FR2213590A1 - - Google Patents

Info

Publication number
FR2213590A1
FR2213590A1 FR7341690A FR7341690A FR2213590A1 FR 2213590 A1 FR2213590 A1 FR 2213590A1 FR 7341690 A FR7341690 A FR 7341690A FR 7341690 A FR7341690 A FR 7341690A FR 2213590 A1 FR2213590 A1 FR 2213590A1
Authority
FR
France
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.)
Granted
Application number
FR7341690A
Other languages
French (fr)
Other versions
FR2213590B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html
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.)
International Business Machines Corp
Original Assignee
International Business Machines 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
Priority claimed from US00316337A external-priority patent/US3800079A/en
Application filed by International Business Machines Corp filed Critical International Business Machines Corp
Publication of FR2213590A1 publication Critical patent/FR2213590A1/fr
Application granted granted Critical
Publication of FR2213590B1 publication Critical patent/FR2213590B1/fr
Expired 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
    • H04N1/401—Compensating positionally unequal response of the pick-up or reproducing head
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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

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)
  • Transforming Light Signals Into Electric Signals (AREA)
FR7341690A 1972-12-18 1973-11-14 Expired FR2213590B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00316337A US3800079A (en) 1972-12-18 1972-12-18 Compensation for a scanning system

Publications (2)

Publication Number Publication Date
FR2213590A1 true FR2213590A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1974-08-02
FR2213590B1 FR2213590B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1977-09-23

Family

ID=23228625

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7341690A Expired FR2213590B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1972-12-18 1973-11-14

Country Status (3)

Country Link
DE (1) DE2353299A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FR (1) FR2213590B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB1430614A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5660165A (en) * 1979-10-20 1981-05-23 Canon Inc Picture reader
US4524388A (en) * 1981-08-11 1985-06-18 Konishiroku Photo Industry Co., Ltd. Shading correction device
US4675533A (en) * 1982-07-22 1987-06-23 Canon Kabushiki Kaisha Image reading apparatus with image data overlap removal
GB2126829B (en) * 1982-09-09 1986-12-10 Link Electronics Ltd Image correction
DE3448555C2 (de) * 1983-03-06 2001-08-09 Canon Kk Farbbildlesegerät
JPS6054571A (ja) * 1983-09-05 1985-03-29 Fuji Photo Film Co Ltd 画像走査読取装置
US4691241A (en) * 1983-12-06 1987-09-01 Dainippon Screen Mfg. Co., Ltd. Method and system for compensating for a shading phenomenon
US4602291A (en) * 1984-05-09 1986-07-22 Xerox Corporation Pixel non-uniformity correction system
US4767927A (en) * 1984-08-16 1988-08-30 Kabushiki Kaisha Toshiba Apparatus for reading radiation image information stored in imaging plate
US4731661A (en) * 1984-11-16 1988-03-15 Sharp Kabushiki Kaisha Color document reader with white balance adjuster for determining light emission periods for a plurality of different-colored light sources and corresponding integration times for a light sensor by reading a white reference area
JPS62293384A (ja) * 1986-06-11 1987-12-19 Toshiba Corp 画像入力装置
TW339494B (en) * 1996-08-12 1998-09-01 Alps Electric Co Ltd Image reader and the shade correction method

Also Published As

Publication number Publication date
DE2353299A1 (de) 1974-06-27
GB1430614A (en) 1976-03-31
FR2213590B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1977-09-23

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Legal Events

Date Code Title Description
ST Notification of lapse