WO2018097692A3 - Method and apparatus for encoding/decoding image, and recording medium in which bit stream is stored - Google Patents

Method and apparatus for encoding/decoding image, and recording medium in which bit stream is stored Download PDF

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Publication number
WO2018097692A3
WO2018097692A3 PCT/KR2017/013672 KR2017013672W WO2018097692A3 WO 2018097692 A3 WO2018097692 A3 WO 2018097692A3 KR 2017013672 W KR2017013672 W KR 2017013672W WO 2018097692 A3 WO2018097692 A3 WO 2018097692A3
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WO
WIPO (PCT)
Prior art keywords
block
encoding
prediction block
stored
recording medium
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PCT/KR2017/013672
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French (fr)
Korean (ko)
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WO2018097692A2 (en
Inventor
조승현
임성창
강정원
고현석
이진호
이하현
전동산
김휘용
최진수
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한국전자통신연구원
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Priority to CN202311025877.1A priority Critical patent/CN116866594A/en
Priority to CN201780073517.5A priority patent/CN110024394B/en
Priority to CN202311020975.6A priority patent/CN116886928A/en
Priority to CN202311023493.6A priority patent/CN116886930A/en
Priority to CN202311021525.9A priority patent/CN116886929A/en
Priority to CN202311024704.8A priority patent/CN116866593A/en
Publication of WO2018097692A2 publication Critical patent/WO2018097692A2/en
Publication of WO2018097692A3 publication Critical patent/WO2018097692A3/en

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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
    • H04N19/134—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
    • H04N19/14—Coding unit complexity, e.g. amount of activity or edge presence estimation
    • 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
    • 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
    • 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
    • H04N19/109—Selection of coding mode or of prediction mode among a plurality of temporal predictive coding modes
    • 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
    • H04N19/119—Adaptive subdivision aspects, e.g. subdivision of a picture into rectangular or non-rectangular coding blocks
    • 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
    • H04N19/50—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
    • 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
    • H04N19/513—Processing of motion vectors
    • 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
    • H04N19/593—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving spatial prediction techniques
    • 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
    • H04N19/80—Details of filtering operations specially adapted for video compression, e.g. for pixel interpolation
    • H04N19/82—Details of filtering operations specially adapted for video compression, e.g. for pixel interpolation involving filtering within a prediction loop
    • 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
    • H04N19/85—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression
    • H04N19/86—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression involving reduction of coding artifacts, e.g. of blockiness
    • 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
    • H04N19/90—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using coding techniques not provided for in groups H04N19/10-H04N19/85, e.g. fractals
    • H04N19/91—Entropy coding, e.g. variable length coding [VLC] or arithmetic coding
    • 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
    • H04N19/90—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using coding techniques not provided for in groups H04N19/10-H04N19/85, e.g. fractals
    • H04N19/96—Tree coding, e.g. quad-tree coding

Abstract

The present invention relates to a method for encoding and decoding an image. The method for decoding an image may comprise the steps of: generating a first prediction block of the current block by means of movement data thereof; determining at least one movement data of the current low-level block that can be utilized to generate a second prediction block from among movement data of neighboring low-level blocks; generating at least one second prediction block of the current low-level block by means of the determined at least one movement data; and generating the final prediction block on the basis of weighted sum of the first prediction block of the current block and at least one second prediction block of the current low-level block.
PCT/KR2017/013672 2016-11-28 2017-11-28 Method and apparatus for encoding/decoding image, and recording medium in which bit stream is stored WO2018097692A2 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
CN202311025877.1A CN116866594A (en) 2016-11-28 2017-11-28 Method and apparatus for encoding/decoding image and recording medium storing bit stream
CN201780073517.5A CN110024394B (en) 2016-11-28 2017-11-28 Method and apparatus for encoding/decoding image and recording medium storing bit stream
CN202311020975.6A CN116886928A (en) 2016-11-28 2017-11-28 Method and apparatus for encoding/decoding image and recording medium storing bit stream
CN202311023493.6A CN116886930A (en) 2016-11-28 2017-11-28 Method and apparatus for encoding/decoding image and recording medium storing bit stream
CN202311021525.9A CN116886929A (en) 2016-11-28 2017-11-28 Method and apparatus for encoding/decoding image and recording medium storing bit stream
CN202311024704.8A CN116866593A (en) 2016-11-28 2017-11-28 Method and apparatus for encoding/decoding image and recording medium storing bit stream

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR20160159507 2016-11-28
KR10-2016-0159507 2016-11-28

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WO2018097692A3 true WO2018097692A3 (en) 2018-07-26

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CN (6) CN116886928A (en)
WO (1) WO2018097692A2 (en)

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WO2020094150A1 (en) 2018-11-10 2020-05-14 Beijing Bytedance Network Technology Co., Ltd. Rounding in current picture referencing
BR112021011807A2 (en) * 2018-12-21 2021-09-28 Samsung Electronics Co., Ltd. IMAGE DECODING METHOD PERFORMED BY AN IMAGE DECODING APPARATUS, COMPUTER READable MEDIUM, IMAGE DECODING APPARATUS, AND IMAGE ENCODING METHOD PERFORMED BY AN IMAGE ENCODING APPARATUS
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US11394993B2 (en) * 2019-03-13 2022-07-19 Tencent America LLC Method and apparatus for affine inter prediction with small subblocks
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Also Published As

Publication number Publication date
CN116866594A (en) 2023-10-10
CN116886930A (en) 2023-10-13
CN116886928A (en) 2023-10-13
KR20180061041A (en) 2018-06-07
KR20230042673A (en) 2023-03-29
CN116886929A (en) 2023-10-13
KR102328179B1 (en) 2021-11-18
CN116866593A (en) 2023-10-10
CN110024394B (en) 2023-09-01
KR20210137982A (en) 2021-11-18
WO2018097692A2 (en) 2018-05-31
CN110024394A (en) 2019-07-16

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