Three-dimensional measurement system

A three-dimensional measurement system to measure three-dimensional shape of a measuring object comprising:

• a measurement unit that images the measuring object having a light projecting device that projects a near-infrared projection light onto the measuring object and a light receiving device that receives reflected near-infrared light, which is the light reflected by the projected light,
• a mesh structured holding table that forms a mounting surface on which the measuring object is placed and through which the projected light can pass,
• a specular member that reflects light passing through the mesh structured holding table in a direction that does not return to the mesh structured holding table,
• a data acquisition means for acquiring imaging data imaged using the measurement unit, and
• a coordinate calculation means for calculating three dimensional coordinates for a portion of the imaging data whose brightness is higher than a lower limit brightness and does not calculate the three dimensional coordinates for a portion whose brightness is lower than the lower limit brightness,
• wherein the mesh structured holding table is painted matte black.