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:
Dec. 27, 1988
Filed:
Apr. 22, 1987
Applicant:
Inventors:
Koichi Morishita, Kawasaki, JP;
Shimbu Yamagata, Yokohama, JP;
Tetsuo Okabe, Kashiwa, JP;
Tetsuo Yokoyama, Tokyo, JP;
Kazuhiko Hamatani, Tokyo, JP;
Assignees:
Hitachi, Ltd, Tokyo, JP;
Hitachi Medical Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
36441313 ; 358111 ; 382 54 ;
Abstract
In an unsharp masking processing for sharpening images such as radiographic images, an emphasizing coefficient of an image and parameters for real-time change of picture quality are set interactively. The entire image is divided into a plurality of regional images and filtering optimized for each pixel image is effected using a standard deviation computed for each regional image and a density difference between pixel images.