Patent ID: 7221490
Filing Date: 2007-05-22
Classification: G03H,Y10S

Abstract:
1. Holographic method with numerical reconstruction for obtaining an image of a three-dimensional object, said method employing a digitalised hologram of an object or of a portion of an object, and being characterised in that it comprises the following steps: A. starting from the digitalised hologram, extracting an phase image of said object of portion of object, the image corresponding to a matrix MD of distance values, said distance values corresponding to distances from the image plane or to the depths relevant to said object or object portion; B. selecting a subassembly SD of the distance value assembly present in matrix MD of the method step A, subassembly SD containing distance values d C. for each distance value d D. for each distance value d E. extracting, from each bidimensional matrix IMd F. starting from intensity values of said IFd resolution of bidimensional matrix IMd