KR20190062349A - 변환 계수의 엔트로피 부호화/복호화 방법 및 장치 - Google Patents
변환 계수의 엔트로피 부호화/복호화 방법 및 장치 Download PDFInfo
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Abstract
Description
도 2는 본 발명의 일 실시예에 따른 영상 복호화 장치를 도시한다.
도 3은 본 발명의 일 실시예에 따른 계층적 부호화 단위를 도시한다.
도 4는 본 발명의 일 실시예에 따른 부호화 단위에 기초한 영상 부호화부를 도시한다.
도 5는 본 발명의 일 실시예에 따른 부호화 단위에 기초한 영상 복호화부를 도시한다.
도 6은 본 발명의 일 실시예에 따른 최대 부호화 단위, 서브 부호화 단위 및 예측 단위를 도시한다.
도 7은 본 발명의 일 실시예에 따른, 부호화 단위 및 변환 단위를 도시한다.
도 8a 및 8b는 본 발명의 일 실시예에 따른, 부호화 단위, 예측 단위 및 변환 단위의 분할 형태를 도시한다.
도 9는 본 발명의 일 실시예에 따른 변환 계수의 엔트로피 부호화 방법을 나타낸 플로우 차트이다.
도 10은 본 발명의 실시예들에 따른 변환 계수의 엔트로피 부호화 과정을 설명하기 위한 참조도이다.
도 11은 본 발명의 일 실시예에 따른 엔트로피 부호화 장치의 구체적인 구성을 나타낸 블록도이다.
도 12는 본 발명의 일 실시예에 따른 CABAB 부호화 장치의 블록도이다.
도 13은 본 발명의 일 실시예에 따른 마지막 유효 변환 계수의 위치의 부호화를 위한 컨텍스트 선택 과정을 설명하기 위한 참조도이다.
도 14는 도 10에 대응되는 시그니피컨스 맵을 나타낸다.
도 15는 도 10의 변환 블록에 구비된 유효 변환 계수들의 레벨값을 부호화하는 과정을 설명하기 위한 참조도이다.
도 16은 본 발명의 일 실시예에 따라서 이용되는 VLC 테이블의 일 예를 나타낸 것이다.
도 17은 본 발명의 또 다른 실시예에 따른 변환 계수의 엔트로피 부호화 방법을 설명하기 위한 참조도이다.
도 18a 및 도 18b는 본 발명의 또 다른 실시예에 따른 변환 계수의 엔트로피 부호화 방법을 설명하기 위한 참조도이다.
도 19는 본 발명의 일 실시예에 따른 변환 계수의 엔트로피 복호화 방법을 나타낸 플로우 차트이다.
도 20은 본 발명의 일 실시예에 따른 엔트로피 복호화 장치의 구체적인 구성을 나타낸 블록도이다.
Claims (5)
- 영상을 복수의 최대 부호화 단위들로 분할하는 단계;
상기 최대 부호화 단위들 중 하나의 최대 부호화 단위를 적어도 하나의 부호화 단위로 계층적으로 분할하는 단계;
상기 적어도 하나의 부호화 단위 중 하나의 부호화 단위로부터 분할된 변환 블록을 획득하는 단계;
상기 변환 블록 내의 변환 계수들 중 최종유효계수의 x좌표를 나타내는 x 인덱스 및 상기 최종유효계수의 y좌표를 나타내는 y 인덱스를 비트스트림으로부터 획득하는 단계;
상기 x 인덱스 및 상기 y 인덱스를 근거로 상기 최종유효계수의 스캔 인덱스를 결정하는 단계;
상기 최종유효계수의 레벨 정보를 획득하는 단계;
상기 최종유효계수의 레벨 정보를 이용하여 상기 최종유효계수를 복원하는 단계;
상기 최종유효계수의 스캔 인덱스를 근거로, 상기 변환 계수들 중 상기 최종유효계수를 제외한 유효계수의 상기 변환 블록 내 위치를 지시하는 유효계수플래그를 상기 비트스트림으로부터 획득하는 단계; 및
상기 유효계수의 상기 유효계수플래그를 이용하여 상기 유효계수를 복호화하는 단계를 포함하는 것을 특징으로 하는 비디오 복호화 방법.
- 제 1 항에 있어서,
상기 x 인덱스는, 상기 변환블록의 최좌상측 계수의 위치로부터 가로축 방향에 따라 x번째(x는 0 이상의 정수) 좌표를 나타내고,
상기 y 인덱스는, 상기 변환블록의 최좌상측 계수의 위치로부터 세로축 방향에 따라 y번째(y는 0 이상의 정수) 좌표를 나타내는 것을 특징으로 하는 비디오 복호화 방법.
- 제 1 항에 있어서, 상기 x 인덱스 및 y 인덱스를 획득하는 단계는,
상기 비트스트림에 대해 복호화를 수행하여 상기 x 인덱스를 획득하는 단계; 및
상기 비트스트림에 대해 복호화를 수행하여 상기 y 인덱스를 획득하는 단계를 포함하는 것을 특징으로 하는 비디오 복호화 방법.
- 제 1 항에 있어서, 상기 유효 계수는 상기 변환 블록의 상기 변환 계수들 중 레벨이 0이 아닌 계수이고,
상기 x 좌표 및 상기 y 좌표의 기준점은 상기 변환 블록의 좌측 상단 지점인 것을 특징으로 하는 비디오 복호화 방법.
- 변환 블록을 역변환하기 위한 프로세서를 포함하고,
상기 프로세서는, 영상을 복수의 최대 부호화 단위들로 분할하고, 상기 최대 부호화 단위들 중 하나의 최대 부호화 단위를 적어도 하나의 부호화 단위로 계층적으로 분할하고, 상기 적어도 하나의 부호화 단위 중 하나의 부호화 단위로부터 분할된 변환 블록을 획득하고,
상기 변환 블록 내의 변환 계수들 중 최종유효계수의 x좌표를 나타내는 x 인덱스 및 상기 최종유효계수의 y좌표를 나타내는 y 인덱스를 비트스트림으로부터 획득하고,
상기 x 인덱스 및 상기 y 인덱스를 근거로 상기 최종유효계수의 스캔 인덱스를 결정하고,
상기 최종유효계수의 레벨 정보를 획득하고,
상기 최종유효계수의 레벨 정보를 이용하여 상기 최종유효계수를 복원하고,
상기 최종유효계수의 스캔 인덱스를 근거로, 상기 변환 계수들 중 상기 최종유효계수를 제외한 유효계수의 상기 변환 블록 내 위치를 지시하는 유효계수플래그를 상기 비트스트림으로부터 획득하고, 상기 유효계수의 상기 유효계수플래그를 이용하여 상기 유효계수를 복호화하는 것을 특징으로 하는 비디오 복호화 장치.
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2021062019A1 (en) * | 2019-09-24 | 2021-04-01 | Beijing Dajia Internet Information Technology Co., Ltd. | Lossless coding modes for video coding |
Families Citing this family (41)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011259205A (ja) | 2010-06-09 | 2011-12-22 | Sony Corp | 画像復号化装置と画像符号化装置およびその方法とプログラム |
US10091529B2 (en) * | 2010-07-09 | 2018-10-02 | Samsung Electronics Co., Ltd. | Method and apparatus for entropy encoding/decoding a transform coefficient |
EP2592832B1 (en) * | 2010-07-09 | 2016-09-07 | Samsung Electronics Co., Ltd | Method and apparatus for entropy encoding/decoding a transform coefficient |
CA2819014C (en) | 2010-11-26 | 2016-12-13 | Nec Corporation | Video encoding device, video decoding device, video encoding method, video decoding method, and program |
US8976861B2 (en) * | 2010-12-03 | 2015-03-10 | Qualcomm Incorporated | Separately coding the position of a last significant coefficient of a video block in video coding |
US9042440B2 (en) | 2010-12-03 | 2015-05-26 | Qualcomm Incorporated | Coding the position of a last significant coefficient within a video block based on a scanning order for the block in video coding |
US20120163456A1 (en) | 2010-12-22 | 2012-06-28 | Qualcomm Incorporated | Using a most probable scanning order to efficiently code scanning order information for a video block in video coding |
US10992958B2 (en) | 2010-12-29 | 2021-04-27 | Qualcomm Incorporated | Video coding using mapped transforms and scanning modes |
US10397577B2 (en) | 2011-03-08 | 2019-08-27 | Velos Media, Llc | Inverse scan order for significance map coding of transform coefficients in video coding |
US9106913B2 (en) | 2011-03-08 | 2015-08-11 | Qualcomm Incorporated | Coding of transform coefficients for video coding |
ES2711671T3 (es) | 2011-06-28 | 2019-05-06 | Samsung Electronics Co Ltd | Procedimiento de decodificación de vídeo usando decodificación |
US9167253B2 (en) * | 2011-06-28 | 2015-10-20 | Qualcomm Incorporated | Derivation of the position in scan order of the last significant transform coefficient in video coding |
US9756360B2 (en) * | 2011-07-19 | 2017-09-05 | Qualcomm Incorporated | Coefficient scanning in video coding |
US9154792B2 (en) * | 2011-11-08 | 2015-10-06 | Qualcomm Incorporated | Progressive coding of position of last significant coefficient |
AU2012200319B2 (en) * | 2012-01-19 | 2015-11-26 | Canon Kabushiki Kaisha | Method, apparatus and system for encoding and decoding the significance map for residual coefficients of a transform unit |
MX346550B (es) * | 2012-01-20 | 2017-03-24 | Fraunhofer Ges Forschung | Codificación de coeficiente de transformada. |
EP3328086A1 (en) * | 2012-02-04 | 2018-05-30 | Google Technology Holdings LLC | Devices and methods for context reduction in last significant coefficient position coding |
KR20130116754A (ko) * | 2012-04-16 | 2013-10-24 | 주식회사 팬택 | 엔트로피 부복호화 방법 및 이러한 방법을 사용하는 장치 |
PH12018500781A1 (en) | 2012-07-02 | 2018-10-15 | Samsung Electronics Co Ltd | Method and apparatus for entropy coding video and method and apparatus for entropy decoding video |
WO2014110651A1 (en) * | 2013-01-16 | 2014-07-24 | Blackberry Limited | Transform coefficient coding for context-adaptive binary entropy coding of video |
CN104104958B (zh) * | 2013-04-08 | 2017-08-25 | 联发科技(新加坡)私人有限公司 | 图像解码方法及其图像解码装置 |
US9215464B2 (en) * | 2013-09-19 | 2015-12-15 | Blackberry Limited | Coding position data for the last non-zero transform coefficient in a coefficient group |
KR102250088B1 (ko) | 2013-10-24 | 2021-05-10 | 삼성전자주식회사 | 비디오 스트림을 복호화하는 방법 및 장치 |
WO2017043760A1 (ko) * | 2015-09-08 | 2017-03-16 | 삼성전자 주식회사 | 엔트로피 부호화 및 복호화를 위한 장치 및 방법 |
EP3306930A4 (en) * | 2015-09-10 | 2018-05-02 | Samsung Electronics Co., Ltd. | Encoding device, decoding device, and encoding and decoding method thereof |
WO2017041271A1 (en) * | 2015-09-10 | 2017-03-16 | Mediatek Singapore Pte. Ltd. | Efficient context modeling for coding a block of data |
EP3270594A1 (en) * | 2016-07-15 | 2018-01-17 | Thomson Licensing | Method and apparatus for advanced cabac context adaptation for last coefficient coding |
WO2018030294A1 (ja) * | 2016-08-10 | 2018-02-15 | パナソニック インテレクチュアル プロパティ コーポレーション オブ アメリカ | 符号化装置、復号装置、符号化方法及び復号方法 |
US10244261B2 (en) * | 2017-01-26 | 2019-03-26 | Google Llc | Transform coefficient coding using level maps |
CA3222632A1 (en) | 2017-04-13 | 2018-10-18 | Lg Electronics Inc. | Method and device for entropy encoding and decoding video signal |
CN108881909A (zh) * | 2017-05-09 | 2018-11-23 | 富士通株式会社 | 扫描顺序生成方法和扫描顺序生成设备 |
WO2019078693A1 (ko) * | 2017-10-20 | 2019-04-25 | 에스케이텔레콤 주식회사 | 영상 부호화 또는 복호화하기 위한 장치 및 방법 |
CN109874012B (zh) * | 2017-12-04 | 2020-09-11 | 北京金山云网络技术有限公司 | 一种视频编码方法、编码器、电子设备及介质 |
WO2019117402A1 (ko) * | 2017-12-13 | 2019-06-20 | 삼성전자 주식회사 | 비디오 복호화 방법 및 그 장치 및 비디오 부호화 방법 및 그 장치 |
CN113316934B (zh) * | 2019-01-25 | 2024-03-08 | 寰发股份有限公司 | 带有变换块级别约束的变换系数编码的方法和设备 |
ES3014018T3 (en) * | 2019-03-12 | 2025-04-16 | Lg Electronics Inc | Transform-based image coding |
CN119299710A (zh) * | 2019-06-10 | 2025-01-10 | 株式会社 Xris | 用于对图像信号进行编码/解码方法及其装置 |
CN114009023B (zh) | 2019-06-19 | 2023-09-15 | Lg电子株式会社 | 基于变换的图像编码方法及其装置 |
CN110708552B (zh) * | 2019-08-27 | 2021-12-31 | 杭州海康威视数字技术股份有限公司 | 解码方法、编码方法及装置 |
CN113489980B (zh) * | 2021-08-13 | 2022-10-25 | 北京大学深圳研究生院 | 一种点云属性变换系数的熵编码和熵解码的方法及设备 |
WO2024222411A1 (en) * | 2023-04-28 | 2024-10-31 | Mediatek Inc. | Entropy coding transform blocks |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20040114683A1 (en) * | 2002-05-02 | 2004-06-17 | Heiko Schwarz | Method and arrangement for coding transform coefficients in picture and/or video coders and decoders and a corresponding computer program and a corresponding computer-readable storage medium |
WO2010018138A1 (en) * | 2008-08-15 | 2010-02-18 | Thomson Licensing | Video coding with coding of the locations of significant coefficients in a block of coefficients |
Family Cites Families (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH11331612A (ja) | 1998-05-19 | 1999-11-30 | Canon Inc | 画像処理装置及び方法及び記憶媒体 |
JP2003153228A (ja) * | 2001-11-15 | 2003-05-23 | Sony Corp | 画像符号化装置及び画像復号化装置 |
US7379608B2 (en) * | 2003-12-04 | 2008-05-27 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung, E.V. | Arithmetic coding for transforming video and picture data units |
JP2007043651A (ja) | 2005-07-05 | 2007-02-15 | Ntt Docomo Inc | 動画像符号化装置、動画像符号化方法、動画像符号化プログラム、動画像復号装置、動画像復号方法及び動画像復号プログラム |
US20080130989A1 (en) | 2005-07-22 | 2008-06-05 | Mitsubishi Electric Corporation | Image encoder and image decoder, image encoding method and image decoding method, image encoding program and image decoding program, and computer readable recording medium recorded with image encoding program and computer readable recording medium recorded with image decoding program |
US8599925B2 (en) | 2005-08-12 | 2013-12-03 | Microsoft Corporation | Efficient coding and decoding of transform blocks |
KR100772870B1 (ko) * | 2005-12-12 | 2007-11-02 | 삼성전자주식회사 | Fgs 계층의 블록에 포함되는 계수의 특성에 따라 비디오신호를 부호화하고 복호화하는 방법 및 장치 |
JP4379444B2 (ja) | 2006-07-26 | 2009-12-09 | ソニー株式会社 | 復号化方法、復号化方法のプログラム、復号化方法のプログラムを記録した記録媒体、復号化装置 |
CN101321060B (zh) * | 2007-06-07 | 2011-06-08 | 管海明 | 一种用于编码和译码数字消息的方法和系统 |
JP5261376B2 (ja) * | 2007-09-21 | 2013-08-14 | パナソニック株式会社 | 画像符号化装置および画像復号化装置 |
KR20090097013A (ko) * | 2008-03-10 | 2009-09-15 | 삼성전자주식회사 | 영상 부호화장치 및 영상 복호화장치 |
KR101375668B1 (ko) | 2008-03-17 | 2014-03-18 | 삼성전자주식회사 | 변환 계수의 부호화, 복호화 방법 및 장치 |
KR20090129926A (ko) | 2008-06-13 | 2009-12-17 | 삼성전자주식회사 | 영상 부호화 방법 및 그 장치, 영상 복호화 방법 및 그 장치 |
US8406307B2 (en) * | 2008-08-22 | 2013-03-26 | Microsoft Corporation | Entropy coding/decoding of hierarchically organized data |
US7804428B2 (en) * | 2008-11-10 | 2010-09-28 | Apple Inc. | System and method for compressing a stream of integer-valued data |
KR101457894B1 (ko) * | 2009-10-28 | 2014-11-05 | 삼성전자주식회사 | 영상 부호화 방법 및 장치, 복호화 방법 및 장치 |
EP2592832B1 (en) * | 2010-07-09 | 2016-09-07 | Samsung Electronics Co., Ltd | Method and apparatus for entropy encoding/decoding a transform coefficient |
US8976861B2 (en) * | 2010-12-03 | 2015-03-10 | Qualcomm Incorporated | Separately coding the position of a last significant coefficient of a video block in video coding |
US9042440B2 (en) * | 2010-12-03 | 2015-05-26 | Qualcomm Incorporated | Coding the position of a last significant coefficient within a video block based on a scanning order for the block in video coding |
CN103597838B (zh) | 2011-04-15 | 2017-03-29 | 黑莓有限公司 | 对末位有效系数的位置进行编码和解码的方法和设备 |
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Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20040114683A1 (en) * | 2002-05-02 | 2004-06-17 | Heiko Schwarz | Method and arrangement for coding transform coefficients in picture and/or video coders and decoders and a corresponding computer program and a corresponding computer-readable storage medium |
WO2010018138A1 (en) * | 2008-08-15 | 2010-02-18 | Thomson Licensing | Video coding with coding of the locations of significant coefficients in a block of coefficients |
Non-Patent Citations (2)
Title |
---|
J. Sole, et al. Parallel Context Processing for the significance map in high coding efficiency. JCT-VC of ITU-T and ISO/IEC. JCTVC-D262 Ver.2, Jan. 21, 2011, pp.1-4 * |
Test Model under Consideration. JCT-VC of ITU-T and ISO/IEC. JCTVC-A205 draft003. Jun. 16, 2010, pp.1-119* * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2021062019A1 (en) * | 2019-09-24 | 2021-04-01 | Beijing Dajia Internet Information Technology Co., Ltd. | Lossless coding modes for video coding |
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