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FI4060992T3 - Järjestelmiä ja menetelmiä videokoodauksen yleistettyä monen hypoteesin ennustusta varten - Google Patents

Järjestelmiä ja menetelmiä videokoodauksen yleistettyä monen hypoteesin ennustusta varten

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Publication number
FI4060992T3
FI4060992T3 FIEP22166000.4T FI22166000T FI4060992T3 FI 4060992 T3 FI4060992 T3 FI 4060992T3 FI 22166000 T FI22166000 T FI 22166000T FI 4060992 T3 FI4060992 T3 FI 4060992T3
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Finland
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prediction unit
current prediction
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FIEP22166000.4T
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English (en)
Inventor
Xiaoyu Xiu
Yuwen He
Yan Ye
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Interdigital Vc Holdings Inc
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Publication of FI4060992T3 publication Critical patent/FI4060992T3/fi

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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
    • H04N19/10—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
    • H04N19/13—Adaptive entropy coding, e.g. adaptive variable length coding [AVLC] or context adaptive binary arithmetic coding [CABAC]
    • 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
    • H04N19/134—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
    • H04N19/137—Motion inside a coding unit, e.g. average field, frame or block difference
    • H04N19/139—Analysis of motion vectors, e.g. their magnitude, direction, variance or reliability
    • 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
    • H04N19/46—Embedding additional information in the video signal during the compression process
    • H04N19/463—Embedding additional information in the video signal during the compression process by compressing encoding parameters before transmission
    • 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
    • H04N19/527—Global motion vector 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
    • H04N19/50—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
    • H04N19/573—Motion compensation with multiple frame prediction using two or more reference frames in a given prediction direction
    • 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
    • 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
    • H04N19/577—Motion compensation with bidirectional frame interpolation, i.e. using B-pictures
    • 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

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

Claims (11)

EP4060992 1 Patenttivaatimukset
1. Videon koodausmenetelmä, joka käsittää seuraavaa: koodataan ainakin nykyisen kuvan nykyiselle ennusteyksikölle yhden lohkotason painotusindeksi, joka yksilöi ensimmäisen painon ja toisen painon, jolloin ainakin yhdellä ensimmäisestä ja toisesta painosta on arvo, joka ei ole yhtä suuri kuin O, 0,5 tai 1; ja kullekin nykyisen ennusteyksikön 4x4-yksiklölle: hankitaan ensimmäinen alilohkon liikevektori ja toinen alilohkon liikevektori — nykyisen ennusteyksikön affiinisen liikemallin perusteella ja ennustetaan = 4x4-yksikkö — ensimmäisen = referenssikuvan ensimmäisen referenssilohkon, johon ensimmäinen alilohkon liikevektori osoittaa, ja toisen referenssikuvan toisen referenssilohkon, johon toisen alilohkon liikevektori osoittaa, painotettuna summana, jolloin ensimmäistä referenssilohkoa — painotetaan ensimmäisellä painolla ja toista referenssilohkoa painotetaan toisella painolla; jolloin ensimmäinen paino ja toinen paino ovat samat kussakin nykyisen ennusteyksikön 4x4-yksiköistä.
2. Videon dekoodausmenetelmä, joka käsittää seuraavaa: dekoodataan ainakin nykyisen kuvan nykyiselle ennusteyksikölle yhden lohkotason painotusindeksi, joka yksilöi ensimmäisen painon ja toisen painon, jolloin ainakin yhdellä ensimmäisestä ja toisesta painosta on arvo, joka ei ole yhtä suuri kuin O, 0,5 tai 1; ja — kullekin nykyisen ennusteyksikön 4x4-yksiklölle: hankitaan ensimmäinen alilohkon liikevektori ja toinen alilohkon liikevektori nykyisen ennusteyksikön affiinisen liikemallin perusteella ja ennustetaan = 4x4-yksikkö — ensimmäisen = referenssikuvan ensimmäisen referenssilohkon, johon ensimmäinen alilohkon liikevektori osoittaa, ja toisen — referenssikuvan toisen referenssilohkon, johon toisen alilohkon liikevektori osoittaa, painotettuna summana, jolloin ensimmäistä referenssilohkoa painotetaan ensimmäisellä painolla ja toista referenssilohkoa painotetaan toisella painolla;
EP4060992 2 jolloin ensimmäinen paino ja toinen paino ovat samat kussakin nykyisen ennusteyksikön 4x4-yksiköistä.
3. Videon koodauslaite, joka käsittää prosessorin, joka on konfiguroitu — suorittamaan ainakin seuraavaa: koodataan ainakin nykyisen kuvan nykyiselle ennusteyksikölle yhden lohkotason painotusindeksi, joka yksilöi ensimmäisen painon ja toisen painon, jolloin ainakin yhdellä ensimmäisestä ja toisesta painosta on arvo, joka ei ole yhtä suuri kuin O, 0,5 tai 1; ja — kullekin nykyisen ennusteyksikön 4x4-yksiklölle: hankitaan ensimmäinen alilohkon liikevektori ja toinen alilohkon liikevektori nykyisen ennusteyksikön affiinisen liikemallin perusteella ja ennustetaan = 4x4-yksikkö — ensimmäisen = referenssikuvan ensimmäisen referenssilohkon, johon ensimmäinen alilohkon liikevektori osoittaa, ja toisen —referenssikuvan toisen referenssilohkon, johon toisen alilohkon liikevektori osoittaa, painotettuna summana, jolloin ensimmäistä referenssilohkoa painotetaan ensimmäisellä painolla ja toista referenssilohkoa painotetaan toisella painolla; jolloin ensimmäinen paino ja toinen paino ovat samat kussakin nykyisen — ennusteyksikön 4x4-yksiköistä.
4. Videon dekoodauslaite, joka käsittää prosessorin, joka on konfiguroitu suorittamaan ainakin seuraavaa: dekoodataan ainakin nykyisen kuvan nykyiselle ennusteyksikölle yhden —lohkotason painotusindeksi, joka yksilöi ensimmäisen painon ja toisen painon, jolloin ainakin yhdellä ensimmäisestä ja toisesta painosta on arvo, joka ei ole yhtä suuri kuin O, 0,5 tai 1; ja kullekin nykyisen ennusteyksikön 4x4-yksiklölle: hankitaan ensimmäinen alilohkon liikevektori ja toinen alilohkon liikevektori — nykyisen ennusteyksikön affiinisen liikemallin perusteella ja ennustetaan = 4x4-yksikkö — ensimmäisen = referenssikuvan ensimmäisen referenssilohkon, johon ensimmäinen alilohkon liikevektori osoittaa, ja toisen referenssikuvan toisen referenssilohkon, johon toisen alilohkon liikevektori
EP4060992 3 osoittaa, painotettuna summana, jolloin ensimmäistä referenssilohkoa painotetaan ensimmäisellä painolla ja toista referenssilohkoa painotetaan toisella painolla; jolloin ensimmäinen paino ja toinen paino ovat samat kussakin nykyisen lohkon 4x4-yksiköistä.
5. Patenttivaatimuksen 1 mukainen menetelmä tai patenttivaatimuksen 3 mukainen laite, jossa lohkotason painoindeksin koodaus käsittää painoindeksin yhdistämisen koodisanaan käyttämällä katkaistua unaarikoodia ja koodisanan entropiakoodauksen = bittivirrassa, jolloin painoindeksi osoittaa ainakin ensimmäisen painon.
6. Patenttivaatimuksen 2 mukainen menetelmä tai patenttivaatimuksen 4 mukainen laite, jossa lohkotason informaation dekoodaus käsittää koodisanan dekoodauksen bittivirrasta ja painoindeksin ottamisen talteen koodisanasta käyttämällä katkaistua unaarikoodia, jolloin painoindeksi osoittaa ainakin ensimmäisen painon.
7. Patenttivaatimuksen 1 tai 2 mukainen menetelmä tai patenttivaatimuksen 3 tai 4 mukainen laite, jossa toinen paino identifioidaan vähentämällä ensimmäinen paino yhdestä.
8. Patenttivaatimuksen 1 tai 2 mukainen menetelmä tai patenttivaatimuksen 3 tai 4 mukainen laite, jossa ensimmäinen paino ja toinen paino identifioidaan ennalta — määritellystä painojoukosta.
9. Patenttivaatimuksen 1 mukainen menetelmä tai patenttivaatimuksen 3 mukainen laite, jossa nykyisen ennusteyksikön ennuste käsittää nykyisen ennusteyksikön kunkin 4x4-yksikön ennusteet, jolloin se käsittää lisäksi = seuraavaa: vähennetään nykyisen ennusteyksikön ennuste syötelohkosta jäännöksen muodostamiseksi ja koodataan jäännös bittivirtaan.
EP4060992 4
10. Patenttivaatimuksen 2 mukainen menetelmä tai patenttivaatimuksen 4 mukainen laite, jossa nykyisen ennusteyksikön ennuste käsittää nykyisen ennusteyksikön kunkin 4x4-yksikön ennusteet, jolloin se käsittää lisäksi seuraavaa: dekoodataan bittivirrasta jäännös nykyiselle ennusteyksikölle ja lisätään jäännös ennustettuun nykyiseen ennusteyksikköön rekonstruoidun lohkon muodostamiseksi.
11. Tietokonekielinen tallennusväline, joka sisältää komentoja, jotka saavat yhden tai useamman prosessorin suorittamaan patenttivaatimuksen 1 tai 2 mukaisen menetelmän.
FIEP22166000.4T 2016-05-13 2017-05-11 Järjestelmiä ja menetelmiä videokoodauksen yleistettyä monen hypoteesin ennustusta varten FI4060992T3 (fi)

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US201662336227P 2016-05-13 2016-05-13
US201662342772P 2016-05-27 2016-05-27
US201662399234P 2016-09-23 2016-09-23
US201662415187P 2016-10-31 2016-10-31

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US (2) US11363253B2 (fi)
EP (3) EP4060992B1 (fi)
JP (4) JP2019519148A (fi)
KR (2) KR102379874B1 (fi)
CN (4) CN115118971B (fi)
FI (1) FI4060992T3 (fi)
WO (1) WO2017197146A1 (fi)

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