KR20180084663A - 영상 신호 부호화/복호화 방법 및 장치 - Google Patents

영상 신호 부호화/복호화 방법 및 장치 Download PDF

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KR20180084663A
KR20180084663A KR1020180005411A KR20180005411A KR20180084663A KR 20180084663 A KR20180084663 A KR 20180084663A KR 1020180005411 A KR1020180005411 A KR 1020180005411A KR 20180005411 A KR20180005411 A KR 20180005411A KR 20180084663 A KR20180084663 A KR 20180084663A
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South Korea
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prediction
block
prediction block
mode
decoding
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KR1020180005411A
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문주희
원동재
임성원
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세종대학교산학협력단
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Priority to KR1020240027234A priority Critical patent/KR20240031287A/ko

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    • H—ELECTRICITY
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    • 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
    • H04N19/513—Processing of motion vectors
    • H—ELECTRICITY
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    • 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
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    • 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
    • H04N19/105—Selection of the reference unit for prediction within a chosen coding or prediction mode, e.g. adaptive choice of position and number of pixels used for prediction
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
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    • H04N19/119—Adaptive subdivision aspects, e.g. subdivision of a picture into rectangular or non-rectangular coding blocks
    • H—ELECTRICITY
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    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
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    • H04N19/13—Adaptive entropy coding, e.g. adaptive variable length coding [AVLC] or context adaptive binary arithmetic coding [CABAC]
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    • H04N19/134—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
    • H04N19/136—Incoming video signal characteristics or properties
    • H04N19/137—Motion inside a coding unit, e.g. average field, frame or block difference
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
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    • 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

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  • Signal Processing (AREA)
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Abstract

영상 부호화/복호화 방법 및 장치가 개시된다. 본 개시의 일 실시 예에 따른 영상 복호화 방법은, 현재 부호화 블록의 인터 하이브리드 모드 정보를 복호화하는 단계 및 상기 인터 하이브리드 모드 정보에 기초하여 상기 현재 부호화 블록 내의 적어도 하나의 예측 블록의 예측 샘플을 생성하는 단계를 포함하고, 상기 현재 부호화 블록이 인터 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, Merge 모드를 이용하여 상기 제1 예측 블록의 움직임 정보를 유도하고, 상기 유도된 제1 예측 블록의 움직임 정보를 이용하여 상기 제1 예측 블록의 예측 샘플을 생성하는 단계 및 Merge 모드, AMVP 모드 및 DMID(Decoder-side Motion Information Derivation) 모드 중 어느 하나를 이용하여 상기 제2 예측 블록의 움직임 정보를 유도하고, 상기 유도된 제2 예측 블록의 움직임 정보를 이용하여 상기 제2 예측 블록의 예측 샘플을 생성하는 단계를 포함할 수 있다.
KR1020180005411A 2017-01-16 2018-01-16 영상 신호 부호화/복호화 방법 및 장치 KR20180084663A (ko)

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KR1020240027234A KR20240031287A (ko) 2017-01-16 2024-02-26 영상 신호 부호화/복호화 방법 및 장치

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KR1020240027234A KR20240031287A (ko) 2017-01-16 2024-02-26 영상 신호 부호화/복호화 방법 및 장치

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113261293A (zh) * 2018-11-13 2021-08-13 北京字节跳动网络技术有限公司 用于帧内块复制的基于历史的运动候选列表构建
CN113424535A (zh) * 2019-02-13 2021-09-21 北京字节跳动网络技术有限公司 基于运动矢量预测表的历史更新
CN113647108A (zh) * 2019-03-27 2021-11-12 北京字节跳动网络技术有限公司 基于历史的运动矢量预测

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113261293A (zh) * 2018-11-13 2021-08-13 北京字节跳动网络技术有限公司 用于帧内块复制的基于历史的运动候选列表构建
CN113261293B (zh) * 2018-11-13 2023-11-03 北京字节跳动网络技术有限公司 用于帧内块复制的基于历史的运动候选列表构建
CN113424535A (zh) * 2019-02-13 2021-09-21 北京字节跳动网络技术有限公司 基于运动矢量预测表的历史更新
CN113647108A (zh) * 2019-03-27 2021-11-12 北京字节跳动网络技术有限公司 基于历史的运动矢量预测
US11895320B2 (en) 2019-03-27 2024-02-06 Beijing Bytedance Network Technology Co., Ltd History-based motion vector prediction

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