FR2671208B1 - Procede de quantification destine a etre utilise dans la compression d'image. - Google Patents

Procede de quantification destine a etre utilise dans la compression d'image.

Info

Publication number
FR2671208B1
FR2671208B1 FR9116392A FR9116392A FR2671208B1 FR 2671208 B1 FR2671208 B1 FR 2671208B1 FR 9116392 A FR9116392 A FR 9116392A FR 9116392 A FR9116392 A FR 9116392A FR 2671208 B1 FR2671208 B1 FR 2671208B1
Authority
FR
France
Prior art keywords
image compression
quantification process
quantification
compression
image
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
FR9116392A
Other languages
English (en)
Other versions
FR2671208A1 (fr
Inventor
James D Allen
Steven M Blonstein
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ricoh Co Ltd
Original Assignee
Ricoh Co Ltd
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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Publication of FR2671208A1 publication Critical patent/FR2671208A1/fr
Application granted granted Critical
Publication of FR2671208B1 publication Critical patent/FR2671208B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Compression Of Band Width Or Redundancy In Fax (AREA)
  • Image Processing (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
FR9116392A 1991-01-02 1991-12-31 Procede de quantification destine a etre utilise dans la compression d'image. Expired - Fee Related FR2671208B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US63583191A 1991-01-02 1991-01-02

Publications (2)

Publication Number Publication Date
FR2671208A1 FR2671208A1 (fr) 1992-07-03
FR2671208B1 true FR2671208B1 (fr) 1993-06-18

Family

ID=24549281

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9116392A Expired - Fee Related FR2671208B1 (fr) 1991-01-02 1991-12-31 Procede de quantification destine a etre utilise dans la compression d'image.

Country Status (4)

Country Link
JP (1) JP3336029B2 (fr)
DE (1) DE4143204C2 (fr)
FR (1) FR2671208B1 (fr)
GB (1) GB2253113B (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5664028A (en) * 1990-04-19 1997-09-02 Ricoh Corporation Apparatus and method for compressing still images
US5594812A (en) * 1990-04-19 1997-01-14 Ricoh Corporation Apparatus and method for compressing still images
JP3155383B2 (ja) * 1992-02-28 2001-04-09 株式会社リコー ２モード処理装置、２次元変換装置及び静止画像データの圧縮システム

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2550820B1 (fr) * 1983-08-18 1987-08-21 Jourdan Charles Dispositif d'echappement pour moteur a combustion interne
DE3608914A1 (de) * 1986-03-18 1987-10-01 Thomson Brandt Gmbh Verfahren zur korrektur
US4922273A (en) * 1987-04-02 1990-05-01 Konica Corporation Compression method of halftone image data
JPH0810935B2 (ja) * 1988-12-09 1996-01-31 富士写真フイルム株式会社 画像信号圧縮符号化装置および伸長再生装置
US5170264A (en) * 1988-12-10 1992-12-08 Fuji Photo Film Co., Ltd. Compression coding device and expansion decoding device for a picture signal
CA2009848C (fr) * 1989-02-14 1995-11-21 Masahiro Fukuda Methode et systeme d'enregistrement et de lecture de donnee codees
FR2644962A1 (fr) * 1989-03-24 1990-09-28 Labo Electronique Physique Dispositif de codage de signaux video numeriques

Also Published As

Publication number Publication date
FR2671208A1 (fr) 1992-07-03
DE4143204C2 (de) 1997-04-03
GB9127136D0 (en) 1992-02-19
DE4143204A1 (de) 1992-07-09
GB2253113A (en) 1992-08-26
GB2253113B (en) 1994-06-15
JP3336029B2 (ja) 2002-10-21
JPH04297185A (ja) 1992-10-21

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Legal Events

Date Code Title Description
ST Notification of lapse

Effective date: 20081020