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. 03, 1981
Filed:
Nov. 28, 1979
Haruo Yoda, Kodaira, JP;
Jun Motoike, Hachiouji, JP;
Hitachi, Ltd., , JP;
Abstract
An image data processor for recognizing the degree of variation in the object in the image by dividing an image plane into a plurality of block regions and by sequentially comparing an input image and a background image for each of the divided block regions. The data to be used for comparing the input image and the background image are either the number of occurences of preset amplitude relationships of the signals which are produced by extracting the signals of plural pairs of picture elements in spacially preset relative position relationships from the output signals of an image pickup device while sequentially shifting the positions of the picture elements and by accomplishing the counting operations for each pair of the picture elements when the picture element extracted is included in a preset block region or the data which are produced by linearly transforming the data of the number of occurences.