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. 27, 2004
Filed:
Oct. 29, 1999
James Philip Andrew, Waverton, AU;
Andrew Peter Bradley, Castlecrag, AU;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
The method encodes a digital image to provide a compressed coded representation of the image. The method firstly performs a multi-level 2-D DWT transform ( ) on the entire image, which is arranged in a hierarchical order ( ). The sub-bands of the transform are then tiled ( ) into a number of blocks. The method then embed-bitplane encodes ( ) each block to visually lossless point. Afterwards, each encoded block is terminated ( ) at a bitplane that minimizes image distortion based on determined distortion measures and a desired total of determined block rates. Finally, the method concatenates ( ) the said terminated encoded blocks to form the coded representation.