TW376637B - Dust and scratch correction for a film scanner - Google Patents

Dust and scratch correction for a film scanner

Info

Publication number
TW376637B
TW376637B TW087109877A TW87109877A TW376637B TW 376637 B TW376637 B TW 376637B TW 087109877 A TW087109877 A TW 087109877A TW 87109877 A TW87109877 A TW 87109877A TW 376637 B TW376637 B TW 376637B
Authority
TW
Taiwan
Prior art keywords
medium
optical path
image
artifacts
point
Prior art date
Application number
TW087109877A
Other languages
English (en)
Chinese (zh)
Inventor
Donald J Stavely
Daniel M Bloom
Amy E Battles
Dav Id K Campbell
E Oscar R Herrera
Original Assignee
Hewlett Packard 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 Hewlett Packard Co filed Critical Hewlett Packard Co
Application granted granted Critical
Publication of TW376637B publication Critical patent/TW376637B/zh

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/88—Investigating the presence of flaws or contamination
    • G01N21/8806—Specially adapted optical and illumination features
    • 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
    • H04N1/024—Details of scanning heads ; Means for illuminating the original
    • H04N1/028—Details of scanning heads ; Means for illuminating the original for picture information pick-up
    • H04N1/02815—Means for illuminating the original, not specific to a particular type of pick-up head
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/88—Investigating the presence of flaws or contamination
    • G01N21/89—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles
    • G01N21/892—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles characterised by the flaw, defect or object feature examined
    • G01N21/896—Optical defects in or on transparent materials, e.g. distortion, surface flaws in conveyed flat sheet or rod
    • 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
    • H04N1/00002—Diagnosis, testing or measuring; Detecting, analysing or monitoring not otherwise provided for
    • H04N1/00007—Diagnosis, testing or measuring; Detecting, analysing or monitoring not otherwise provided for relating to particular apparatus or devices
    • H04N1/00023—Colour systems
    • 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
    • H04N1/00002—Diagnosis, testing or measuring; Detecting, analysing or monitoring not otherwise provided for
    • H04N1/00026—Methods therefor
    • H04N1/00037—Detecting, i.e. determining the occurrence of a predetermined state

Landscapes

  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Pathology (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Immunology (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Image Input (AREA)
  • Facsimile Scanning Arrangements (AREA)
TW087109877A 1997-10-14 1998-06-19 Dust and scratch correction for a film scanner TW376637B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/949,507 US5969372A (en) 1997-10-14 1997-10-14 Film scanner with dust and scratch correction by use of dark-field illumination

Publications (1)

Publication Number Publication Date
TW376637B true TW376637B (en) 1999-12-11

Family

ID=25489185

Family Applications (1)

Application Number Title Priority Date Filing Date
TW087109877A TW376637B (en) 1997-10-14 1998-06-19 Dust and scratch correction for a film scanner

Country Status (4)

Country Link
US (1) US5969372A (enExample)
JP (1) JP4183807B2 (enExample)
KR (1) KR19990037083A (enExample)
TW (1) TW376637B (enExample)

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Also Published As

Publication number Publication date
JP4183807B2 (ja) 2008-11-19
US5969372A (en) 1999-10-19
JPH11185028A (ja) 1999-07-09
KR19990037083A (ko) 1999-05-25

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MM4A Annulment or lapse of patent due to non-payment of fees