DE69631636D1 - Verfahren zur perspektivischen Projektionsumsetzung - Google Patents

Verfahren zur perspektivischen Projektionsumsetzung

Info

Publication number
DE69631636D1
DE69631636D1 DE69631636T DE69631636T DE69631636D1 DE 69631636 D1 DE69631636 D1 DE 69631636D1 DE 69631636 T DE69631636 T DE 69631636T DE 69631636 T DE69631636 T DE 69631636T DE 69631636 D1 DE69631636 D1 DE 69631636D1
Authority
DE
Germany
Prior art keywords
conversion method
perspective projection
projection conversion
perspective
projection
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
DE69631636T
Other languages
English (en)
Other versions
DE69631636T2 (de
Inventor
Thomas I Yeh
Francis K Tse
George W Lahue
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.)
Xerox Corp
Original Assignee
Xerox Corp
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 Xerox Corp filed Critical Xerox Corp
Publication of DE69631636D1 publication Critical patent/DE69631636D1/de
Application granted granted Critical
Publication of DE69631636T2 publication Critical patent/DE69631636T2/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
    • H04N1/40075—Descreening, i.e. converting a halftone signal into a corresponding continuous-tone signal; Rescreening, i.e. combined descreening and halftoning

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Image Processing (AREA)
  • Editing Of Facsimile Originals (AREA)
  • Facsimile Image Signal Circuits (AREA)
DE69631636T 1995-11-15 1996-11-14 Verfahren zur perspektivischen Projektionsumsetzung Expired - Fee Related DE69631636T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US558311 1995-11-15
US08/558,311 US5742708A (en) 1995-11-15 1995-11-15 Method and system for performing perspective projection conversion

Publications (2)

Publication Number Publication Date
DE69631636D1 true DE69631636D1 (de) 2004-04-01
DE69631636T2 DE69631636T2 (de) 2004-08-05

Family

ID=24229056

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69631636T Expired - Fee Related DE69631636T2 (de) 1995-11-15 1996-11-14 Verfahren zur perspektivischen Projektionsumsetzung

Country Status (4)

Country Link
US (1) US5742708A (de)
EP (1) EP0774855B1 (de)
JP (1) JPH09186856A (de)
DE (1) DE69631636T2 (de)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6542260B1 (en) * 1997-01-13 2003-04-01 Hewlett-Packard Company Multiple image scanner
KR100448939B1 (ko) * 1997-08-27 2004-11-20 삼성전자주식회사 액정 표시 장치용 해상도 변환 회로
US6101293A (en) * 1997-10-20 2000-08-08 Moore U.S.A., Inc. Digital special pantograph
US6683702B1 (en) 1999-07-07 2004-01-27 Xerox Corporation Compact-dot reproduction of scanned halftone screens
US6771392B1 (en) 1999-09-24 2004-08-03 Xerox Corporation High resolution image mapping for simulating high resolution printing using high addressability without affecting halftone rendering
US6704462B1 (en) * 2000-07-31 2004-03-09 Hewlett-Packard Development Company, L.P. Scaling control for image scanners
US20020163654A1 (en) * 2001-03-23 2002-11-07 Oak Technology, Inc. System and method of simulated increase in image resolution
US7872775B2 (en) 2002-05-24 2011-01-18 Lexmark International, Inc. Apparatus and method for a resolution quality redefinition control system for a multi-function device
US7206154B2 (en) * 2002-09-25 2007-04-17 Hitachi Global Storage Technologies Netherlands, B.V. Method and apparatus for balanced shield shunts, leads and pads for electrical noise reduction in read heads
US7218417B2 (en) 2003-01-30 2007-05-15 Xerox Corporation Resolution conversion using a morphological partial pixel mapping (MPPM) approach
EP1583031A1 (de) * 2004-03-30 2005-10-05 Dialog Semiconductor GmbH Zoomalgorithmus
JP2007286767A (ja) * 2006-04-13 2007-11-01 Canon Inc 画像検索システム、及び、画像検索サーバ及びその制御方法、並びに、コンピュータプログラム及びコンピュータ可読記憶媒体
JP4947351B2 (ja) * 2006-07-28 2012-06-06 富士ゼロックス株式会社 画像処理装置、及び、プログラム
JP4549418B2 (ja) * 2008-03-04 2010-09-22 シャープ株式会社 画像処理装置、画像処理方法、画像形成装置、並びに、プログラム、記録媒体

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5029107A (en) * 1989-03-31 1991-07-02 International Business Corporation Apparatus and accompanying method for converting a bit mapped monochromatic image to a grey scale image using table look up operations
US5258854A (en) * 1991-12-06 1993-11-02 Xerox Corporation Converting between write-white, write-black and neutral bitmaps
US5363213A (en) * 1992-06-08 1994-11-08 Xerox Corporation Unquantized resolution conversion of bitmap images using error diffusion
US5455681A (en) * 1992-11-16 1995-10-03 Eastman Kodak Company Low resolution grey level printing method from high resolution binary input file
US5301037A (en) * 1992-11-25 1994-04-05 Xerox Corporation Resolution conversion with simulated multi-bit gray
CA2132248C (en) * 1993-11-01 1999-09-21 Ying-Wei Lin Apparatus and method for arbitrary binary resolution conversion
US5387985A (en) * 1993-12-17 1995-02-07 Xerox Corporation Non-integer image resolution conversion using statistically generated look-up tables
US5608821A (en) * 1994-08-03 1997-03-04 Xerox Corporation Method of high addressability error diffusion
US5604608A (en) * 1995-09-28 1997-02-18 Xerox Corporation Device and method for controlling the scan speed of an image input terminal to match the throughput constraints of an image processing module

Also Published As

Publication number Publication date
EP0774855B1 (de) 2004-02-25
EP0774855A2 (de) 1997-05-21
US5742708A (en) 1998-04-21
JPH09186856A (ja) 1997-07-15
DE69631636T2 (de) 2004-08-05
EP0774855A3 (de) 1998-07-29

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Legal Events

Date Code Title Description
8320 Willingness to grant licences declared (paragraph 23)
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee