For the special condition and high precision requirement of the LED chip sorting system, the model of vision calibration is built and calculated.
本文针对LED芯片分选系统的成像系统的特殊条件及较高的精度要求，进行了视觉定标模型的计算和构建。
2
The traditional linear model in the camera calibrationof head position tracking has a relatively lower calibration precision while the exact head position parameters cannot be obtained.
在头位跟踪的摄像机标定中，传统的线性模型标定精度低，不能精确获得头部位置参数。
3
This paper analyses the influences of every error source of the precisionof CMM. Establish the error model of CMM, and design different method of error calibration for different error source.