Patent ID: 7490019
Filing Date: 2009-02-10
Classification: G01B

Abstract:
1. A three-dimensional measurement apparatus for conducting measurement of a three-dimensional shape of a surface of an object, the apparatus comprising: a three-dimensional measuring device configured with a light-projection portion and a light-receiving portion, whereby the three-dimensional measuring device is operable to function in various angular positions while measuring the object, that conducts measurement of the three-dimensional shape of the surface of the object to obtain measurement data; a posture sensor that detects a posture, as an angular position of the three-dimensional measuring device with respect to a horizontal plane or plumb line for the object being measured; a parameter table in which parameters corresponding to a plurality of postures of the three-dimensional measuring device are stored, wherein each parameter changes when a positional relationship between the light-projection portion and the light-receiving portion becomes out of balance due to a change in posture of the three-dimensional measuring device; a selection portion that selects and reads out from the parameter table a parameter corresponding to the posture of the three-dimensional measuring device upon the measurement; and an operation portion that calculates three-dimensional shape data of the object using the measurement data and the parameter read out from the parameter table.