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. 25, 2008
Filed:
Sep. 20, 2002
Yukio Kadowaki, Nara, JP;
Mitsutaka Iwasaki, Kanagawa, JP;
Yutaka Sato, Kanagawa, JP;
Kazuhiro Miyazaki, Kanagawa, JP;
Yukio Kadowaki, Nara, JP;
Mitsutaka Iwasaki, Kanagawa, JP;
Yutaka Sato, Kanagawa, JP;
Kazuhiro Miyazaki, Kanagawa, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
The present invention provides an image processing device, an image processing method, and an image reading method, by which encoded data can be easily generated from sub-sampled image data, without a complicated circuit or an increase in the data amount. A one-dimensional wavelet transform in a predetermined direction is omitted in stagewhere componentsandof input image data have been sub-sampled. When coefficient data generated through such a two-dimensional wavelet transform are to be encoded, sub-bands that are not contained in the coefficient data in comparison with the coefficient data of a componentshould be considered to have been truncated.