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. 13, 2021

Filed:

Sep. 06, 2018
Applicant:

Kaonmedia Co., Ltd., Seongnam-si, KR;

Inventors:

Jeong Yun Lim, Seoul, KR;

Hoa Sub Lim, Seongnam-si, KR;

Dong Gyu Sim, Seoul, KR;

Sea Nae Park, Uijeongbu-si, KR;

Assignee:

KAONMEDIA CO., LTD., Seongnam-si, KR;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H04N 19/124 (2014.01); H04N 19/119 (2014.01); H04N 19/147 (2014.01); H04N 19/176 (2014.01); H04N 19/96 (2014.01);
U.S. Cl.
CPC ...
H04N 19/124 (2014.11); H04N 19/119 (2014.11); H04N 19/147 (2014.11); H04N 19/176 (2014.11); H04N 19/96 (2014.11);
Abstract

A method for image decoding includes: a step of parsing division depth information and division direction information of a block to be decoded; a step of acquiring division structure information, of a unit to be decoded in the block, corresponding to the parsed division depth information and division direction information; a step of acquiring, based on the division structure information, one or more prediction quantization parameters from at least one neighboring unit corresponding to the unit to be decoded; a step of acquiring a differential quantization parameter for the unit to be decoded; a step of acquiring a quantization parameter from the differential quantization parameter and the one or more prediction quantization parameters; and a step of performing decoding corresponding to the unit to be decoded, by using the acquired quantization parameter.


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