TVdistortion是等比例放大失真，是线性的的关系。所以并没有变形。 bZ5n,KQA5 这个要结合distortion的曲线和grid一块看。 m,6h ee 我猜是这样的
wuchaocumt
2009-05-19 14:37
17楼的是正解！！
hit1001
2009-06-11 18:52
学习了 长知识了 谢谢哈
jacqueline
2010-10-09 10:53
转一个光学设计论坛里的帖子 f=_ g8+}h +/ N1_ 在光学设计中有人经常碰到这样的问题，光学镜头的指标中有两项对于畸变的要求 =AkX4k kk_zVrQ< 一个是DISTORTION，另一个是TV DISTORTION 0dt"ZSm Y5%;p33uFG 其中的TV 畸变很多人不知道它的含义，再此给大家提供以下信息供参考，看了之后TV 畸变的概念就很清楚了 I'InZ0J2 c@OP5L>{ pxplWP, RVF F6N^ What is distortion? _*`q(dY cf Distortion is the ratio of the change between the center and edge areas of a captured image. Due to the aberration of the lens, the distortion is more noticeable at the edges of a captured image. There are two types of distortion: barrel distortion and pincushion distortion. The general rule is that when the absolute value of the distortion value is smaller, the lens offers higher accuracy. ScJu_A f v5 Y)al@ Calculating formula _rjB c ;a TV distortion (Dtv) = Δh/2h x 100 (%) 'Y)/~\FI A positive value of TV distortion indicates 8=4^Lm pincushion distortion and a negative value a4by^ indicates barrel distortion. yN:>!SQ 3o0IjZ=[> 原帖网址：http://www.opto-tech.com/read.php?tid-3086.html l1RlYl5 @ ;J|xkJ
