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. 29, 2014
Filed:
Sep. 17, 2007
Xavier Henocq, Mouaze, FR;
Fabrice Le Leannec, Mouaze, FR;
Patrice Onno, Rennes, FR;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A method of coding a digital image which includes plural macroblocks of which one is designated as a 'current' macroblock. Motion estimation is applied to the current macroblock and to at least one image designated as 'reference', to obtain one or more first predictors in each reference image. A second predictor is obtained from a spatial scalability level lower than the spatial scalability level of the current macroblock. At least one of the first predictors is transformed from the spatial domain to the frequential domain. At least one low spatial frequency coefficient is predicted on the basis of the second predictor, and at least one high spatial frequency coefficient is predicted on the basis of at least one high frequency coefficient of the transformed first predictor.