Patent Document ID: 20090040532
Application ID: 11659099
Patent Status: 0

Claim One:
1. Apparatus for shape measurement, comprising a laser projecting device, said device comprising at least one line laser light source, and a single image capturing device, comprising: (a) means for detecting at least one intersection from an image sequence captured by said image capturing device fixed stationarily while waving said laser projecting device, said intersection being lit by multiple line lasers on at least one image; (b) means for providing a plurality of equations, said equations being derived from the fact that a line of sight and a laser plane meet at the intersection by using unknown parameters of 3D position of the intersection and the laser plane, said laser plane being a plane representing said line laser; and (c) means for calculating the 3D position of the intersection and 3D position of the laser plane by solving simultaneous equations made of said plurality of equations.