WO2020141813A3 - 영상 부호화/복호화 방법, 장치 및 비트스트림을 저장한 기록 매체 - Google Patents

영상 부호화/복호화 방법, 장치 및 비트스트림을 저장한 기록 매체 Download PDF

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WO2020141813A3
WO2020141813A3 PCT/KR2019/018597 KR2019018597W WO2020141813A3 WO 2020141813 A3 WO2020141813 A3 WO 2020141813A3 KR 2019018597 W KR2019018597 W KR 2019018597W WO 2020141813 A3 WO2020141813 A3 WO 2020141813A3
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decoding method
image encoding
recording medium
medium storing
block
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PCT/KR2019/018597
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French (fr)
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WO2020141813A2 (ko
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임성창
강정원
이하현
이진호
김휘용
이영렬
김명준
김남욱
김양우
정지연
김재곤
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한국전자통신연구원
세종대학교 산학협력단
한국항공대학교산학협력단
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Priority to US17/420,084 priority Critical patent/US20220086428A1/en
Priority to CN201980087328.2A priority patent/CN113273213B/zh
Publication of WO2020141813A2 publication Critical patent/WO2020141813A2/ko
Publication of WO2020141813A3 publication Critical patent/WO2020141813A3/ko

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    • H04N19/103—Selection of coding mode or of prediction mode
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    • H04N19/186—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being a colour or a chrominance component
    • H—ELECTRICITY
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    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
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    • H04N19/17—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object
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    • H04N19/184—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being bits, e.g. of the compressed video stream
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    • H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
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    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
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    • H04N19/91—Entropy coding, e.g. variable length coding [VLC] or arithmetic coding

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  • Compression Or Coding Systems Of Tv Signals (AREA)

Abstract

영상 부호화/복호화 방법 및 장치가 제공된다. 본 발명에 따른 영상 복호화 방법은, 현재 색차 블록의 화면 내 예측 모드를 복원하는 단계, 상기 화면 내 예측 모드가 CCLM(Cross-Component Linear Model) 모드인 경우, 상기 현재 색차 블록의 주변 샘플 및 상기 현재 색차 블록에 대응하는 대응 휘도 블록의 주변 샘플에 기초하여 적어도 하나의 대표값을 유도하는 단계, 상기 적어도 하나의 대표값을 이용하여 CCLM의 파라미터를 유도하는 단계 및 상기 CCLM의 파라미터를 이용하여 상기 현재 색차 블록의 예측 블록을 생성하는 단계를 포함할 수 있다.
PCT/KR2019/018597 2018-12-31 2019-12-27 영상 부호화/복호화 방법, 장치 및 비트스트림을 저장한 기록 매체 WO2020141813A2 (ko)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US17/420,084 US20220086428A1 (en) 2018-12-31 2019-12-27 Image encoding/decoding method and apparatus, and recording medium storing bitstream
CN201980087328.2A CN113273213B (zh) 2018-12-31 2019-12-27 图像编码/解码方法和设备以及存储比特流的记录介质

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Application Number Priority Date Filing Date Title
KR10-2018-0174190 2018-12-31
KR20180174190 2018-12-31
KR20190047373 2019-04-23
KR10-2019-0047373 2019-04-23

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WO2020141813A2 WO2020141813A2 (ko) 2020-07-09
WO2020141813A3 true WO2020141813A3 (ko) 2020-12-17

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Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3918800A4 (en) 2019-03-08 2022-07-06 Beijing Bytedance Network Technology Co., Ltd. SIGNALING TRANSFORMATION INFORMATION IN VIDEO PROCESSING
EP3935834A4 (en) 2019-04-18 2022-08-17 Beijing Bytedance Network Technology Co., Ltd. LIMITATION ON THE APPLICABILITY OF A CROSS COMPONENT MODE
MX2021012674A (es) 2019-04-23 2021-11-12 Beijing Bytedance Network Tech Co Ltd Metodos para la reduccion de dependencia de componentes cruzados.
JP7407206B2 (ja) 2019-05-08 2023-12-28 北京字節跳動網絡技術有限公司 クロスコンポーネントコーディングの適用条件
JP7418478B2 (ja) * 2019-06-22 2024-01-19 北京字節跳動網絡技術有限公司 クロマ残差スケーリングのためのシンタックス要素
CN117395396A (zh) 2019-07-07 2024-01-12 北京字节跳动网络技术有限公司 色度残差缩放的信令通知
KR20220036938A (ko) 2019-07-26 2022-03-23 베이징 바이트댄스 네트워크 테크놀로지 컴퍼니, 리미티드 블록 크기에 기초한 픽처 분할 모드의 결정
US20230379479A1 (en) * 2022-05-17 2023-11-23 Tencent America LLC Systems and methods for determining chroma samples in an intra prediction mode of video coding
WO2023244592A1 (en) * 2022-06-17 2023-12-21 Innopeak Technology, Inc. System and method for chromaticity intra prediction
WO2024022146A1 (en) * 2022-07-27 2024-02-01 Mediatek Inc. Using mulitple reference lines for prediction
WO2024088340A1 (en) * 2022-10-26 2024-05-02 Mediatek Inc. Method and apparatus of inheriting multiple cross-component models in video coding system
WO2024120307A1 (en) * 2022-12-07 2024-06-13 Mediatek Inc. Method and apparatus of candidates reordering of inherited cross-component models in video coding system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20140022959A (ko) * 2011-06-20 2014-02-25 가부시키가이샤 제이브이씨 켄우드 화상 부호화 장치, 화상 부호화 방법 및 화상 부호화 프로그램, 또한 화상 복호 장치, 화상 복호 방법 및 화상 복호 프로그램
KR20160023729A (ko) * 2013-06-21 2016-03-03 퀄컴 인코포레이티드 변위 벡터들을 이용한 예측 블록으로부터의 인트라 예측
US20170366818A1 (en) * 2015-01-22 2017-12-21 Mediatek Singapore Pte. Ltd. Method of Video Coding for Chroma Components
US20180146191A1 (en) * 2016-11-22 2018-05-24 Futurewei Technologies, Inc. System and Method for Coding Intra Prediction Mode using a Second Set of Most Probable Modes

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20230093063A (ko) * 2018-10-04 2023-06-26 엘지전자 주식회사 Cclm에 기반한 인트라 예측 방법 및 그 장치

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20140022959A (ko) * 2011-06-20 2014-02-25 가부시키가이샤 제이브이씨 켄우드 화상 부호화 장치, 화상 부호화 방법 및 화상 부호화 프로그램, 또한 화상 복호 장치, 화상 복호 방법 및 화상 복호 프로그램
KR20160023729A (ko) * 2013-06-21 2016-03-03 퀄컴 인코포레이티드 변위 벡터들을 이용한 예측 블록으로부터의 인트라 예측
US20170366818A1 (en) * 2015-01-22 2017-12-21 Mediatek Singapore Pte. Ltd. Method of Video Coding for Chroma Components
US20180146191A1 (en) * 2016-11-22 2018-05-24 Futurewei Technologies, Inc. System and Method for Coding Intra Prediction Mode using a Second Set of Most Probable Modes

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
CHOI (LGE) J; HEO J; YOO S; LI L; CHOI J; LIM J; KIM (LGE) S: "CE3-related : Reduced number of reference samples for CCLM parameter calculation", 12. JVET MEETING; 20181003 - 20181012; MACAO; (THE JOINT VIDEO EXPLORATION TEAM OF ISO/IEC JTC1/SC29/WG11 AND ITU-T SG.16 ), no. JVET-L0138, 1 October 2018 (2018-10-01), pages 1 - 5, XP030194151 *

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WO2020141813A2 (ko) 2020-07-09
KR20200083317A (ko) 2020-07-08
CN113273213A (zh) 2021-08-17

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