Patent ID: 7486816
Filing Date: 2009-02-03
Classification: G01B,G06T

Abstract:
1. A three-dimensional measurement apparatus for obtaining information related to three-dimensional position of an object based on detection of a position of a bright portion, which is formed substantially linearly by irradiating slit light or pseudo slit light created by scanning spot light onto the object, in an image of the object captured by image capturing means, said three-dimensional measurement apparatus comprising: means for counting a number of brightened pixels belonging to the bright portion along each of a plurality of detection lines traversing the bright portion in the captured image; means for determining an allowable range of the number of brightened pixels along one detection line based on the number of brightened pixels respectively counted along the plurality of detection lines; and means for adopting data of the brightened pixels along each detection line where the number of brightened pixels is within the allowable range as proper data for obtaining the information related to three-dimensional position of the object.