New method of calculating a cross-section area of an object from images
Fan Yin, Dezong Wang · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 1995
In computer vision, there are many methods to obtain 3D information of objects from images. But the forms of 3D information are different from different methods. For example, in the way of shape from shading, orientation of surface normal can be obtained; in the way of stereo vision, 3D coordinate of points on the object can be obtained. This paper proposes a new method to calculate cross-section area of the object from surface normal by fitting curve. The new method is more precise than old method.