DE69122855T2 - Vorrichtung zur dynamischen stufenwertdiskretisierung - Google Patents

Vorrichtung zur dynamischen stufenwertdiskretisierung

Info

Publication number
DE69122855T2
DE69122855T2 DE69122855T DE69122855T DE69122855T2 DE 69122855 T2 DE69122855 T2 DE 69122855T2 DE 69122855 T DE69122855 T DE 69122855T DE 69122855 T DE69122855 T DE 69122855T DE 69122855 T2 DE69122855 T2 DE 69122855T2
Authority
DE
Germany
Prior art keywords
dynamic level
level discrimination
discrimination
dynamic
level
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
DE69122855T
Other languages
English (en)
Other versions
DE69122855D1 (de
Inventor
Yusheng Tsai
Lawrence Bernstein
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.)
Eastman Kodak Co
Original Assignee
Eastman Kodak Co
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 Eastman Kodak Co filed Critical Eastman Kodak Co
Application granted granted Critical
Publication of DE69122855D1 publication Critical patent/DE69122855D1/de
Publication of DE69122855T2 publication Critical patent/DE69122855T2/de
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
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/40—Picture signal circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Picture Signal Circuits (AREA)
  • Analogue/Digital Conversion (AREA)
DE69122855T 1990-12-17 1991-12-13 Vorrichtung zur dynamischen stufenwertdiskretisierung Expired - Fee Related DE69122855T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/628,827 US5101452A (en) 1990-12-17 1990-12-17 Apparatus and method for dynamic step quantization
PCT/US1991/009508 WO1992011728A1 (en) 1990-12-17 1991-12-13 Apparatus and method for dynamic step quantization

Publications (2)

Publication Number Publication Date
DE69122855D1 DE69122855D1 (de) 1996-11-28
DE69122855T2 true DE69122855T2 (de) 1997-05-22

Family

ID=24520471

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69122855T Expired - Fee Related DE69122855T2 (de) 1990-12-17 1991-12-13 Vorrichtung zur dynamischen stufenwertdiskretisierung

Country Status (5)

Country Link
US (1) US5101452A (de)
EP (1) EP0515672B1 (de)
JP (1) JPH05505294A (de)
DE (1) DE69122855T2 (de)
WO (1) WO1992011728A1 (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69324513T2 (de) * 1992-02-11 1999-10-21 Eastman Kodak Co System zur Bildherstellung und zugeordnetes Verfahren zur Minimierung von Konturen für ein quantisiertes Digitalfarbbild
JP3428063B2 (ja) * 1993-04-16 2003-07-22 富士写真フイルム株式会社 画像データの階調変換方法および装置
US5849027A (en) 1996-09-04 1998-12-15 Mbg Technologies, Inc. Photodynamic therapy method and apparatus
JP2002520917A (ja) * 1998-07-01 2002-07-09 イクエーター テクノロジーズ インコーポレイテッド 画素値を変更するための画像処理回路及び方法
US6647152B2 (en) 2002-01-25 2003-11-11 Thomson Licensing S.A. Method and system for contouring reduction
US7349126B2 (en) * 2003-03-13 2008-03-25 Eastman Kodak Company System with a random number generator used to remove contouring in CMOS imager data having an extended dynamic range
US8396119B1 (en) 2009-09-30 2013-03-12 Ambarella, Inc. Data sample compression and decompression using randomized quantization bins

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1218015A (en) * 1967-03-13 1971-01-06 Nat Res Dev Improvements in or relating to systems for transmitting television signals
US4611342A (en) * 1983-03-01 1986-09-09 Racal Data Communications Inc. Digital voice compression having a digitally controlled AGC circuit and means for including the true gain in the compressed data
US4853969A (en) * 1987-01-13 1989-08-01 Recognition Equipment Incorporated Quantized digital filter
US5123059A (en) * 1987-09-28 1992-06-16 Dainippon Screen Mfg. Co., Ltd. Gradation converting circuit employing lookup table
JPH02196565A (ja) * 1989-01-25 1990-08-03 Eastman Kodatsuku Japan Kk 画像二値化方式

Also Published As

Publication number Publication date
WO1992011728A1 (en) 1992-07-09
JPH05505294A (ja) 1993-08-05
DE69122855D1 (de) 1996-11-28
EP0515672B1 (de) 1996-10-23
EP0515672A1 (de) 1992-12-02
US5101452A (en) 1992-03-31

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee