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. 17, 1987
Filed:
Sep. 13, 1983
Masato Nakashima, Yokohama, JP;
Tetsuo Koezuka, Hachioji, JP;
Hiroyuki Tsukahara, Atsugi, JP;
Takefumi Inagaki, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A pattern recognition apparatus and method, the apparatus comprising a correlation calculating circuit for calculating first correlations between each part of a image pattern data and a reference pattern data, the first correlation being expressed as R(X), where X is a variable factor representing a region storing the part of the image pattern data, and also comprising a second correlation calculating circuit for recognizing the position of a pattern most identical to the reference pattern by emphasizing the maximum value of the first correlations by converting each of the first correlations R(X) into a second correlation expressed as [R(X)-R(X-.alpha.)]-[R(X+.alpha.)-R(X)], where .alpha. is a predetermined value determined in accordance with the size of the reference pattern data.