METHOD AND SYSTEM FOR RELIABLE 3D SHAPE EXTRACTION OF METAL SURFACE

摘要

The present invention relates to a method and system for reliable 3D shape extraction of a metal surface. In this method, images are acquired at the same time by simultaneously irradiating interference-free polarized lights to a metal object. A photometric stereo method is then applied based on the images except for images which make the extraction of a 3D shape of the metal object inaccurate.

主权项

1. A method of extracting a three-dimensional (3D) shape, the method of comprising:
simultaneously irradiating, to a target object, n polarized lights of n wavelengths and another n differently polarized lights of the same wavelengths as the n polarized lights, and acquiring 2n two-dimensional (2D) images corresponding to the 2n lights, n denoting a natural number satisfying n≧3; and extracting a 3D shape of a surface of the target object by synthesizing at least three images among the 2n 2D images.