IT1160380B - Apparecchiatura di scansione dell'immagine - Google Patents

Apparecchiatura di scansione dell'immagine

Info

Publication number
IT1160380B
IT1160380B IT31085/78A IT3108578A IT1160380B IT 1160380 B IT1160380 B IT 1160380B IT 31085/78 A IT31085/78 A IT 31085/78A IT 3108578 A IT3108578 A IT 3108578A IT 1160380 B IT1160380 B IT 1160380B
Authority
IT
Italy
Prior art keywords
image scanning
scanning equipment
equipment
image
scanning
Prior art date
Application number
IT31085/78A
Other languages
English (en)
Other versions
IT7831085A0 (it
Original Assignee
Ibm
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 Ibm filed Critical Ibm
Publication of IT7831085A0 publication Critical patent/IT7831085A0/it
Application granted granted Critical
Publication of IT1160380B publication Critical patent/IT1160380B/it

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
    • H04N1/403—Discrimination between the two tones in the picture signal of a two-tone original
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V10/00—Arrangements for image or video recognition or understanding
    • G06V10/10—Image acquisition
    • G06V10/12—Details of acquisition arrangements; Constructional details thereof
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V10/00—Arrangements for image or video recognition or understanding
    • G06V10/20—Image preprocessing
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V10/00—Arrangements for image or video recognition or understanding
    • G06V10/20—Image preprocessing
    • G06V10/28—Quantising the image, e.g. histogram thresholding for discrimination between background and foreground patterns
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V10/00—Arrangements for image or video recognition or understanding
    • G06V10/88—Image or video recognition using optical means, e.g. reference filters, holographic masks, frequency domain filters or spatial domain filters

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Signal Processing (AREA)
  • Facsimile Scanning Arrangements (AREA)
  • Light Receiving Elements (AREA)
  • Image Input (AREA)
IT31085/78A 1977-12-30 1978-12-21 Apparecchiatura di scansione dell'immagine IT1160380B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/866,192 US4173772A (en) 1977-12-30 1977-12-30 Solid state image scanning system for producing a binary output

Publications (2)

Publication Number Publication Date
IT7831085A0 IT7831085A0 (it) 1978-12-21
IT1160380B true IT1160380B (it) 1987-03-11

Family

ID=25347113

Family Applications (1)

Application Number Title Priority Date Filing Date
IT31085/78A IT1160380B (it) 1977-12-30 1978-12-21 Apparecchiatura di scansione dell'immagine

Country Status (6)

Country Link
US (1) US4173772A (it)
JP (1) JPS5935066B2 (it)
DE (1) DE2853712A1 (it)
FR (1) FR2413725A1 (it)
GB (1) GB2011755B (it)
IT (1) IT1160380B (it)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54130825A (en) * 1978-03-31 1979-10-11 Canon Inc Image scanner
JPS54153513A (en) * 1978-05-25 1979-12-03 Ricoh Co Ltd Video information reader
DE3068810D1 (en) * 1979-10-12 1984-09-06 Xerox Corp Apparatus and method for compensating a raster scanner for component deficiencies
US4696533A (en) * 1981-01-12 1987-09-29 Massachusetts Institute Of Technology Spatial light modulator
US4865427A (en) * 1981-01-12 1989-09-12 Massachusetts Institute Of Technology Spatial light modulator
US4447830A (en) * 1981-09-10 1984-05-08 Xerox Corporation Image scanning apparatus and method
US4490036A (en) * 1982-08-18 1984-12-25 Eastman Kodak Company Image sensor and rangefinder device having background subtraction with paired analog shift registers
JPS59186481A (ja) * 1983-04-08 1984-10-23 Citizen Watch Co Ltd 撮像装置
US4602291A (en) * 1984-05-09 1986-07-22 Xerox Corporation Pixel non-uniformity correction system
JPS6393262A (ja) * 1986-10-07 1988-04-23 Canon Inc 画像処理装置
US5459319A (en) * 1988-02-23 1995-10-17 The Boeing Company Radiation detector circuit having a 1-bit quantized output
US5008758A (en) * 1989-05-24 1991-04-16 Massachusetts Institute Of Technology Suppressing dark current in charge-coupled devices
JPH04100384A (ja) * 1990-08-17 1992-04-02 Mitsubishi Electric Corp Ｔ・ｄ・ｉ動作固体撮像装置
FR2673794B1 (fr) * 1991-03-06 1997-03-28 Telecommunications Sa Dispositif de correction de defauts pour systemes d'imagerie.
US5400161A (en) * 1993-10-04 1995-03-21 Raytheon Company Optical system including focus-defocus focal plane array compensation technique using liquid crystal phased array
EP0729270B1 (en) * 1995-02-24 2002-12-18 Eastman Kodak Company Black pattern correction for a charge transfer sensor
US5710829A (en) * 1995-04-27 1998-01-20 Lucent Technologies Inc. System and method for focused-based image segmentation for video signals
US6584235B1 (en) * 1998-04-23 2003-06-24 Micron Technology, Inc. Wide dynamic range fusion using memory look-up
US7581852B2 (en) * 1999-11-15 2009-09-01 Xenonics, Inc. Portable device for viewing and imaging
GB0104206D0 (en) * 2001-02-21 2001-04-11 Secr Defence Radiometers
US7499588B2 (en) 2004-05-20 2009-03-03 Microsoft Corporation Low resolution OCR for camera acquired documents
JP4315184B2 (ja) * 2006-10-31 2009-08-19 ブラザー工業株式会社 画像読取装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2691696A (en) * 1950-10-27 1954-10-12 Eastman Kodak Co Electrooptical unsharp masking in color reproduction
GB1125749A (en) * 1966-07-14 1968-08-28 Crosfield Electronics Ltd Improvements relating to scanners for image reproduction systems
US4065788A (en) * 1976-02-09 1977-12-27 Mcdonnell Douglas Corporation Realtime image processor

Also Published As

Publication number Publication date
GB2011755A (en) 1979-07-11
GB2011755B (en) 1982-06-16
FR2413725A1 (fr) 1979-07-27
JPS5935066B2 (ja) 1984-08-27
US4173772A (en) 1979-11-06
DE2853712A1 (de) 1979-07-12
IT7831085A0 (it) 1978-12-21
JPS5494837A (en) 1979-07-26

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