WO2007095556A8 - Digital image acquisition device with built in dust and sensor mapping capability - Google Patents

Digital image acquisition device with built in dust and sensor mapping capability

Info

Publication number
WO2007095556A8
WO2007095556A8 PCT/US2007/062093 US2007062093W WO2007095556A8 WO 2007095556 A8 WO2007095556 A8 WO 2007095556A8 US 2007062093 W US2007062093 W US 2007062093W WO 2007095556 A8 WO2007095556 A8 WO 2007095556A8
Authority
WO
WIPO (PCT)
Prior art keywords
image acquisition
sensor
digital image
dust
built
Prior art date
Application number
PCT/US2007/062093
Other languages
French (fr)
Other versions
WO2007095556A2 (en
WO2007095556A3 (en
Inventor
Eran Steinberg
Adrian Zamfir
Stefan Petrescu
Original Assignee
Fotonation Vision Ltd
Eran Steinberg
Adrian Zamfir
Stefan Petrescu
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 Fotonation Vision Ltd, Eran Steinberg, Adrian Zamfir, Stefan Petrescu filed Critical Fotonation Vision Ltd
Publication of WO2007095556A2 publication Critical patent/WO2007095556A2/en
Publication of WO2007095556A8 publication Critical patent/WO2007095556A8/en
Publication of WO2007095556A3 publication Critical patent/WO2007095556A3/en

Links

Classifications

    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00Image analysis
    • G06T7/0002Inspection of images, e.g. flaw detection
    • G06T7/0004Industrial image inspection
    • G06T7/0008Industrial image inspection checking presence/absence
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/80Camera processing pipelines; Components thereof
    • H04N23/81Camera processing pipelines; Components thereof for suppressing or minimising disturbance in the image signal generation
    • H04N23/811Camera processing pipelines; Components thereof for suppressing or minimising disturbance in the image signal generation by dust removal, e.g. from surfaces of the image sensor or processing of the image signal output by the electronic image sensor
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N25/00Circuitry of solid-state image sensors [SSIS]; Control thereof
    • H04N25/60Noise processing, e.g. detecting, correcting, reducing or removing noise
    • H04N25/61Noise processing, e.g. detecting, correcting, reducing or removing noise the noise originating only from the lens unit, e.g. flare, shading, vignetting or "cos4"
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N25/00Circuitry of solid-state image sensors [SSIS]; Control thereof
    • H04N25/60Noise processing, e.g. detecting, correcting, reducing or removing noise
    • H04N25/68Noise processing, e.g. detecting, correcting, reducing or removing noise applied to defects
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00Indexing scheme for image analysis or image enhancement
    • G06T2207/10Image acquisition modality
    • G06T2207/10141Special mode during image acquisition
    • G06T2207/10152Varying illumination
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00Indexing scheme for image analysis or image enhancement
    • G06T2207/30Subject of image; Context of image processing
    • G06T2207/30108Industrial image inspection
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N17/00Diagnosis, testing or measuring for television systems or their details
    • H04N17/002Diagnosis, testing or measuring for television systems or their details for television cameras

Abstract

A digital image acquisition device has an image acquisition sensor, a shutter, an aperture and optical elements for focusing an image on the sensor. The device includes a light source located in the body of the device. The light source is periodically activated with one of the aperture or shutter closed, and the device derives a map of defects on the surface of the sensor from a calibration image acquired by the sensor when illuminated by the light source.
PCT/US2007/062093 2006-02-14 2007-02-13 Digital image acquisition device with built in dust and sensor mapping capability WO2007095556A2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US77371406P 2006-02-14 2006-02-14
US60/773,714 2006-02-14
US11/674,650 2007-02-13
US11/674,650 US7702236B2 (en) 2006-02-14 2007-02-13 Digital image acquisition device with built in dust and sensor mapping capability

Publications (3)

Publication Number Publication Date
WO2007095556A2 WO2007095556A2 (en) 2007-08-23
WO2007095556A8 true WO2007095556A8 (en) 2007-12-21
WO2007095556A3 WO2007095556A3 (en) 2008-07-31

Family

ID=38368610

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2007/062093 WO2007095556A2 (en) 2006-02-14 2007-02-13 Digital image acquisition device with built in dust and sensor mapping capability

Country Status (2)

Country Link
US (2) US7702236B2 (en)
WO (1) WO2007095556A2 (en)

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US20100194895A1 (en) 2010-08-05

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