The differential spectral matching factor M of the thermal imaging system for detecting low temperethe plane targets in short distance has ho derived in this paper.
导出了适用于近距离面目标热成像系统的微分光谱匹配因数（亦称质量因数）且。
2
By using calibrated image, it can measure plane absolute displacement of worktable automatically via feature point extraction and gray vector matching.
该方法采用事先通过标定的图像，对自然标志(特征点)的提取和基于灰度向量匹配来完成绝对位移的测量。
3
The corresponding points between surface of scene, projection plane and camera image plane are worked out by matching subsequence in the designed sequence.