A calibration methods for Vision measuring system with large view field
Images with severe geometrical distortions, which are induced by camera lens and position, must be corrected before extracting quantitative measurements. This paper presents a simple and efficient method of calibrating the intrinsic camera parameters to correct the non-linear distortion. We fix the aperture setting and perform the camera calibration. A plate with many circles is used as the calibration object. These circles are used as the calibration patterns. The centroids of the circles in the image are gotten as the image coordinates of the calibration data. The calibration parameter of measurement system is calculated according to the calibrated points in the center part Our experiments show that the proposed method can provide accurate intrinsic camera parameters and correct the image distortion.
machine vision distortion correction camera parameter non-linear calibration image segmentation
Feng Guanming Zhu Liangrong Zou Huadong Wu Nianxiang
Department of electronics engineering Zhejiang Industry Polytechnic College SHAOXIN, China Department of electronic engineering Anhui Vocational College of Defense Technology Lu An ,China Department of electronic engineering Anhui Vocational College of Defense Technology Lu An .China
国际会议
2011 4th International Congress on Image and Signal Processing(第四届图像与信号处理国际学术会议 CISP 2011)
上海
英文
1398-1401
2011-10-15（万方平台首次上网日期，不代表论文的发表时间）