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.:

US 6980693 B1

PDF
Full Text
Expired
Date of Patent:
Dec. 27, 2005

Filed:

Jan. 17, 2002
Applicant:

Hitoshi Horie, Ageo, JP;

Inventor:

Hitoshi Horie, Ageo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06K009/36 ;
U.S. Cl.
CPC ...
Abstract

An image coding method that compresses an image read through an optical system. An image separation section carries out image area decisions in tile (macro block) units to separate the image into photographic image tiles and character image tiles. A layer separation section performs layer separation pixel by pixel to separate each pixel into pixels belonging to a background and pixels belonging to a foreground. Approximation processors alleviate an increase of entropy, due to layer separation through approximation processing, and carry out JPEG-like processing on photographic images.


Find Patent Forward Citations

Horie, Hitoshi. (2005). Method and apparatus for image coding (U.S. Patent No. 6980693). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6980693

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