Three-dimensional shape-measuring system

A three-dimensional shape-measuring system, which measures a three-dimensional shape of a measuring subject by using a light section method, comprising:

• a first light projector which directs first laser light to said measuring subject so as to allow said first laser light to scan the surface of said measuring subject;
• a second light projector which directs second laser light to said measuring subject so as to allow said second laser light to scan the surface of said measuring subject;
• a light receiver which receives first reflected light derived from said first laser light reflected from said measuring subject and second reflected light derived from said second laser light reflected from said measuring subject;
• and
• a calculator which calculates a three-dimensional shape of said measuring subject based upon data obtained from said light receiver,
• wherein first base length connecting said first light projector and said light receiver has a first base length direction and second base length connecting said second light projector and said light receiver has a second base length direction, said first base length direction and said second base length direction being set in non-parallel with each other.

A three-dimensional shape-measuring system, which directs laser light to a measuring subject placed in a measuring space from a plurality of directions by using a light projector so that a light receiver detects reflected light derived from said laser light from said light projector reflected by said measuring subject to generate a three-dimensional shape data of said measuring subject, comprising:

• a controller which, prior to measurements on said measuring subject, controls said light projector and said light receiver so as to measure a calibration-use subject placed in said measuring space from said plurality of directions;
• a data processor which finds a conversion parameter used for converting measured data related to said calibration-use subject, obtained respectively in said plurality of directions, to three-dimensional shape data in a world coordinate system;
• and
• a memory storing said conversion parameter;
• wherein
• said three-dimensional shape data is generated by data-converting said measured data related to said calibration-use subject, obtained respectively in said plurality of directions, by the use of said conversion parameter.