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基于直线约束的非量测数码相机标定
引用本文:杨朝辉.基于直线约束的非量测数码相机标定[J].遥感信息,2010(5):76-79.
作者姓名:杨朝辉
作者单位:苏州科技学院,环境科学与工程学院,苏州,215011
基金项目:苏州科技学院开放实验室建设项目,苏州科技学院实验教学改革与建设项目 
摘    要:提出一种非量测数码相机标定的直接方法。该方法基于直线约束条件,即在正确进行畸变纠正后,物方空间的三维直线投影到像片平面上也应该是一条直线。为了将畸变直线纠正成理想直线,利用畸变模型对其进行畸变纠正,并采用Levenberg-Marquardt算法对非线性方程组进行求解,解出符合条件的最佳畸变参数。实验结果证明该方法具有较强的鲁棒性与实用性。

关 键 词:相机标定  畸变  直线约束  非量测相机

Calibration of Non-metric Digital Camera Based on Line Constraint
YANG Zhao-hui.Calibration of Non-metric Digital Camera Based on Line Constraint[J].Remote Sensing Information,2010(5):76-79.
Authors:YANG Zhao-hui
Affiliation:YANG Zhao-hui(School of Environmental Science and Engineering,Suzhou University of Science and Technology,Suzhou 215011)
Abstract:This paper addresses the problem of calibrating lens distortion of non-metric digital camera.Our approach is based on the line constraint condition,which means the straight line in 3D world must be projected as straight line in the image plane,if the lens distortion is compensated correctly.And a distortion measure is presented that can be optimized using non-linear Levenberg-marquardt algorithm to find the best distortion parameters that straighten curved lines.The given results show the significant improvement of robustness and practicability of the method.
Keywords:camera calibration  distortion  line constraint  non-metric camera
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