WO2012002765A3 - Method and apparatus for predicting color space, and method and apparatus for encoding/decoding image using same - Google Patents

Method and apparatus for predicting color space, and method and apparatus for encoding/decoding image using same Download PDF

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Publication number
WO2012002765A3
WO2012002765A3 PCT/KR2011/004839 KR2011004839W WO2012002765A3 WO 2012002765 A3 WO2012002765 A3 WO 2012002765A3 KR 2011004839 W KR2011004839 W KR 2011004839W WO 2012002765 A3 WO2012002765 A3 WO 2012002765A3
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WO
WIPO (PCT)
Prior art keywords
frequency domain
predictive
block
color space
predicting
Prior art date
Application number
PCT/KR2011/004839
Other languages
French (fr)
Korean (ko)
Other versions
WO2012002765A2 (en
Inventor
송진한
임정연
김용구
최윤식
최영호
정진우
Original Assignee
에스케이텔레콤 주식회사
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.)
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Publication date
Application filed by 에스케이텔레콤 주식회사 filed Critical 에스케이텔레콤 주식회사
Publication of WO2012002765A2 publication Critical patent/WO2012002765A2/en
Publication of WO2012002765A3 publication Critical patent/WO2012002765A3/en

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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
    • H04N19/169—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
    • H04N19/10—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
    • H04N19/169—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
    • H04N19/18—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 a set of transform coefficients
    • 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
    • H04N19/186—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 a colour or a chrominance component
    • 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
    • H04N19/48—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using compressed domain processing techniques other than decoding, e.g. modification of transform coefficients, variable length coding [VLC] data or run-length data
    • 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
    • H04N19/60—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
    • H04N7/00—Television systems
    • H04N7/24—Systems for the transmission of television signals using pulse code modulation

Landscapes

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

Abstract

One embodiment of the present invention relates to a method and an apparatus for predicting a color space and to a method and an apparatus for encoding/decoding an image using same. According to one embodiment of the present invention, provided are an apparatus and a method for predicting a color space, comprising: a predictive weighted value calculation unit which determines a weighted block from an encoded peripheral block of the current block, and calculates a predictive weighted value for each frequency domain from the weighted block; a predictive frequency selection unit which calculates predictive gains for each frequency domain from the predictive weighted value for each frequency domain, and selects a frequency domain to be used in predicting a color space, using the predictive gains for each frequency domain; and a frequency domain prediction unit which receives a converted residual block, and predicts a color space for the converted residual block from the predictive weighted value of the selected frequency domain. According to one embodiment of the present invention, provided are an apparatus and a method for predicting a color space, and a method and an apparatus for encoding/decoding an image using same, comprising: a predictive weighted value calculation unit which determines a weighted block from a decoded peripheral block of the current block, and calculates a predictive weighted value for each frequency domain from the weighted block; a predictive frequency selection unit which calculates predictive gains for each frequency domain from the predictive weighted value for each frequency domain, and selects a frequency domain to be used in predicting a color space, using the predictive gains for each frequency domain; and a frequency domain restoring unit which restores a converted residual block from a color space prediction block.
PCT/KR2011/004839 2010-07-01 2011-07-01 Method and apparatus for predicting a color space, and method and apparatus for encoding/decoding an image using same WO2012002765A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020100063359A KR101673027B1 (en) 2010-07-01 2010-07-01 Method and Apparatus for Color Space Prediction and Method and Apparatus for Encoding/Decoding of Video Data Thereof
KR10-2010-0063359 2010-07-01

Publications (2)

Publication Number Publication Date
WO2012002765A2 WO2012002765A2 (en) 2012-01-05
WO2012002765A3 true WO2012002765A3 (en) 2012-05-03

Family

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PCT/KR2011/004839 WO2012002765A2 (en) 2010-07-01 2011-07-01 Method and apparatus for predicting a color space, and method and apparatus for encoding/decoding an image using same

Country Status (2)

Country Link
KR (1) KR101673027B1 (en)
WO (1) WO2012002765A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015055832A1 (en) * 2013-10-18 2015-04-23 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Multi-component picture or video coding concept
GB2621915A (en) * 2022-06-16 2024-02-28 Mbda Uk Ltd Method for image encoding

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20060079051A (en) * 2004-12-30 2006-07-05 삼성전자주식회사 Color image encoding and decoding method and apparatus using a correlation between chrominance components
WO2009001864A1 (en) * 2007-06-28 2008-12-31 Mitsubishi Electric Corporation Image encoder and image decoder

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20060079051A (en) * 2004-12-30 2006-07-05 삼성전자주식회사 Color image encoding and decoding method and apparatus using a correlation between chrominance components
WO2009001864A1 (en) * 2007-06-28 2008-12-31 Mitsubishi Electric Corporation Image encoder and image decoder

Also Published As

Publication number Publication date
WO2012002765A2 (en) 2012-01-05
KR101673027B1 (en) 2016-11-04
KR20120002712A (en) 2012-01-09

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