APPARATUS AND METHOD FOR DETERMINING THE THREE-DIMENSIONAL SHAPE OF AN OBJECT

摘要

The invention relates to an apparatus for determining a three-dimensional shape of an object from a two-dimensional image, comprising a light source for illuminating the object, and a detector for forming an image of the illuminated object, wherein the light source emits a pattern of substantially needle-like light beams that are directed at the object, and wherein the detector forms an image of spots of light of the object thus illuminated by the light beams, and a processor is connected to the detector for reconstructing the shape of the object from the image of spots of light detected by the detector. The detector and the light source have a fixed position in relation to one another, the object is located between predetermined boundaries, and a mask is placed between the light source and the object for the formation of light rays, the mask being provided with an aperture pattern that is placed such that when the object is moved between the predetermined boundaries, the individual spots of the light spot image observed by the detector move along non-intersecting line sections.