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.

Date of Patent:
Jul. 09, 2024

Filed:

Mar. 29, 2023
Applicant:

Nippon Hoso Kyokai, Tokyo, JP;

Inventors:

Shunsuke Iwamura, Tokyo, JP;

Atsuro Ichigaya, Tokyo, JP;

Shimpei Nemoto, Tokyo, JP;

Assignee:

NIPPON HOSO KYOKAI, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 19/137 (2014.01); H04N 19/129 (2014.01); H04N 19/157 (2014.01); H04N 19/176 (2014.01); H04N 19/573 (2014.01);
U.S. Cl.
CPC ...
H04N 19/573 (2014.11); H04N 19/129 (2014.11); H04N 19/137 (2014.11); H04N 19/157 (2014.11); H04N 19/176 (2014.11);
Abstract

An image encoding device encodes a block-based target image. The image encoding device comprises, in a transform skip mode in which orthogonal transform processing of the target image is skipped, a motion compensation predictor configured to generate a prediction image corresponding to the target image by performing motion compensation prediction using a plurality of reference images, an evaluator configured to evaluate a degree of similarity between the plurality of reference images on a pixel-by-pixel basis, a subtractor configured to calculate prediction residuals each indicating a difference between the target image and the prediction image on a pixel-by-pixel basis, a rearranger configured to rearrange the prediction residuals based on a result of evaluation by the evaluator and an encoder configured to encode the prediction residuals rearranged by the rearranger.


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