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:
Feb. 03, 1976
Filed:
Mar. 27, 1974
Applicant:
Inventors:
Masakazu Ejiri, Tokorozawa, JA;
Michihiro Mese, Kokubunji, JA;
Haruo Yoda, Hachioji, JA;
Sadahiro Ikeda, Hachioji, JA;
Assignee:
Hitachi, Ltd., , JA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06K / ;
U.S. Cl.
CPC ...
3401 / ; 178D / ; 3401 / ; 3401 / ;
Abstract
A pattern recognition system in which an image plane is divided into a large number of micro-regions, the image of the background has been stored in advance by a unit of the micro-region as invariable information independent of the brightness of the image plane, inputted images and the stored information are successively compared, and the proportion of occupation of the image plane by an object getting in the field of vision is detected.