摘要
光学系统的畸变除了利用像差理论来实现校正外，还可以利用数字图像处理技术来进行校正。这为某些受其他条件的限制，很难用像差校正方法来实现其畸变校正的光学系统，如内窥镜光学系统和机器视觉光学系统等，提供了另一种畸变校正的方法。在讨论利用数字图像处理技术进行畸变校正的理论后。接着详细介绍了点阵样板校正方法，并给出校正实例。最后，为了评价校正的精度，文中分析了校正的主要误差来源，并通过比较校正前后视场各位置的畸变量来考察校正的效果。
? In addition to using the aberration correction theory, optical distortion can be corrected with the digital image processing technology. This is suitable to some optical system such as the optical system for endoscope and machine vision, which distortion is difficult to be corrected through normal optical method because of some kind of limitation. Firstly, We discussed the correcting theory by the digital image processing technology. Then, the correcting method was introduced. To assess the accuracy, we analyzed the source of the correction error. And the correction evaluation were proposed to measure the error.
出处
《光学学报》
EI
CAS
CSCD
北大核心
1998年第8期1108-1112,共5页
Acta Optica Sinica
基金
天津市自然科学基金资助(项目号:953701111)
关键词
畸变校正
几何畸变
灰度校正
内窥镜
广角物镜
distortion correction
geometrical distonion
gray correction
endoscope
wide angle objective lens
