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. 30, 2004
Filed:
Dec. 08, 2000
Fumihiko Itagaki, Hokkaido, JP;
Miyuki Kawashima, Hokkaido, JP;
Hudson Soft Co., Ltd., Hokkaido, JP;
Abstract
The invention relates to an image encoding/decoding method, apparatus thereof and a recording medium in which a program therefor is recorded, whereby the encoding/decoding can be obtained with high image quality at high speed. In an image encoding method which comprises producing a DC image composed of each block mean value by dividing an image data per B pixel into a block, making a part of said DC image a DC nest, and where the differential vector <d > which is obtained by separating the DC value DC from the pixel block <R > to be encoded is over an allowable value Z, calculating one or more orthogonal basis (&agr; <V >), to which the differential vector is approximated, by the adaptive orthogonal transform (AOT) using the DC nest, each of the lowest n (n=log B) bits of base extraction blocks <U > which are down-sampled from the DC nest is set to 0. Further, base extraction vectors <u > are produced by separating a block mean value a from the base extraction blocks <U >.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile