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 16:
17. A computer implemented method for determining topology of an object imaged with the use of an optical imaging system, the method comprising:
generating, with the computer, a two-dimensional array of images each of which corresponds to a wrapped phase-image of an optical wavefront received at an optical detector from the object through the optical imaging system,
wherein the two-dimensional array of images has an odd number of columns and the odd number of rows,
wherein each of images of the two-dimensional array of images in said columns and rows is symmetric to an immediately-adjacent image of the two-dimensional array of images about a boundary shared by such images of the two-dimensional array of images;

transforming, with the computer, with the use of at least one of forward and inverse Laplacian operators the first wrapped phase-image to modify the two-dimensional array of images in Fourier space to define a phase corrector; and
generating, with the computer, an image of an unwrapped distribution of a phase of the optical wavefront, by adding the phase corrector to the wrapped phase-image on a pixel-by-pixel basis, wherein there is a one-to-one correspondence between pixels of the phase corrector and pixels of the first wrapped phase-image.