DK2827593T3 - Interpolations-lignende filtrering af heltal-pixel-positioner i videokodning - Google Patents

Interpolations-lignende filtrering af heltal-pixel-positioner i videokodning Download PDF

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DK2827593T3
DK2827593T3 DK14184120.5T DK14184120T DK2827593T3 DK 2827593 T3 DK2827593 T3 DK 2827593T3 DK 14184120 T DK14184120 T DK 14184120T DK 2827593 T3 DK2827593 T3 DK 2827593T3
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pixel
filter
integer
sub
video
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DK14184120.5T
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Yan Ye
Marta Karczewicz
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Qualcomm Inc
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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
    • H04N19/523—Motion estimation or motion compensation with sub-pixel accuracy
    • 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
    • H04N19/169—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
    • H04N19/182—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 pixel
    • 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
    • H04N19/80—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
    • H04N19/10—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
    • H04N19/12—Selection from among a plurality of transforms or standards, e.g. selection between discrete cosine transform [DCT] and sub-band transform or selection between H.263 and H.264
    • H04N19/122—Selection of transform size, e.g. 8x8 or 2x4x8 DCT; Selection of sub-band transforms of varying structure or type
    • 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
    • H04N19/146—Data rate or code amount at the encoder output
    • H04N19/147—Data rate or code amount at the encoder output according to rate distortion criteria
    • 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
    • H04N19/192—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 the adaptation method, adaptation tool or adaptation type being iterative or recursive
    • 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
    • H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
    • H04N19/63—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding using sub-band based transform, e.g. wavelets
    • H04N19/635—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding using sub-band based transform, e.g. wavelets characterised by filter definition or implementation details

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

Claims (10)

1. Fremgangsmåde til at udøve en bevægelseskompensationsproces under kodning eller afkodning af en videoblok indenfor en kodet ramme af en videosekvens, hvilken fremgangsmåde omfatter: opnåelse af blokke af pixels fra én eller flere videoreferencerammer i bevægelseskompensationsprocessen, hvor blokkene af pixels omfatter rekonstruerede referenceblokke der tidligere var afkodet og omfatter heltalpixelværdier svarende til heltalpixelpositioner inde i blokkene af pixels; at påføre filtrering til en heltalpixelværdi af heltalpixelværdierne baseret på andre heltalpixelværdier inde i blokkene af pixels og en original heltalpixelværdi af heltalpixelværdien for at generere en justeret heltalpixelværdi, hvor den justerede heltalpixelværdi svarer til en heltalpixelposition omgivet af andre heltalpixelpositioner til hvilke de andre heltalpixelværdier svarer, og generering afen prognoseblok i bevægelseskompensationsprocessen under kodningen eller afkodningen af videoblokken baseret mindst delvist på den justerede heltalpixelværdi; hvilken fremgangsmåde er kendetegnet ved at et 5-til-5-interpolationsfilter i form af
anvendes til filtrering af heltalpixel, hvor pFP er den justerede heltalpixelværdi, Pi,j er heltalpixelværdien ved position (i, j), hFPi,j er koefficienten for position (i, j), og oFP er et filteroffset.
2. Fremgangsmåden ifølge krav 1, hvor fremgangsmåden udføres under en indkodningsproces, hvilken fremgangsmåde yderligere omfatter generering afen restvideoblok som en forskel mellem en strømvideoblok der kodes og prognoseblokken.
3. Fremgangsmåden ifølge krav 1, hvor fremgangsmåden udføres under en indkodningsproces, hvilken fremgangsmåde yderligere omfatter indkodning af et sæt af filterkoefficienter pr. kodet ramme for heltal-filtrering.
4. Fremgangsmåden ifølge krav 1, hvor fremgangsmåden udføres underen afkodningsproces, hvilken fremgangsmåde yderligere omfatter generering afen rekonstrueret videoblok som en sum af en restvideoblok associeret med en strømvideoblok der afkodes og prognoseblokken.
5. Fremgangsmåden ifølge krav 1, hvor fremgangsmåden udføres underen afkodningsproces, hvilken fremgangsmåde yderligere omfatter at modtage et sæt af filterkoefficienter pr. kodet ramme for heltal-filtrering.
6. Indretning der udøver en bevægelseskompensationsproces under kodning eller afkodning af en videoblok indenfor en kodet ramme af en videosekvens, indretningen omfatter: organ til opnåelse af blokke af pixels fra én eller flere videoreferencerammer i bevægelseskompensationsprocessen, hvor blokkene af pixels omfatter rekonstruerede referenceblokke der tidligere var afkodet og omfatter heltalpixelværdier svarende til heltalpixelpositioner inde i blokkene af pixels; organ til at påføre filtrering til en heltalpixelværdi af heltalpixelværdierne baseret på andre heltalpixelværdier inde i blokken af pixels og en original heltalpixelværdi af heltalpixelværdien for at generere en justeret heltalpixelværdi, hvor den justerede heltalpixelværdi svarer til en heltalpixelposition omgivet af andre heltalpixelpositioner til hvilke de andre heltalpixelværdier svarer, og organ til at genere en prognoseblok i bevægelseskompensationsprocessen under kodningen eller afkodningen af videoblokken baseret mindst delvist på den justerede heltalpixelværdi; kendetegnet ved at et 5-til-5-interpolationsfilter i form af
anvendes til filtrering af heltalpixel, hvor pFP er den justerede heltalpixelværdi, Py er heltalpixelværdien ved position (i, j), hFPy er i koefficienten for position (i, j), og oFP er et filteroffset.
7. Indretningen ifølge krav 6, hvor indretningen udøver en kodningsproces, indretningen omfatter organ til generering af en restvideoblok som en forskel mellem en strømvideoblok der kodes og prognoseblokken. I
8. Indretningen ifølge krav 6, hvor indretningen udøver en afkodningsproces, indretningen omfatter yderligere organ til generering af en rekonstrueret videoblok som en sum af en restvideoblok associeret med en strømvideoblok der afkodes og prognoseblokken.
9. Ikke-transitorisk computer-læsbart lagermedium omfattende instruktioner som når de udføres af en processor forårsager processoren til at udøve en bevægelseskompensationsproces under kodning eller afkodning af en videoblok indenfor en kodet ramme afen videosekvens, hvor instruktionerne forårsager i processoren til at: opnå blokke af pixels fra én eller flere videoreferencerammer i bevægelseskompensationsprocessen, hvor blokkene af pixels omfatter rekonstruerede referenceblokke der tidligere var afkodet og omfatter heltalpixelværdier svarende til heltalpixelpositioner inde i blokken af pixels; i påføre filtrering til en heltalpixelværdi af heltalpixelværdierne baseret på andre heltalpixelværdier inde i blokkene af pixels og en original heltalpixelværdi af heltalpixelværdien for at generere en justeret heltalpixelværdi, hvor den justerede heltalpixelværdi svarer til en heltalpixelposition omgivet af andre heltalpixelpositioner til hvilke de andre i heltalpixelværdier svarer, og generere en prognoseblok i bevægelseskompensationsprocessen under kodningen eller afkodningen af videoblokken baseret mindst delvist på den justerede heltalpixelværdi; kendetegnet ved at et 5-til-5-interpolationsfilter i form af
anvendes til filtrering af heltalpixel, hvor pFP er den justerede heltalpixelværdi, Pi,] er heltalpixelværdien ved position (i, j), hFPij er koefficienten for position (i, j), og oFP er et filteroffset.
10. Ikke-transistorisk computer-læsbart lagermedium ifølge krav 9, hvor instruktionerne forårsager indretningen til at udøve en afkodningsproces, hvor instruktionerne forårsager indretningen til at generere en rekonstrueret videoblok som en sum af en restvideoblok associeret med en strømvideoblok der afkodes og prognoseblokken.
DK14184120.5T 2008-04-10 2009-04-10 Interpolations-lignende filtrering af heltal-pixel-positioner i videokodning DK2827593T3 (da)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US4402008P 2008-04-10 2008-04-10
US4402308P 2008-04-10 2008-04-10
US4424008P 2008-04-11 2008-04-11
US5737308P 2008-05-30 2008-05-30
US12/420,292 US9077971B2 (en) 2008-04-10 2009-04-08 Interpolation-like filtering of integer-pixel positions in video coding
EP09730214A EP2304960A1 (en) 2008-04-10 2009-04-10 Interpolation-like filtering of integer-pixel positions in video coding

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CA2719404C (en) 2013-07-30
CN102017631B (zh) 2013-05-01
US20090257501A1 (en) 2009-10-15
PT2827593T (pt) 2017-07-24
ES2633476T3 (es) 2017-09-21
CN102017631A (zh) 2011-04-13
BRPI0910638B1 (pt) 2020-11-24
HUE033226T2 (hu) 2017-11-28
WO2009126929A1 (en) 2009-10-15
US9077971B2 (en) 2015-07-07
KR101214021B1 (ko) 2012-12-20
PL2827593T3 (pl) 2017-10-31
JP5575747B2 (ja) 2014-08-20
CA2719404A1 (en) 2009-10-15
EP2827593B1 (en) 2017-05-17
TW201006252A (en) 2010-02-01
BRPI0910638A2 (pt) 2016-08-02
EP2827593A1 (en) 2015-01-21
EP2304960A1 (en) 2011-04-06
TWI523528B (zh) 2016-02-21
JP2011517240A (ja) 2011-05-26

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