Patent ID: 8456621
Filing Date: 2013-06-04
Classification: G01B

Abstract:
1. A measurement system comprising: an irradiation unit configured to irradiate a measurement target with predetermined pattern light at a predetermined incident angle; a reception unit configured to receive, at a reflection angle substantially equal to the incident angle, reflected light of the pattern light irradiating the measurement target; a first extraction unit configured to extract information about a surface shape of the measurement target in a region irradiated with the pattern light; a second extraction unit configured to extract, as information about a scattering characteristic of the measurement target in the region irradiated with the pattern light, information about a luminance value of the reflected light received by said reception unit; and a control unit configured to control at least one of a phase, a wavelength, and a polarization of the pattern light emitted by said irradiation unit on the basis of the information about the scattering characteristic of the measurement target that is extracted by said second extraction unit.