KR102079906B1 - 이미지들을 인코딩 및 디코딩하기 위한 방법, 인코딩 및 디코딩 디바이스, 및 대응하는 컴퓨터 프로그램들 - Google Patents
이미지들을 인코딩 및 디코딩하기 위한 방법, 인코딩 및 디코딩 디바이스, 및 대응하는 컴퓨터 프로그램들 Download PDFInfo
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Abstract
Description
도 1은 본 발명에 따른 인코딩 방법의 메인 단계들을 나타내고,
도 2는 본 발명에 따른 인코딩 디바이스의 실시예를 나타내고,
도 3은 본 발명에 따른 디코딩 방법의 메인 단계들을 나타내고,
도 4는 본 발명에 따른 디코딩 디바이스의 실시예를 나타낸다.
Claims (2)
- 이미지의 부호-데이터-은닉 인에이블된 분할(sign-data-hiding enabled partition)을 디코딩하는 방법에 있어서,
인코더로부터 콘텍스트 기반의 적응 이진 산술 코딩(context-based adaptive binary arithmetic coding, CABAC) 인코딩된 계수들의 세트를 수신하는 단계와;
상기 부호-데이터-은닉 인에이블된 분할의 잔여(residual) 블록을 나타내는 계수들의 세트를 생성하기 위해, 상기 CABAC 인코딩된 계수들의 세트를 디코딩하는 단계로서, 상기 계수들의 세트는, 부호 지정 없는 첫번째 비-제로(non-zero) 계수를 포함하는 것인, 상기 CABAC 인코딩된 계수들의 세트를 디코딩하는 단계와;
부호 데이터를 생성하기 위해 상기 계수들의 세트에 함수를 적용하는 단계로서, 상기 계수들의 세트에 함수를 적용하는 단계는,
상기 계수들의 세트 내의 수정가능한 계수들의 수(count)를 판단하는 단계와;
상기 수정가능한 계수들의 수가 임계치보다 큰 경우, 상기 계수들의 세트 내의 첫번째 비-제로 계수의 부호 정보가 은닉되어 있다고 판단하는 단계와;
상기 계수들의 세트 내의 비-제로 계수들의 절대값들의 합을 계산하는 단계와;
상기 합과 특정 수 간의 나누기(division)에 기초하여 나머지(remainder) 데이터를 계산하는 단계와;
부호 데이터에 기초하여 상기 첫번째 비-제로 계수에 대한 부호를 지정하는 단계
를 포함하는 것인, 상기 계수들의 세트에 함수를 적용하는 단계
를 포함하고,
상기 첫번째 비-제로 계수에 대한 부호를 지정하는 단계는,
상기 나머지 데이터에 기초하여 상기 첫번째 비-제로 계수에 대한 부호를 지정하는 단계와,
계수들의 역양자화된 블록을 생성하기 위해 상기 지정된 부호를 갖는 첫번째 비-제로 계수를 포함하는 상기 계수들의 세트를 역양자화하는 단계와,
잔여 블록을 생성하기 위해 상기 역양자화된 계수들의 블록을 역변환하는 단계
를 포함하는 것인, 이미지의 부호-데이터-은닉 인에이블된 분할을 디코딩하는 방법. - 제1항에 있어서, 상기 수정가능한 계수들은, 상기 잔여 블록의 역 스캔 순서에 따른 첫번째 비-제로 계수와, 상기 잔여 블록의 역 스캔 순서에 따른 마지막 비-제로 계수, 및 상기 첫번째 비-제로 계수와 상기 마지막 비-제로 계수 사이의 계수들을 포함하는 것인, 이미지의 부호-데이터-은닉 인에이블된 분할을 디코딩하는 방법.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1160109 | 2011-11-07 | ||
| FR1160109A FR2982447A1 (fr) | 2011-11-07 | 2011-11-07 | Procede de codage et decodage d'images, dispositif de codage et decodage et programmes d'ordinateur correspondants |
| PCT/FR2012/052552 WO2013068684A1 (fr) | 2011-11-07 | 2012-11-06 | Procédé de codage et décodage d'images, dispositif de codage et décodage et programmes d'ordinateur correspondants |
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| KR1020197000786A Division KR102008151B1 (ko) | 2011-11-07 | 2012-11-06 | 이미지들을 인코딩 및 디코딩하기 위한 방법, 인코딩 및 디코딩 디바이스, 및 대응하는 컴퓨터 프로그램들 |
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| KR1020207004323A Division KR102149540B1 (ko) | 2011-11-07 | 2012-11-06 | 이미지들을 인코딩 및 디코딩하기 위한 방법, 인코딩 및 디코딩 디바이스, 및 대응하는 컴퓨터 프로그램들 |
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| KR20190092627A KR20190092627A (ko) | 2019-08-07 |
| KR102079906B1 true KR102079906B1 (ko) | 2020-02-20 |
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| KR1020227017284A Active KR102609353B1 (ko) | 2011-11-07 | 2012-11-06 | 이미지들을 인코딩 및 디코딩하기 위한 방법, 인코딩 및 디코딩 디바이스, 및 대응하는 컴퓨터 프로그램들 |
| KR1020197000786A Active KR102008151B1 (ko) | 2011-11-07 | 2012-11-06 | 이미지들을 인코딩 및 디코딩하기 위한 방법, 인코딩 및 디코딩 디바이스, 및 대응하는 컴퓨터 프로그램들 |
| KR1020187014448A Active KR101940967B1 (ko) | 2011-11-07 | 2012-11-06 | 이미지들을 인코딩 및 디코딩하기 위한 방법, 인코딩 및 디코딩 디바이스, 및 대응하는 컴퓨터 프로그램들 |
| KR1020207004323A Active KR102149540B1 (ko) | 2011-11-07 | 2012-11-06 | 이미지들을 인코딩 및 디코딩하기 위한 방법, 인코딩 및 디코딩 디바이스, 및 대응하는 컴퓨터 프로그램들 |
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