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:
Apr. 01, 2003
Filed:
Oct. 29, 1999
James Philip Andrew, Waverton, AU;
Dominic Yip, Lindfield, AU;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
The method decodes an compressed representation of a digital image. The compressed representation is in the form of a bitstream comprising in sequence encoded bitplanes each having first portions representative of the significances of first sub-regions in the current bitplane and second portions representative of respective bits of each coefficient in second sub-regions of the current bitplane. The method decodes each bitplane of a block of transform coefficients from a maximum bitplane to a minimum bitplane in the following manner. The method decodes the first portion as the respective significances of the first sub-regions in the current bitplane and decodes the second portion as the respective bits of each coefficient in the second sub-regions of said current bitplane.