The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 30, 2004
Filed:
Nov. 27, 2000
Sidney W. Marshall, Penfield, NY (US);
Xerox Corporation, Stamford, CT (US);
Abstract
A method for implementing sliding-window image processing for associative operators such as MIN, MAX, AND, and OR is disclosed. For one dimension, the present method divides the image into blocks according to the sliding window size and for each block calculates two sets of partial results, one working from the left boundary of the block and the other working from the right boundary of the block. The partial results from two adjacent blocks can then be combined in one operation to give a final value for any window straddling two adjacent blocks. The total number of operations is proportional to 3M; where M is the scan length as compared to (n−1)M using prior art; where n is the length of the sliding window. The present invention can be extended to two-dimensional arrays and can be extended to support arbitrary window sizes.