摘要
提出并论证了基于二维直接线性变换的畸变的校正方法。本方法特别适用于各类固态摄像机 (CCD、CID、PSD)的畸变模型的建立 。
This paper presents that distortion model could be created for different kinds of digital cameras based on the theory of 2D direct linear transformation by using a accurate 2D control field. The method given in this paper is applied to correct all systematic errors in every pixel or in every interested image point. It is possible to create a digital distortion model to a digital camera with designed lens and given focused object. During 2D transformation four points which are located at the image corners are generally chosen, so the distortions of these points are assumed as zero. The two dimensional control field can be created by using precise drawing table, or can be arranged on the wall with a lot of circular targets measured by on line total stations.
出处
《武汉大学学报（信息科学版）》
EI
CSCD
北大核心
2004年第3期254-258,共5页
Geomatics and Information Science of Wuhan University
基金
国家 8 63计划资助项目 ( 2 0 0 1AA13 10 2 0 )
