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:
Sep. 10, 2024

Filed:

Sep. 14, 2023
Applicant:

Kabushiki Kaisha Toshiba, Tokyo, JP;

Inventors:

Akiyuki Tanizawa, Kanagawa, JP;

Takeshi Chujoh, Kanagawa, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 19/13 (2014.01); H04N 19/105 (2014.01); H04N 19/147 (2014.01); H04N 19/15 (2014.01); H04N 19/176 (2014.01); H04N 19/196 (2014.01); H04N 19/44 (2014.01); H04N 19/463 (2014.01); H04N 19/513 (2014.01); H04N 19/547 (2014.01); H04N 19/577 (2014.01); H04N 19/61 (2014.01); H04N 19/625 (2014.01); H04N 19/70 (2014.01); H04N 19/182 (2014.01); H04N 19/184 (2014.01); H04N 19/186 (2014.01);
U.S. Cl.
CPC ...
H04N 19/13 (2014.11); H04N 19/105 (2014.11); H04N 19/147 (2014.11); H04N 19/15 (2014.11); H04N 19/176 (2014.11); H04N 19/196 (2014.11); H04N 19/44 (2014.11); H04N 19/463 (2014.11); H04N 19/513 (2014.11); H04N 19/547 (2014.11); H04N 19/577 (2014.11); H04N 19/61 (2014.11); H04N 19/625 (2014.11); H04N 19/70 (2014.11); H04N 19/182 (2014.11); H04N 19/184 (2014.11); H04N 19/186 (2014.11);
Abstract

An encoding device includes a deriving unit and an encoding unit. The deriving unit is configured to derive a first reference value based on fixed point precision representing roughness of a weighting factor that is used for multiplying a reference image. The encoding unit is configured to encode a first difference value that is a difference value between the weighting factor and the first reference value and the fixed point precision. The weighting factor is included in a first range of predetermined bit precision having the first reference value at approximate center. The first difference value is in the predetermined range.


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