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. 23, 2019

Filed:

Jun. 19, 2018
Applicant:

Dolby International Ab, Amsterdam Zuidoost, NL;

Inventors:

Felix Henry, Saint Gregoire, FR;

Stephane Pateux, Rennes, FR;

Gordon Clare, Pace, FR;

Assignee:

Dolby International AB, Amsterdam Zuidoost, NL;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N 19/13 (2014.01); H04N 19/70 (2014.01); H04N 19/196 (2014.01); H04N 19/50 (2014.01); H04N 19/503 (2014.01); H04N 19/176 (2014.01); H04N 19/51 (2014.01); H04N 19/61 (2014.01); H04N 19/593 (2014.01); H04N 19/124 (2014.01); H04N 19/91 (2014.01); H04N 19/137 (2014.01); H04N 19/174 (2014.01); H04N 19/44 (2014.01); H04N 19/436 (2014.01); H04N 19/625 (2014.01); H04N 19/136 (2014.01); H04N 19/119 (2014.01);
U.S. Cl.
CPC ...
H04N 19/13 (2014.11); H04N 19/119 (2014.11); H04N 19/124 (2014.11); H04N 19/136 (2014.11); H04N 19/137 (2014.11); H04N 19/174 (2014.11); H04N 19/176 (2014.11); H04N 19/196 (2014.11); H04N 19/197 (2014.11); H04N 19/436 (2014.11); H04N 19/44 (2014.11); H04N 19/50 (2014.11); H04N 19/503 (2014.11); H04N 19/51 (2014.11); H04N 19/593 (2014.11); H04N 19/61 (2014.11); H04N 19/625 (2014.11); H04N 19/70 (2014.11); H04N 19/91 (2014.11);
Abstract

A method for coding includes; segmenting an image into blocks; grouping blocks into a number of subsets; coding, using an entropy coding module, each subset, by associating digital information with symbols of each block of a subset, including, for the first block of the image, initializing state variables of the coding module; and generating a data sub-stream representative of at least one of the coded subsets of blocks. Where a current block is the first block to be coded of a subset, symbol occurrence probabilities for the first current block are determined based on those for a coded and decoded predetermined block of at least one other subset. Where the current block is the last coded block of the subset: writing, in the sub-stream representative of the subset, the entire the digital information associated with the symbols during coding of the blocks of the subset, and implementing the initializing sub-step.


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