Patent ID: 9605961
Date: 2017-03-28
CPC Classifications: G01B,G01C

Claim:
1. An information processing apparatus comprising: an input unit configured to input image data of a target object, onto which a pattern has been projected by a projection apparatus and which has then been photographed by an imaging apparatus, wherein the pattern varies in luminance only in a predetermined direction; an association unit configured to associate a two-dimensional coordinate (x′ a first correction unit configured to obtain a first corrected two-dimensional coordinate (x a first viewing vector-deriving unit configured to derive a first viewing vector which is through the first corrected two-dimensional coordinate (x a second correction unit configured to obtain a second corrected two-dimensional coordinate (x′ a second viewing vector-deriving unit configured to derive a second viewing vector which is through the second corrected two-dimensional coordinate (x′ an intersection coordinate-deriving unit configured to derive coordinates of a point, in a three-dimensional space, of intersection between the first viewing vector and the second viewing vector.