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WO2018117686A3 - Method and device for encoding or decoding video signal - Google Patents

Method and device for encoding or decoding video signal Download PDF

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Publication number
WO2018117686A3
WO2018117686A3 PCT/KR2017/015236 KR2017015236W WO2018117686A3 WO 2018117686 A3 WO2018117686 A3 WO 2018117686A3 KR 2017015236 W KR2017015236 W KR 2017015236W WO 2018117686 A3 WO2018117686 A3 WO 2018117686A3
Authority
WO
WIPO (PCT)
Prior art keywords
reference sample
sample area
intra prediction
current block
video signal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/KR2017/015236
Other languages
French (fr)
Korean (ko)
Other versions
WO2018117686A2 (en
Inventor
한종기
이재영
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Industry Academy Cooperation Foundation of Sejong University
Original Assignee
Industry Academy Cooperation Foundation of Sejong University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from KR1020170010076A external-priority patent/KR102835516B1/en
Priority claimed from KR1020170010077A external-priority patent/KR20180086094A/en
Priority claimed from KR1020170155365A external-priority patent/KR102435502B1/en
Application filed by Industry Academy Cooperation Foundation of Sejong University filed Critical Industry Academy Cooperation Foundation of Sejong University
Publication of WO2018117686A2 publication Critical patent/WO2018117686A2/en
Publication of WO2018117686A3 publication Critical patent/WO2018117686A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • H04N19/11—Selection of coding mode or of prediction mode among a plurality of spatial 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
    • H04N19/129—Scanning of coding units, e.g. zig-zag scan of transform coefficients or flexible macroblock ordering [FMO]
    • 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
    • H04N19/172—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 picture, frame or field
    • 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
    • H04N19/174—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 slice, e.g. a line of blocks or a group of 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
    • H04N19/169—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
    • H04N19/44—Decoders specially adapted therefor, e.g. video decoders which are asymmetric with respect to the encoder
    • 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
    • H04N19/59—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving spatial sub-sampling or interpolation, e.g. alteration of picture size or resolution

Landscapes

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

Abstract

The present invention relates to a video signal decoding method and a device therefor. A decoding method according to an embodiment of the present invention comprises the steps of: determining whether a sample within a reference sample area located in the vicinity of a current block is available for intra prediction of the current block, so as to divide the reference sample area into an available reference sample area and an unavailable reference sample area; acquiring an intra prediction mode of a neighboring block of the current block; and acquiring a most probable intra prediction mode list of the current block on the basis of whether the intra prediction mode of the neighboring block uses a sample of the unavailable reference sample area.
PCT/KR2017/015236 2016-12-21 2017-12-21 Method and device for encoding or decoding video signal Ceased WO2018117686A2 (en)

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
KR10-2016-0175214 2016-12-21
KR20160175214 2016-12-21
KR1020170010076A KR102835516B1 (en) 2017-01-20 2017-01-20 Method and apparatus for encoding or decoding video signal
KR10-2017-0010076 2017-01-20
KR10-2017-0010077 2017-01-20
KR1020170010077A KR20180086094A (en) 2017-01-20 2017-01-20 Method and apparatus for encoding or decoding video signal
KR10-2017-0155365 2017-11-21
KR1020170155365A KR102435502B1 (en) 2016-12-21 2017-11-21 Method and apparatus for encoding or decoding video signal

Publications (2)

Publication Number Publication Date
WO2018117686A2 WO2018117686A2 (en) 2018-06-28
WO2018117686A3 true WO2018117686A3 (en) 2018-08-16

Family

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Application Number Title Priority Date Filing Date
PCT/KR2017/015236 Ceased WO2018117686A2 (en) 2016-12-21 2017-12-21 Method and device for encoding or decoding video signal

Country Status (1)

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WO (1) WO2018117686A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20210021938A (en) * 2018-07-18 2021-03-02 삼성전자주식회사 Encoding method and device, decoding method and device
CN118748718A (en) * 2018-08-24 2024-10-08 三星电子株式会社 Coding method and coding device, decoding method and decoding device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20120129726A (en) * 2011-05-20 2012-11-28 주식회사 케이티 Methods of decoding intra prediction mode and decoder
KR20140008503A (en) * 2012-07-10 2014-01-21 한국전자통신연구원 Method and apparatus for image encoding/decoding
JP2014187535A (en) * 2013-03-22 2014-10-02 Fujitsu Ltd Dynamic image encoder, dynamic image encoding method, and dynamic image encoding program
KR101662411B1 (en) * 2011-06-03 2016-10-10 퀄컴 인코포레이티드 Intra prediction mode coding with directional partitions
KR20160143588A (en) * 2015-06-05 2016-12-14 인텔렉추얼디스커버리 주식회사 Method and apparartus for encoding/decoding for intra prediction mode

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20120129726A (en) * 2011-05-20 2012-11-28 주식회사 케이티 Methods of decoding intra prediction mode and decoder
KR101662411B1 (en) * 2011-06-03 2016-10-10 퀄컴 인코포레이티드 Intra prediction mode coding with directional partitions
KR20140008503A (en) * 2012-07-10 2014-01-21 한국전자통신연구원 Method and apparatus for image encoding/decoding
JP2014187535A (en) * 2013-03-22 2014-10-02 Fujitsu Ltd Dynamic image encoder, dynamic image encoding method, and dynamic image encoding program
KR20160143588A (en) * 2015-06-05 2016-12-14 인텔렉추얼디스커버리 주식회사 Method and apparartus for encoding/decoding for intra prediction mode

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WO2018117686A2 (en) 2018-06-28

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