| 摘要 |
<p>A three-dimensional measurement apparatus is provided with a plurality of cameras, a feature acquiring means which acquires from each of captured images a normal direction which is the physical feature of the surface of an object to be measured, a corresponding pixel searching means which searches pixels corresponding between the images by means of the physical feature, and a measuring means which three-dimensionally measures the object on the basis of a disparity between the corresponding pixels. It is preferred to have a coordinate transformation means which transforms the normal direction of each image to a common coordinate system. A parameter for the coordinate transformation can be calculated from a parameter obtained in camera calibration. The three-dimensional measurement apparatus is capable of precisely measuring the three-dimensional shape of a mirror surface object without being influenced by the differences of the positions and characteristics of the cameras.</p> |
