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:
Jan. 16, 2018

Filed:

Aug. 07, 2017
Applicant:

Dolby Laboratories Licensing Corporation, San Francisco, CA (US);

Inventors:

Shijun Sun, Vancouver, WA (US);

Shawmin Lei, Camas, WA (US);

Hiroyuki Katata, Chiba, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 7/12 (2006.01); H04N 19/117 (2014.01); H04N 19/51 (2014.01); H04N 19/124 (2014.01); H04N 19/15 (2014.01); H04N 19/58 (2014.01); H04N 19/573 (2014.01); H04N 19/86 (2014.01); H04N 19/85 (2014.01); H04N 19/527 (2014.01); H04N 19/43 (2014.01); H04N 19/82 (2014.01); H04N 19/137 (2014.01); H04N 19/14 (2014.01); H04N 19/136 (2014.01); H04N 19/60 (2014.01); H04N 19/61 (2014.01); H04N 19/196 (2014.01); H04N 19/46 (2014.01); H04N 19/176 (2014.01); H04N 19/159 (2014.01); H04N 19/139 (2014.01); H04N 19/615 (2014.01); H04N 19/167 (2014.01); H04N 19/105 (2014.01); H04N 19/172 (2014.01);
U.S. Cl.
CPC ...
H04N 19/117 (2014.11); H04N 19/105 (2014.11); H04N 19/124 (2014.11); H04N 19/136 (2014.11); H04N 19/137 (2014.11); H04N 19/139 (2014.11); H04N 19/14 (2014.11); H04N 19/15 (2014.11); H04N 19/159 (2014.11); H04N 19/167 (2014.11); H04N 19/176 (2014.11); H04N 19/196 (2014.11); H04N 19/197 (2014.11); H04N 19/43 (2014.11); H04N 19/46 (2014.11); H04N 19/51 (2014.11); H04N 19/527 (2014.11); H04N 19/573 (2014.11); H04N 19/58 (2014.11); H04N 19/60 (2014.11); H04N 19/61 (2014.11); H04N 19/615 (2014.11); H04N 19/82 (2014.11); H04N 19/85 (2014.11); H04N 19/86 (2014.11); H04N 19/172 (2014.11);
Abstract

An image decoding apparatus that includes a motion compensation prediction circuit configured to conduct motion compensation prediction for each of blocks to be decoded by using the reconstructed image, an inverse transformation circuit configured to conduct inverse orthogonal transformation for the data of the blocks to be decoded, and a determination circuit configured to determine a filtering strength and whether or not to conduct filtering, with respect to each of the boundaries. In addition, the determining circuit is configured to determine filtering is conducted when at least one of the two adjacent blocks is intra-coded, and filtering is not conducted when both of the two adjacent blocks are not intra-coded, a non-zero transformation coefficient is not coded in both of the two adjacent blocks, the two adjacent blocks are predicted by the same reference frame, and an absolute value of a difference between motion vectors of the two adjacent blocks is smaller than a specified threshold value.


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