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. 28, 2017
Filed:
Aug. 10, 2011
Shohei Matsuo, Yokosuka, JP;
Yukihiro Bandoh, Yokosuka, JP;
Seishi Takamura, Yokosuka, JP;
Hirohisa Jozawa, Yokosuka, JP;
Shohei Matsuo, Yokosuka, JP;
Yukihiro Bandoh, Yokosuka, JP;
Seishi Takamura, Yokosuka, JP;
Hirohisa Jozawa, Yokosuka, JP;
Nippon Telegraph And Telephone Corporation, Tokyo, JP;
Abstract
A reduction in residual energy of inter-frame prediction with motion compensation and improvement in encoding efficiency are achieved by using a region-dividing type adaptive interpolation filter that takes an edge property of a picture into consideration. An edge calculation unit calculates edge information from reference picture data designated by a motion vector. A region dividing unit divides an encoding target frame into a plurality of regions that are units to which interpolation filters are adaptively applied based on the edge information. A filter coefficient optimizing unit optimizes an interpolation filter for a fractional-accuracy pixel for each of the regions. A reference picture interpolating unit interpolates the fractional-accuracy pixel of a reference picture using the optimized interpolation filter, and a predictive encoding unit performs predictive encoding using motion compensation of fractional-accuracy.