WO2011155782A3 - Context modeling method and context modeling apparatus, and image encoding/decoding method and image encoding/decoding apparatus using same - Google Patents

Context modeling method and context modeling apparatus, and image encoding/decoding method and image encoding/decoding apparatus using same Download PDF

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Publication number
WO2011155782A3
WO2011155782A3 PCT/KR2011/004240 KR2011004240W WO2011155782A3 WO 2011155782 A3 WO2011155782 A3 WO 2011155782A3 KR 2011004240 W KR2011004240 W KR 2011004240W WO 2011155782 A3 WO2011155782 A3 WO 2011155782A3
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WO
WIPO (PCT)
Prior art keywords
context
image encoding
context modeling
motion vector
decoding
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Application number
PCT/KR2011/004240
Other languages
French (fr)
Korean (ko)
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WO2011155782A2 (en
Inventor
송진한
임정연
김용구
최윤식
최영호
김성제
Original Assignee
에스케이텔레콤 주식회사
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Publication of WO2011155782A2 publication Critical patent/WO2011155782A2/en
Publication of WO2011155782A3 publication Critical patent/WO2011155782A3/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
    • H04N19/50—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
    • H04N19/10—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
    • H04N19/189—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the adaptation method, adaptation tool or adaptation type used for the adaptive coding
    • H04N19/196—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the adaptation method, adaptation tool or adaptation type used for the adaptive coding being specially adapted for the computation of encoding parameters, e.g. by averaging previously computed encoding parameters
    • 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
    • H04N19/189—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the adaptation method, adaptation tool or adaptation type used for the adaptive coding
    • H04N19/196—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the adaptation method, adaptation tool or adaptation type used for the adaptive coding being specially adapted for the computation of encoding parameters, e.g. by averaging previously computed encoding parameters
    • H04N19/197—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the adaptation method, adaptation tool or adaptation type used for the adaptive coding being specially adapted for the computation of encoding parameters, e.g. by averaging previously computed encoding parameters including determination of the initial value of an encoding parameter
    • 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
    • H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
    • H04N19/61—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding in combination with predictive 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
    • H04N19/70—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by syntax aspects related to video coding, e.g. related to compression standards
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/24—Systems for the transmission of television signals using pulse code modulation

Abstract

One embodiment of the present invention relates to a context modeling method and context modeling apparatus, and to an image encoding/decoding method and image encoding/decoding apparatus using the same. According to one embodiment of the present invention, the context modeling method and the context modeling apparatus, and the image encoding/decoding method and the image encoding/decoding apparatus using the same, comprise: a context generation unit which determines the context of a peripheral block using the correlation between the motion vector of a block neighboring the peripheral block of the current block and the motion vector of the peripheral block; and a context selection unit which selects the context of the current block corresponding to the context of the peripheral block. According to one embodiment of the present invention, the context of a motion vector is generated based on the correlation with the motion vector of the peripheral block, and candidate motion vectors are adaptively provided in accordance with the condition of the peripheral block so as to efficiently encode the motion vector of the current block, thereby significantly improving the encoding performance of the motion vector of the current block, thus improving the encoding performance of a video compression apparatus or the quality of restored image.
PCT/KR2011/004240 2010-06-11 2011-06-09 Context modeling method and context modeling apparatus, and image encoding/decoding method and image encoding/decoding apparatus using same WO2011155782A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020100055681A KR20110135763A (en) 2010-06-11 2010-06-11 Method and apparatus for context modelling and method and apparatus for encoding/decoding of video data thereof
KR10-2010-0055681 2010-06-11

Publications (2)

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WO2011155782A2 WO2011155782A2 (en) 2011-12-15
WO2011155782A3 true WO2011155782A3 (en) 2012-04-19

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PCT/KR2011/004240 WO2011155782A2 (en) 2010-06-11 2011-06-09 Context modeling method and context modeling apparatus, and image encoding/decoding method and image encoding/decoding apparatus using same

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KR (1) KR20110135763A (en)
WO (1) WO2011155782A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110545419B (en) * 2012-10-12 2022-11-22 韩国电子通信研究院 Image encoding/decoding method and apparatus using the same
US11671603B2 (en) 2018-12-28 2023-06-06 Electronics Telecommunications Research Institute Image encoding/decoding method and apparatus, and recording medium storing bitstream

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100627597B1 (en) * 2002-04-26 2006-09-25 가부시키가이샤 엔티티 도코모 Image encoding apparatus, image decoding apparatus, image encoding method, image decoding method, image encoding program, and image decoding program
KR20100048435A (en) * 2008-10-31 2010-05-11 에스케이 텔레콤주식회사 Motion vector encoding/decoding method and apparatus and video encoding/decoding method and apparatus

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100627597B1 (en) * 2002-04-26 2006-09-25 가부시키가이샤 엔티티 도코모 Image encoding apparatus, image decoding apparatus, image encoding method, image decoding method, image encoding program, and image decoding program
KR20100048435A (en) * 2008-10-31 2010-05-11 에스케이 텔레콤주식회사 Motion vector encoding/decoding method and apparatus and video encoding/decoding method and apparatus

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KR20110135763A (en) 2011-12-19
WO2011155782A2 (en) 2011-12-15

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