视觉测量中的一种线性摄像机标定方法

Linear algorithm method of camera calibration on computer vision measurement

视觉测量中成像模型的求解速度和效率是测量关键。在考虑径向准直约束的条件下,利用预先标定好的图像尺度因子,采用一幅图像对摄像机的外部参数、有效焦距、径向畸变进行标定,标定过程中,每一步均用线性方程组求解。该方法求解过程快速,结果准确,适合视觉测量中对摄像机的不定期标定。

The efficiency and accuracy of the solution to the model of computer vision are keys to measurement. On the radial alignment constraint condition, the image scale factor has been calibrated. The camera external parameters effective focal length and the radial lens distortion can been calibrated with one image. This method gives the solution through the linear algorithm and the result is accurate, rendering it applicable to the aperiodic camera calibration on the computer vision measurement.