Patent ID: 9516296
Filing Date: 2016-12-06
CPC Classification: G01B,G06T,H04N

Claim Text:
1. A system for extracting a three-dimensional (3D) shape of a high-temperature metal surface, comprising: a light source device for emitting four non-interfering light beams comprising a first two polarized lights of different wavelength bands and a second two polarized lights of the same wavelength bands as the first two polarized lights, wherein the different wavelength bands are wavelength bands differing from that of light emitted from a high-temperature target metal object; an image acquisition device for simultaneously radiating the four light beams polarized by the light source device onto the target metal object, thus acquiring two-dimensional (2D) images of the target metal object from the four light beams, respectively; and an image processing device for combining the 2D images acquired by the image acquisition device using a photometric stereo technique, and extracting a 3D shape of a surface of the target metal object.