數(shù)碼攝影物鏡設(shè)計外文翻譯(編輯修改稿)
2025-06-26 01:17 本頁面
【文章內(nèi)容簡介】 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 ?lm with lenses was ?rst 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. Di?erent 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, de?ned as prism = a/f .(2) We consider the superposition of multiple shifted arrays of such pinholeprisms, and show that they all contribute to the ?nal image
畢業(yè)設(shè)計相關(guān)推薦
鄂ICP備17016276號-1