In the system of measuring Angle of phase interferometer, it is considered that the impact brought by baseline obliquity on phase can be eliminated by equivalent baseline from geometric projection.
According to the image data possessed, the formation model of equivalent line central projection is adopted to establish the correspondence between image and object space.
根据现有资料情况，确定了采用等效线中心投影的构像模型作为几何处理的数学基础。
3
The existing algorithms include equivalent left and right curve Angle by definition, normal section line method and tangent projection etc.