An Improved Algorithm for X-corner Detection
X-corner detection is widely used in camera calibration. In this paper, a new algorithm for Xcorner detection is proposed to cope with the problems of central symmetry and the light and dark alteration in the four regions around the center. The position of the corner can be determined exactly by detecting the change of the image gray and computing the correlation coefficient of the symmetry regions through the presented algorithm. Experiments show that the algorithm is easily implemented with the less computational cost. Furthermore, it is robust to the rotation transformation and brightness alteration of the X-corner image and is insensitive to the noise of the image.
Chessboard Corner Detection Camera Calibration
Fuqing Zhao Chunmiao Wei
School of Computer and Communication, LanZhou University of Technology Lanzhou, China
国际会议
2010 International Conference on Advanced Mechanical Engineering(2010年先进机械工程国际学术会议 AME 2010)
洛阳
英文
750-753
2010-09-04（万方平台首次上网日期，不代表论文的发表时间）