Patent ID: 6546356
Filing Date: 2003-04-08
Classification: A43D,A61B,G01B,G01C,G06T

Abstract:
A method of imaging an object, the method comprising the steps of,disposing the object in front of a surface having patterned areas and a reference area, the object providing an object image, the object being disposed in front of the patterned areas for obstructing patterned images of the pattern areas positioned relative to the reference area providing an unobstructed reference image, focusing a camera upon the object, upon the patterned areas, and upon the reference areas from differing perspectives at respective perspective positions for capturing respective composite images each comprising the object image, the patterned images and the reference image, generating a data stream of the composite image comprising X rows and Y columns of an array of pixels, the data stream providing a series of transitions indicating regularity of the patterned images, a duration between each of the transitions indicating a number of pixels along one of the X rows and Y columns of the array of pixels, area determining along one of the rows or columns of the array of pixels the number of pixels between each of the transitions for determining an interruption in regularity of number of pixels between each of the transitions for indicating where the object obstructs the patterned areas at an obstructed pattern area of one of the patterned areas for indirectly indicating the 2D edge point of the object, and 2D determining a distance between the reference area and obstructed patterned area for determining the 2D edge point of the object relative to the reference area.