Patent ID: 7391522
Filing Date: 2008-06-24
Classification: G01B,G06T

Abstract:
1. A three-dimensional shape detecting device comprising: a projector which projects pattern light; an image capturing unit which captures a pattern light projection image of a subject on which the pattern light is projected; a pattern light position extracting unit which extracts a position of the pattern light projected on the subject based on the pattern light projection image captured by the image capturing unit; a three-dimensional shape calculation unit which calculates three-dimensional shape of the subject based on the position of the pattern light extracted by the pattern light position extracting unit; a storage unit which stores color value data of the pattern light projection image captured by the image capturing unit; a hue parameter calculation unit which calculates hue parameters corresponding to a main hue forming the pattern light in units of pixels based on the color value data stored in the storage unit; a luminance parameter calculation unit which calculates luminance parameters in units of pixels based on the color value data stored in the storage unit; and a pattern light detecting unit which detects pixels representing the pattern light from the pattern light projection image by use of the luminance parameters calculated by the luminance parameter calculation unit and the hue parameters calculated by the hue parameter calculation unit, wherein: the pattern light position extracting unit extracts the position of the pattern light based on the pixels representing the pattern light detected by the pattern light detecting unit.