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:
Jun. 30, 2020

Filed:

Jun. 25, 2019
Applicant:

Google Llc, Mountain View, CA (US);

Inventors:

Jingning Han, Santa Clara, CA (US);

Ching-Han Chiang, San Jose, CA (US);

Assignee:

GOOGLE LLC, Mountain View, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 7/12 (2006.01); H04N 19/129 (2014.01); G06T 9/00 (2006.01); H04N 19/176 (2014.01); H04N 19/13 (2014.01); H04N 19/60 (2014.01); H04N 19/18 (2014.01); H04N 19/91 (2014.01); H04N 19/134 (2014.01); H04N 19/136 (2014.01); H04N 19/192 (2014.01);
U.S. Cl.
CPC ...
H04N 19/60 (2014.11); H04N 19/129 (2014.11); H04N 19/134 (2014.11); H04N 19/136 (2014.11); H04N 19/176 (2014.11); H04N 19/18 (2014.11); H04N 19/192 (2014.11); H04N 19/91 (2014.11);
Abstract

Video coding using a context adaptive scan order for entropy coding may include an apparatus decoding a current block by identifying a context adaptive scan order for entropy decoding a transform block, which may include identifying non-zero-coefficient probabilities for the transform block such that each location in the transform block corresponds to a respective non-zero-coefficient probability from the non-zero-coefficient probabilities, assigning a respective context adaptive scan order position to each location in the transform block in descending magnitude order of the respective corresponding non-zero-coefficient probabilities such that the context adaptive scan order position for each location exceeds the context adaptive scan order position assigned to entropy coding context locations for the respective location, entropy decoding transform coefficients from the encoded video stream based on the context adaptive scan order, and reconstructing the decoded block based on the transform block.


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