KR20180084664A - 영상 신호 부호화/복호화 방법 및 장치 - Google Patents

영상 신호 부호화/복호화 방법 및 장치 Download PDF

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KR20180084664A
KR20180084664A KR1020180005412A KR20180005412A KR20180084664A KR 20180084664 A KR20180084664 A KR 20180084664A KR 1020180005412 A KR1020180005412 A KR 1020180005412A KR 20180005412 A KR20180005412 A KR 20180005412A KR 20180084664 A KR20180084664 A KR 20180084664A
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prediction
block
decoding
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screen
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KR1020180005412A
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KR102670040B1 (ko
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문주희
원동재
임성원
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세종대학교산학협력단
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
    • H04N19/103—Selection of coding mode or of prediction mode
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
    • H04N19/117—Filters, e.g. for pre-processing or post-processing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
    • H04N19/124—Quantisation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
    • H04N19/13—Adaptive entropy coding, e.g. adaptive variable length coding [AVLC] or context adaptive binary arithmetic coding [CABAC]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/169—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
    • 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
    • H04N19/176—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 the region being a block, e.g. a macroblock
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/42—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation
    • H04N19/423—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation characterised by memory arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
    • H04N19/51—Motion estimation or motion compensation
    • H04N19/573—Motion compensation with multiple frame prediction using two or more reference frames in a given prediction direction

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)

Abstract

영상 부호화/복호화 방법 및 장치가 개시된다. 본 개시의 일 실시 예에 따른 영상 복호화 방법은, 현재 부호화 블록의 인트라 하이브리드 모드 정보를 부호화하는 단계 및 기 인트라 하이브리드 모드 정보에 기초하여 상기 현재 부호화 블록 내의 적어도 하나의 예측 블록의 예측 샘플을 생성하는 단계를 포함하고, 상 현재 부호화 블록이 인트라 하이브리드 모드인 경우, 상기 현재 부호화 블록 내의 적어도 하나의 예측 블록의 예측 샘플을 생성하는 단계는, 상기 현재 부호화 블록을 제1 예측 블록 및 제2 예측 블록으로 분할하는 단계, 상기 제1 예측 블록의 주변 블록으로부터 유도된 상기 제1 예측 블록의 화면 내 예측 모드를 이용하여 상기 제1 예측 블록의 예측 샘플을 생성하는 단계 및 상기 제2 예측 블록의 화면 내 예측 모드 정보 또는 DIMD 모드 정보에 기초하여 상기 제2 예측 블록의 화면 내 예측 모드를 결정하고, 상기 결정된 화면 내 예측 모드를 이용하여 상기 제2 예측 블록의 예측 샘플을 생성하는 단계를 포함할 수 있다.
KR1020180005412A 2017-01-16 2018-01-16 영상 신호 부호화/복호화 방법 및 장치 KR102670040B1 (ko)

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KR20170007351 2017-01-16
KR1020170007351 2017-01-16

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20220074232A (ko) * 2020-11-27 2022-06-03 한국전자기술연구원 다 시점 또는 다 계층 영상에서의 인트라 모드 예측 장치 및 그 방법
WO2022119301A1 (ko) * 2020-12-01 2022-06-09 현대자동차주식회사 인트라 예측을 이용하는 비디오 코딩 방법 및 장치
WO2023055167A1 (ko) * 2021-10-01 2023-04-06 엘지전자 주식회사 인트라 예측 모드 도출 기반 인트라 예측 방법 및 장치
WO2023128703A1 (ko) * 2021-12-30 2023-07-06 엘지전자 주식회사 인트라 예측 모드 도출 기반 인트라 예측 방법 및 장치

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1351510A1 (en) * 2001-09-14 2003-10-08 NTT DoCoMo, Inc. Coding method,decoding method,coding apparatus,decoding apparatus,image processing system,coding program,and decoding program
WO2016072775A1 (ko) * 2014-11-06 2016-05-12 삼성전자 주식회사 비디오 부호화 방법 및 장치, 비디오 복호화 방법 및 장치

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1351510A1 (en) * 2001-09-14 2003-10-08 NTT DoCoMo, Inc. Coding method,decoding method,coding apparatus,decoding apparatus,image processing system,coding program,and decoding program
WO2016072775A1 (ko) * 2014-11-06 2016-05-12 삼성전자 주식회사 비디오 부호화 방법 및 장치, 비디오 복호화 방법 및 장치

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20220074232A (ko) * 2020-11-27 2022-06-03 한국전자기술연구원 다 시점 또는 다 계층 영상에서의 인트라 모드 예측 장치 및 그 방법
WO2022119301A1 (ko) * 2020-12-01 2022-06-09 현대자동차주식회사 인트라 예측을 이용하는 비디오 코딩 방법 및 장치
WO2023055167A1 (ko) * 2021-10-01 2023-04-06 엘지전자 주식회사 인트라 예측 모드 도출 기반 인트라 예측 방법 및 장치
WO2023128703A1 (ko) * 2021-12-30 2023-07-06 엘지전자 주식회사 인트라 예측 모드 도출 기반 인트라 예측 방법 및 장치

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