WO2000022827A3 - Verbesserte prädiktion der dc- bzw. ac-koeffizienten - Google Patents

Verbesserte prädiktion der dc- bzw. ac-koeffizienten Download PDF

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Publication number
WO2000022827A3
WO2000022827A3 PCT/DE1999/003230 DE9903230W WO0022827A3 WO 2000022827 A3 WO2000022827 A3 WO 2000022827A3 DE 9903230 W DE9903230 W DE 9903230W WO 0022827 A3 WO0022827 A3 WO 0022827A3
Authority
WO
WIPO (PCT)
Prior art keywords
data
coefficients
improved prediction
prediction values
coding
Prior art date
Application number
PCT/DE1999/003230
Other languages
English (en)
French (fr)
Other versions
WO2000022827A2 (de
Inventor
Michael Wollborn
Original Assignee
Bosch Gmbh Robert
Michael Wollborn
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 Bosch Gmbh Robert, Michael Wollborn filed Critical Bosch Gmbh Robert
Priority to EP99959188A priority Critical patent/EP1046300A1/de
Priority to JP2000576622A priority patent/JP2002528004A/ja
Publication of WO2000022827A2 publication Critical patent/WO2000022827A2/de
Publication of WO2000022827A3 publication Critical patent/WO2000022827A3/de

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
    • H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform 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
    • H04N19/60—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
    • H04N19/60—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)

Abstract

Es werden ein Verfahren und Anordnungen zur Verringerung der Datenmenge, insbesondere bei der Bildkodierung (300) und Bilddekodierung (400) gemäss dem MPEG-4-Standard, für eine zeitliche Abfolge von zu kodierenden oder zu dekodierenden Informationen, insbesondere Bilder (5), die bei der Kodierung in Teilinformationen (10, 20), insbesondere Bildblöcke, aufgeteilt werden, wobei Prädiktionswerte (250) mittels einer Quasidivision erzeugt werden und wobei die Prädiktionswerte (250) aus der Summe einer ersten Näherung (230) und einer zweiten Näherung (240) gebildet werden.
PCT/DE1999/003230 1998-10-12 1999-10-07 Verbesserte prädiktion der dc- bzw. ac-koeffizienten WO2000022827A2 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP99959188A EP1046300A1 (de) 1998-10-12 1999-10-07 VERBESSERTE PRÄDIKTION DER DC-bzw. AC-KOEFFIZIENTEN
JP2000576622A JP2002528004A (ja) 1998-10-12 1999-10-07 Ｄｃないしａｃ係数の改善された予測

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19846866A DE19846866A1 (de) 1998-10-12 1998-10-12 Verbesserte Prädiktion der DC- bzw. AC-Koeffizienten
DE19846866.0 1998-10-12

Publications (2)

Publication Number Publication Date
WO2000022827A2 WO2000022827A2 (de) 2000-04-20
WO2000022827A3 true WO2000022827A3 (de) 2000-07-20

Family

ID=7884130

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1999/003230 WO2000022827A2 (de) 1998-10-12 1999-10-07 Verbesserte prädiktion der dc- bzw. ac-koeffizienten

Country Status (4)

Country Link
EP (1) EP1046300A1 (de)
JP (1) JP2002528004A (de)
DE (1) DE19846866A1 (de)
WO (1) WO2000022827A2 (de)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19645724C1 (de) * 1996-11-06 1998-05-07 Sican Gmbh Verfahren und Vorrichtung zur DPCM-Codierung

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3142356B2 (ja) * 1992-03-12 2001-03-07 富士通株式会社 量子化装置および画像データ量子化装置
KR100303685B1 (ko) * 1996-09-30 2001-09-24 송문섭 영상 예측부호화 장치 및 그 방법

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19645724C1 (de) * 1996-11-06 1998-05-07 Sican Gmbh Verfahren und Vorrichtung zur DPCM-Codierung

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
SHEN S -M ET AL: "A METHOD OF ADAPTIVE PREDICTION IN THE TRANSFORMATION DOMAIN", ITG-FACHBERICHTE,DE,VDE VERLAG, BERLIN, vol. 143, 10 September 1997 (1997-09-10), pages 709 - 712, XP000199865, ISSN: 0932-6022 *

Also Published As

Publication number Publication date
DE19846866A1 (de) 2000-05-04
WO2000022827A2 (de) 2000-04-20
EP1046300A1 (de) 2000-10-25
JP2002528004A (ja) 2002-08-27

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