基于特征的二维图像拼接法测量几何量

STUDY ON 2-D IMAGE CONNECTION AND ITS APPLICATION IN GEOMETRICAL PARAMETERS MEASUREMENT

:针对单元摄像机受测量范围、测量精度和测量效率制约的问题 ,采用二维图像拼接的方法 ,达到大测量范围、高精度和多参数综合测量的目的 .通过对比不同特征对测量效果的影响 ,提出采用一点一线法进行拼接测量 ,并就一点一线法中点和线的参数值对拼接结果的影响进行了误差分析 ,最后进行了实物几何量测量实验 .

To overcome the limitations in the measuring range,accuracy and efficiency caused by single CCD,a new method of image connection is worked out.It can meet the requirements of large measuring range,high accuracy and multi variables measurement.After comparing the measuring effects caused by different connecting features,the one point and one line (OPOL) method is adopted.The details about OPOL,especially the point and the line,are demonstrated.At last,experimental resuts about 2 D geometrical parameters measurement are shown.