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:
Jun. 19, 2012
Filed:
Mar. 05, 2009
Yuji Omori, Kawasaki, JP;
Yuji Omori, Kawasaki, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
This invention provides a technique of efficiently executing prediction error calculation processing while preventing any increase in the circuit scale. An encoding apparatus of this invention includes a determination unit determining the size of an encoding target pixel block, a plurality of predicted value calculation units, a first error calculation unit calculating, based on a predicted value from a predicted value calculation unit in a prediction mode using one reference pixel value, the prediction error in the determined pixel block size, a second error calculation unit calculating, based on a predicted value from a predicted value calculation unit in a prediction mode for calculating a predicted value based on a plurality of reference pixel values, the prediction error in the determined pixel block size, and a unit determining, based on the sum of the prediction errors from the first and second error calculation units, a prediction mode.