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HUP0302055A2 - Eljárás videojel kódolására, videó kóder, eljárás kódolt videojel dekódolására, videó kóder és videó dekóder, hordozható vezeték nélküli kommunikációs eszköz - Google Patents

Eljárás videojel kódolására, videó kóder, eljárás kódolt videojel dekódolására, videó kóder és videó dekóder, hordozható vezeték nélküli kommunikációs eszköz

Info

Publication number
HUP0302055A2
HUP0302055A2 HU0302055A HUP0302055A HUP0302055A2 HU P0302055 A2 HUP0302055 A2 HU P0302055A2 HU 0302055 A HU0302055 A HU 0302055A HU P0302055 A HUP0302055 A HU P0302055A HU P0302055 A2 HUP0302055 A2 HU P0302055A2
Authority
HU
Hungary
Prior art keywords
frame
next frame
reference frame
video signal
coding
Prior art date
Application number
HU0302055A
Other languages
English (en)
Inventor
Kerem Caglar
Miska Hannuksela
Original Assignee
Nokia Corporation
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.)
Filing date
Publication date
Application filed by Nokia Corporation filed Critical Nokia Corporation
Publication of HUP0302055A2 publication Critical patent/HUP0302055A2/hu
Publication of HUP0302055A3 publication Critical patent/HUP0302055A3/hu
Publication of HU230597B1 publication Critical patent/HU230597B1/hu

Links

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
    • H04N19/102—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
    • H04N19/50—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
    • H04N19/50—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
    • H04N19/65—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using error resilience
    • 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
    • H04N19/85—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression
    • H04N19/89—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression involving methods or arrangements for detection of transmission errors at the decoder
    • H04N19/895—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression involving methods or arrangements for detection of transmission errors at the decoder in combination with error concealment

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Television Systems (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Glass Compositions (AREA)
  • Color Television Systems (AREA)
  • Error Detection And Correction (AREA)
  • Analogue/Digital Conversion (AREA)

Abstract

Egy képszekvenciát képviselő videojelet kódoló eljárás során kódoláscéljából egy soron következő képkockát fogadnak, a soron következőképkockára az ahhoz tartozó referencia-képkockából időlegeselőrejelzést képeznek, az alapértelmezett referencia-képkockátlegalább egy további referencia-képkockával összehasonlítják, azalapértelmezett referencia-képkocka és a soron következő képkockaközötti hasonlóság mértékét kiszámítják, és előre meghatározotthasonlósági mérték esetén a további referencia-képkockát azonosítóindikátort bocsátanak ki. Egy másik megoldás szerint a soron következőképkocka legalább egy részére az ahhoz tartozó referencia-képkockábólidőleges előrejelzést képeznek, az alapértelmezett referencia-képkockarészét vagy a soron következő képkockát a képszekvencia legalább egytovábbi képkockájának megfelelő részével összehasonlítják, és ahasonlóság mértékét kiszámítják, és előre meghatározott hasonlóságimérték esetén a képszekvencia további képkockáját azonosító indikátortbocsátanak ki a soron következő képkocka része vonatkozásában. Egyképszekvenciát képviselő, a soron következő képkockára az ahhoztartozó referencia-képkockából képzett időleges előrejelzés révénkódolt képkockákat tartalmazó kódolt videojelet dekódoló eljárás soránkövetkező képkockát képviselő kódolt videojelet fogadnak, és a soronkövetkező képkockának legalább az élőfejét dekódolják, ahol a soronkövetkező képkockához tartozó referencia-képkocka sikertelendekódolása esetén egy további referencia-képkockát azonosítóindikátort megvizsgálnak, és ha a soron következő képkockával ilyenindikátor van társítva, a soron következő képkockát a továbbireferencia-képkocka alapján dekódolják. A találmány tárgyát képezi méga fenti eljárást megvalósító videokóder és dekóder, továbbá azokkalfelépített hordozható vezeték nélküli kommunikációs eszköz is. Ó
HU0302055A 2000-05-15 2001-05-14 Eljárás, kóder és dekóder videójel kódolására, dekódolására, továbbá kódolt videójel, valamint számítógép program termék HU230597B1 (hu)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB0011606.1 2000-05-15
GB0011606A GB2362532B (en) 2000-05-15 2000-05-15 Video coding
PCT/EP2001/005453 WO2001089223A2 (en) 2000-05-15 2001-05-14 Video coding

Publications (3)

Publication Number Publication Date
HUP0302055A2 true HUP0302055A2 (hu) 2003-09-29
HUP0302055A3 HUP0302055A3 (en) 2005-11-28
HU230597B1 HU230597B1 (hu) 2017-02-28

Family

ID=9891561

Family Applications (1)

Application Number Title Priority Date Filing Date
HU0302055A HU230597B1 (hu) 2000-05-15 2001-05-14 Eljárás, kóder és dekóder videójel kódolására, dekódolására, továbbá kódolt videójel, valamint számítógép program termék

Country Status (15)

Country Link
US (1) US7711052B2 (hu)
EP (2) EP1287699B1 (hu)
JP (1) JP4362259B2 (hu)
KR (2) KR100929558B1 (hu)
CN (2) CN1193622C (hu)
AT (1) ATE522086T1 (hu)
AU (1) AU2001272409A1 (hu)
BR (1) BRPI0110770B1 (hu)
CA (1) CA2409027C (hu)
EE (1) EE05652B1 (hu)
GB (1) GB2362532B (hu)
HU (1) HU230597B1 (hu)
MX (1) MXPA02011201A (hu)
WO (1) WO2001089223A2 (hu)
ZA (1) ZA200208744B (hu)

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Also Published As

Publication number Publication date
ZA200208744B (en) 2004-02-24
WO2001089223A2 (en) 2001-11-22
JP4362259B2 (ja) 2009-11-11
KR20030005348A (ko) 2003-01-17
EE05652B1 (et) 2013-04-15
KR100929558B1 (ko) 2009-12-03
BRPI0110770B1 (pt) 2016-03-08
BR0110770A (pt) 2003-03-11
KR20080083030A (ko) 2008-09-12
US7711052B2 (en) 2010-05-04
GB2362532B (en) 2004-05-05
WO2001089223A3 (en) 2002-04-04
CN1633185A (zh) 2005-06-29
EP2148513B1 (en) 2012-10-31
HK1079938A1 (zh) 2006-04-13
ATE522086T1 (de) 2011-09-15
EP1287699A2 (en) 2003-03-05
HU230597B1 (hu) 2017-02-28
CA2409027C (en) 2011-11-01
EP1287699B1 (en) 2011-08-24
EP2148513A2 (en) 2010-01-27
EP2148513A3 (en) 2010-08-04
CN100394802C (zh) 2008-06-11
HUP0302055A3 (en) 2005-11-28
CA2409027A1 (en) 2001-11-22
GB2362532A (en) 2001-11-21
MXPA02011201A (es) 2003-03-10
CN1193622C (zh) 2005-03-16
AU2001272409A1 (en) 2001-11-26
JP2003533950A (ja) 2003-11-11
CN1440623A (zh) 2003-09-03
EE200200642A (et) 2004-04-15
GB0011606D0 (en) 2000-07-05
KR100892119B1 (ko) 2009-04-09
US20010040700A1 (en) 2001-11-15

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