DE68925841T2 - Verschiebungs-, Verstärkungs- und schlechte Bildelement-Korrektur in elektronischen Abtastmatrizes - Google Patents

Verschiebungs-, Verstärkungs- und schlechte Bildelement-Korrektur in elektronischen Abtastmatrizes

Info

Publication number
DE68925841T2
DE68925841T2 DE68925841T DE68925841T DE68925841T2 DE 68925841 T2 DE68925841 T2 DE 68925841T2 DE 68925841 T DE68925841 T DE 68925841T DE 68925841 T DE68925841 T DE 68925841T DE 68925841 T2 DE68925841 T2 DE 68925841T2
Authority
DE
Germany
Prior art keywords
gain
displacement
picture element
electronic scanning
element correction
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
DE68925841T
Other languages
English (en)
Other versions
DE68925841D1 (de
Inventor
Ying-Wei Lin
Anthony F Calarco
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 DE68925841D1 publication Critical patent/DE68925841D1/de
Application granted granted Critical
Publication of DE68925841T2 publication Critical patent/DE68925841T2/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
    • H04N1/409—Edge or detail enhancement; Noise or error suppression
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
    • H04N25/60—Noise processing, e.g. detecting, correcting, reducing or removing noise
    • H04N25/67—Noise processing, e.g. detecting, correcting, reducing or removing noise applied to fixed-pattern noise, e.g. non-uniformity of response
    • H04N25/671—Noise processing, e.g. detecting, correcting, reducing or removing noise applied to fixed-pattern noise, e.g. non-uniformity of response for non-uniformity detection or correction
    • H04N25/673—Noise processing, e.g. detecting, correcting, reducing or removing noise applied to fixed-pattern noise, e.g. non-uniformity of response for non-uniformity detection or correction by using reference sources
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
    • H04N25/60—Noise processing, e.g. detecting, correcting, reducing or removing noise
    • H04N25/68—Noise processing, e.g. detecting, correcting, reducing or removing noise applied to defects
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
    • H04N25/70—SSIS architectures; Circuits associated therewith
    • H04N25/701—Line sensors

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Facsimile Scanning Arrangements (AREA)
  • Image Input (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Transforming Light Signals Into Electric Signals (AREA)
DE68925841T 1988-07-08 1989-07-07 Verschiebungs-, Verstärkungs- und schlechte Bildelement-Korrektur in elektronischen Abtastmatrizes Expired - Fee Related DE68925841T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/216,475 US4920428A (en) 1988-07-08 1988-07-08 Offset, gain and bad pixel correction in electronic scanning arrays

Publications (2)

Publication Number Publication Date
DE68925841D1 DE68925841D1 (de) 1996-04-11
DE68925841T2 true DE68925841T2 (de) 1996-09-26

Family

ID=22807221

Family Applications (1)

Application Number Title Priority Date Filing Date
DE68925841T Expired - Fee Related DE68925841T2 (de) 1988-07-08 1989-07-07 Verschiebungs-, Verstärkungs- und schlechte Bildelement-Korrektur in elektronischen Abtastmatrizes

Country Status (4)

Country Link
US (1) US4920428A (de)
EP (1) EP0350328B1 (de)
JP (1) JP2761406B2 (de)
DE (1) DE68925841T2 (de)

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Also Published As

Publication number Publication date
JP2761406B2 (ja) 1998-06-04
EP0350328A2 (de) 1990-01-10
EP0350328B1 (de) 1996-03-06
US4920428A (en) 1990-04-24
EP0350328A3 (de) 1991-10-09
JPH0254683A (ja) 1990-02-23
DE68925841D1 (de) 1996-04-11

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Legal Events

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8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee