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. 12, 1985
Filed:
Jul. 19, 1982
Richard S Schlunt, Loma Linda, CA (US);
Hans-Peter Schmid, Alta Loma, CA (US);
General Dynamics, Pomona Division, Pomona, CA (US);
Abstract
A technique for correlating two images, differing in size, but of identical spatial content. The technique is based on the Cauchy-Schwarz Inequality and is derived in such a way as to eliminate the requirement for division, thereby realizing practical real time implementation with presently available electronic hardware. In the embodiment disclosed, reference and data image signals require no pre-processing for the removal of mean and gain factors prior to being individually supplied to the correlator. The correlator is built around modules which can be configured serially with delay lines to adapt to virtually any image configuration. Simulation tests have shown the embodiment to be superior to prior art correlators utilizing other algorithms under conditions of noise, offset and gain differences.