in frequency space will be done in two steps. (1) We consider an array of pinholes as in the Ives’ camera, only shifted by a constant (for all pinholes) vector a. Each pinhole is covered by a prism with angle of deviation depending on the shift, defined as prism = a/f .(2) We consider the superposition of multiple shifted arrays of such pinholeprisms, and show that they all contribute to the final image。