摘要
提出了一种新的基于视场边缘距离相对约束条件的摄像机标定方法,并用于大尺寸测量中摄像机的标定,该方法在标定摄像机内外方位参数的同时也完成了成像畸变的校正,将标定结果用于测量,在4×4×1m3的测量视场内,其相对精度达到1/2000,与传统标定方法相比,该标定方法灵活性高,更加适用于测量视场较大的情况。
A new camera calibration method based on the distance constraint located at the edge of the measurement range in videogrammetry was presented. Using an iterative optimization algorithm calculated the interior orientation parameters, distortion parameters and exterior orientation parameters. The calibration method is accessed in a test control field, in the 3 ×4 × 1m^3 range, the relative accuracy of measurement system made up of the calibrated camera is better than 1/2000. In comparison with other calibration method, this method is more flexible and is applicable any case, especially the large-scale videogrammetry.
出处
《光学技术》
EI
CAS
CSCD
北大核心
2007年第1期86-88,共3页
Optical Technique
基金
国家自然科学基金资助项目(50475176)
北京市自然科学基金北京市教委科技发展计划重点项目(KZ200511232019)
机电系统测控北京市重点实验室资助
关键词
摄像机标定
视觉测量
畸变参数
camera calibration
videogrammetry
distortion parameters
