Patent ID: 11895405
Assignee: UNIVERSITY COLLEGE CORK, NATIONAL UNIVERSITY OF IRELAND, CORK
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 11:
12. The method of claim 11, wherein the step of associating each selected pixel with a unique Walsh code time sequence comprises:
generating a N×N Walsh matrix, wherein the rows of the matrix are numbered from top to bottom sequentially from 1 to N and each row represents a unique N-bit Walsh code time sequence;
calculating the sequency parameter S for each column of the N×N Walsh matrix;
generating a sequency ordered modified Walsh matrix by reordering the columns of the Walsh matrix from left to right in increasing order of the calculated sequency parameter S; and
associating each selected pixel with the row of the sequency ordered modified Walsh matrix of the same number as the number assigned to the pixel.