Patent ID: 11869207
Assignee: ARIZONA BOARD OF REGENTS ON BEHALF OF THE UNIVERSITY OF ARIZONA
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 14:
15. The computer program product according to claim 11, further comprising:
program code for reducing a level of phase noise in the first wrapped phase-image prior to said spatially extending the first wrapped phase-image, when the first wrapped phase-image includes the phase noise wrapped with a period having the modulus of 2π, by performing at least one of the following steps:
(15a) modifying phase values of pixels of the first wrapped phase-image by reducing noise corresponding to said pixels while, at the same time, preserving a gradient of phase distribution across the first wrapped phase-image;
(15b) removing speckle-like noise from those pixels of the first wrapped phase image that possess the speckle-like noise;
(15c) removing noise that is based on a gradient distribution of the phase in the first wrapped phase-image; and
(15d) determining positions of edges of phase-fringes in the first wrapped phase-image.