摘要
利用透视变换原理建立双目立体摄像机数学模型,全面考虑了镜头的径向畸变和切向畸变,提出一种线性求解摄像机参数的标定方法,改变了以往的摄像机标定依赖于非线性优化的缺点,避免了非线性优化的不稳定性。该标定方法在单摄像机模型的基础上,加入对双摄像机相对位置的确定,通过成像过程中坐标系之间的转换,较好地实现了双目立体摄像测量系统的标定。
This article sets a mathematical model of binocular stereo cameras using the perspective projection transformation theory, it takes a comprehensive consideration of the radial and tangential distortion of the camera, put forward a linear approach of calibration. This method has changed the disadvantage that camera calibration have to depend on the tradition nonlinear optimization, and avoid obtaining unstable solution under common experiment conditions. On the basis of single camera calibration, this calibration add the relative orientation and location between the two cameras into the model, by the transition between the coordinate systems in the imaging process, it realizes the calibration of the binocular stereo vision measurement system.
出处
《电子技术应用》
北大核心
2011年第1期84-86,94,共4页
Application of Electronic Technique
关键词
摄像机标定
双目立体摄像
镜头畸变
camera calibration
binocular stereo vision
lens distortion
