DK2777283T3 - Effektiv prædiktion under anvendelse af partitionskodning - Google Patents

Effektiv prædiktion under anvendelse af partitionskodning Download PDF

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DK2777283T3
DK2777283T3 DK12783613.8T DK12783613T DK2777283T3 DK 2777283 T3 DK2777283 T3 DK 2777283T3 DK 12783613 T DK12783613 T DK 12783613T DK 2777283 T3 DK2777283 T3 DK 2777283T3
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block
partition
coding
samples
partitions
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DK12783613.8T
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Detlev Marpe
Philipp Merkle
Christian Bartnik
Haricharan Lakshman
Karsten Müller
Thomas Wiegand
Gerhard Tech
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Ge Video Compression Llc
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    • 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
    • H04N19/10—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
    • H04N19/119—Adaptive subdivision aspects, e.g. subdivision of a picture into rectangular or non-rectangular coding blocks
    • 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
    • H04N19/132—Sampling, masking or truncation of coding units, e.g. adaptive resampling, frame skipping, frame interpolation or high-frequency transform coefficient masking
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    • 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
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    • 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
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    • 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
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    • 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
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    • 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
    • H04N19/126—Details of normalisation or weighting functions, e.g. normalisation matrices or variable uniform quantisers
    • 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
    • H04N19/134—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
    • H04N19/157—Assigned coding mode, i.e. the coding mode being predefined or preselected to be further used for selection of another element or parameter
    • 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
    • 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
    • H04N19/46—Embedding additional information in the video signal during the compression process
    • 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
    • H04N19/597—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding specially adapted for multi-view video sequence encoding
    • 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

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  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)

Claims (6)

  1. 6. Afkoder ifølge et hvilket som helst af kravene 1 til 5, der endvidere er konfigureret til at anvende den forudbestemte blok (210) som en reference i en prædiktionssløjfe i afkoderen.
  2. 7. Koder til kodning af et samplearray (302) i en datastrøm (304), konfigureret til at aflede en bipartition af en forudbestemt blok (210) af samplearrayet (302) i første og andre partitioner ved at bestemme et mål for en central tendens af rekonstruerede sampleværdier af en referenceblok af billedet, der ligger sammen med den forudbestemte blok (210), at segmentere referenceblokken ved sammenligning af hver rekonstrueret sampleværdi af referenceblokken med en tærskel, der er defineret globalt for de rekonstruerede sampleværdier af referenceblokken og afhænger af målet for den centrale tendens, for at opnå en bisegmentering af referenceblokken i første og forudbestemte partitioner og rumligt at overføre bisegmenteringen af billedets referenceblok til den forudbestemte blok (210) af dybde-/disparitetskortet for at opnå de første og de andre partitioner, eller for hver af en flerhed af blokstørrelser at frembringe en rangordnet liste af wedglet-mønstre, hvor hvert wedglet-mønster svarer til en kombination af start- og slutpunkt af en wedglet-separationslinje, ved anvendelse af en algoritme, der bestemmer, hvilke samples, der skal markeres for at danne en nær tilnærmelsesværdi til en lige linje mellem start- og slutpunkt, og at indeksere et wedglet-mønster inden for en liste af wedglet-mønstre frembragt til en blokstørrelse af den forudbestemte blok (210) under anvendelse af et indeks, der eksplicit signaleres i datastrømmen (304) for at opnå de første og de andre partitioner; at associere hver af hosliggende samples af samplearrayet (302), der støder op til den forudbestemte blok (210), med en respektiv en af de første og de andre partitioner, således at hver hosliggende sample støder op til den partition, hvormed samme er associeret; at forudsige den forudbestemte blok (210) ved tildeling af en middelværdi af værdier af de hosliggende samples, der er associeret med den første partition, til samples af samplearrayet (302) positioneret inden for den første partition og en middelværdi af værdier af de hosliggende samples, der er associeret med den anden partition, til samples af samplearrayet (302) positioneret inden for den anden partition.
  3. 8. Fremgangsmåde til rekonstruktion af et af et samplearray (302) fra en datastrøm (304), omfattende at aflede en bipartition af en forudbestemt blok (210) af samplearrayet (302) i første og andre partitioner ved at bestemme et mål for en central tendens af rekonstruerede sampleværdier af en referenceblok af billedet, der ligger sammen med den forudbestemte blok (210), at segmentere referenceblokken ved sammenligning af hver rekonstrueret sampleværdi af referenceblokken med en tærskel, der er defineret globalt for de rekonstruerede sampleværdier af referenceblokken og afhænger af målet for den centrale tendens, for at opnå en bisegmentering af referenceblokken i første og forudbestemte partitioner og rumligt at overføre bisegmenteringen af billedets referenceblok til den forudbestemte blok (210) af dybde-/disparitetskortet for at opnå de første og de andre partitioner, eller for hver af en flerhed af blokstørrelser at frembringe en rangordnet liste af wedglet-mønstre, hvor hvert wedglet-mønster svarer til en kombination af start- og slutpunkt af en wedglet-separationslinje, ved anvendelse af en algoritme, der bestemmer, hvilke samples, der skal markeres for at danne en nær tilnærmelsesværdi til en lige linje mellem start- og slutpunkt, og at indeksere et wedglet-mønster inden for en liste af wedglet-mønstre frembragt til en blokstørrelse af den forudbestemte blok (210) under anvendelse af et indeks, der eksplicit signaleres i datastrømmen (304) for at opnå de første og de andre partitioner; at associere hver af hosliggende samples af samplearrayet (302), der støder op til den forudbestemte blok (210), med en respektiv en af de første og de andre partitioner, således at hver hosliggende sample støder op til den partition, hvormed samme er associeret; at forudsige den forudbestemte blok (210) ved tildeling af en middelværdi af værdier af de hosliggende samples, der er associeret med den første partition, til samples af samplearrayet (302) positioneret inden for den første partition og/eller en middelværdi af værdier af de hosliggende samples, der er associeret med den anden partition, til samples af samplearrayet (302) positioneret inden for den anden partition.
  4. 9. Fremgangsmåde til kodning af et samplearray (302) i en datastrøm (304), omfattende at aflede en bipartition af en forudbestemt blok (210) af samplearrayet (302) i første og andre partitioner ved at bestemme et mål for en central tendens af rekonstruerede sampleværdier af en referenceblok af billedet, der ligger sammen med den forudbestemte blok (210), at segmentere referenceblokken ved sammenligning af hver rekonstrueret sampleværdi af referenceblokken med en tærskel, der er defineret globalt for de rekonstruerede sampleværdier af referenceblokken og afhænger af målet for den centrale tendens, for at opnå en bisegmentering af referenceblokken i første og forudbestemte partitioner og rumligt at overføre bisegmenteringen af billedets referenceblok til den forudbestemte blok (210) af dybde-/disparitetskortet for at opnå de første og de andre partitioner, eller for hver af en flerhed af blokstørrelser at frembringe en rangordnet liste af wedglet-mønstre, hvor hvert wedglet-mønster svarer til en kombination af start- og slutpunkt af en wedglet-separationslinje, ved anvendelse af en algoritme, der bestemmer, hvilke samples, der skal markeres for at danne en nær tilnærmelsesværdi til en lige linje mellem start- og slutpunkt, og at indeksere et wedglet-mønster inden for en liste af wedglet-mønstre frembragt til en blokstørrelse af den forudbestemte blok (210) ved anvendelse af et indeks, der eksplicit signaleres i datastrømmen (304) for at opnå de første og de andre partitioner; at associere hver af hosliggende samples af samplearrayet (302), der støder op til den forudbestemte blok (210), med en respektiv en af de første og de andre partitioner, således at hver hosliggende sample støder op til den partition, hvormed samme er associeret; at forudsige den forudbestemte blok (210) ved tildeling af en middelværdi af værdier af de hosliggende samples, der er associeret med den første partition, til samples af samplearrayet (302) positioneret inden for den første partition og en middelværdi af værdier af de hosliggende samples, der er associeret med den anden partition, til samples af samplearrayet (302) positioneret inden for den anden partition.
  5. 10. Computerprogram med en programkode til udførelse af en fremgangsmåde ifølge et hvilket som helst af kravene 8 eller 9, når det afvikles på en computer.
  6. 11. Datastrøm frembragt med en fremgangsmåde ifølge krav 9.
DK12783613.8T 2011-11-11 2012-11-09 Effektiv prædiktion under anvendelse af partitionskodning DK2777283T3 (da)

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