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:
Jan. 13, 2009
Filed:
Jun. 21, 2005
Toshiroh Hiromitsu, Fujisawa, JP;
Yasuhiro Kitabatake, Fujisawa, JP;
Seiji Motai, Sagamihara, JP;
Yasushi Tsukamoto, Fujisawa, JP;
Toshiroh Hiromitsu, Fujisawa, JP;
Yasuhiro Kitabatake, Fujisawa, JP;
Seiji Motai, Sagamihara, JP;
Yasushi Tsukamoto, Fujisawa, JP;
International Business Machines Corporation, Armonk, NY (US);
Abstract
The present invention aims at improving an image compression rate and enhancing quality of images after expansion. An image compression device generates compressed data formed by compressing an image. The device includes a boundary area detection section for detecting boundary areas which include both of internal and external parts of an object rendered in the image, from among plural areas included in the image; a non-boundary area data generation section for, by compressing non-boundary areas which are not the boundary areas in the image, in a predetermined compression mode, generating partial compressed data in the compressed data, corresponding to the non-boundary areas; and a boundary area data generation section for generating partial compressed data in the compressed data, corresponding to the boundary areas, from the boundary areas, in a mode in which difference between images before compression and after expansion is less in comparison with a case where the boundary areas are compressed in the predetermined compression mode.