SE9201482L - Metod för kompensering av mörkerström vid CCd-sensor för dentalröntgen - Google Patents

Metod för kompensering av mörkerström vid CCd-sensor för dentalröntgen

Info

Publication number
SE9201482L
SE9201482L SE9201482A SE9201482A SE9201482L SE 9201482 L SE9201482 L SE 9201482L SE 9201482 A SE9201482 A SE 9201482A SE 9201482 A SE9201482 A SE 9201482A SE 9201482 L SE9201482 L SE 9201482L
Authority
SE
Sweden
Prior art keywords
dental
pct
imaging
dark current
date nov
Prior art date
Application number
SE9201482A
Other languages
English (en)
Other versions
SE9201482D0 (sv
Inventor
P Nelvig
Original Assignee
Regam Medical Systems Ab
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 Regam Medical Systems Ab filed Critical Regam Medical Systems Ab
Priority to SE9201482A priority Critical patent/SE9201482L/sv
Publication of SE9201482D0 publication Critical patent/SE9201482D0/sv
Priority to AU40976/93A priority patent/AU669893B2/en
Priority to BR9306338A priority patent/BR9306338A/pt
Priority to US08/331,629 priority patent/US5519437A/en
Priority to CA002134875A priority patent/CA2134875A1/en
Priority to PCT/SE1993/000404 priority patent/WO1993023952A1/en
Priority to JP5520118A priority patent/JPH07506512A/ja
Priority to EP93910512A priority patent/EP0640266A1/en
Publication of SE9201482L publication Critical patent/SE9201482L/sv

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05G—X-RAY TECHNIQUE
    • H05G1/00—X-ray apparatus involving X-ray tubes; Circuits therefor
    • H05G1/08—Electrical details
    • H05G1/60—Circuit arrangements for obtaining a series of X-ray photographs or for X-ray cinematography
    • 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
    • H04N25/63—Noise processing, e.g. detecting, correcting, reducing or removing noise applied to dark current
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/30—Transforming light or analogous information into electric information
    • H04N5/32—Transforming X-rays
SE9201482A 1992-05-11 1992-05-11 Metod för kompensering av mörkerström vid CCd-sensor för dentalröntgen SE9201482L (sv)

Priority Applications (8)

Application Number Priority Date Filing Date Title
SE9201482A SE9201482L (sv) 1992-05-11 1992-05-11 Metod för kompensering av mörkerström vid CCd-sensor för dentalröntgen
AU40976/93A AU669893B2 (en) 1992-05-11 1993-05-07 Method for compensation of dark current of CCD-sensor in dental X-raying
BR9306338A BR9306338A (pt) 1992-05-11 1993-05-07 Método para compensação da corrente escura do sensor ccd em radiografias dentárias
US08/331,629 US5519437A (en) 1992-05-11 1993-05-07 Method for compensation of dark current of CCD-sensor in dental x-raying
CA002134875A CA2134875A1 (en) 1992-05-11 1993-05-07 Method for compensation of dark current of ccd-sensor in dental x-raying
PCT/SE1993/000404 WO1993023952A1 (en) 1992-05-11 1993-05-07 Method for compensation of dark current of ccd-sensor in dental x-raying
JP5520118A JPH07506512A (ja) 1992-05-11 1993-05-07 歯科ｘ線検査におけるｃｃｄセンサーの暗電流の補償方法
EP93910512A EP0640266A1 (en) 1992-05-11 1993-05-07 Method for compensation of dark current of ccd-sensor in dental x-raying

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9201482A SE9201482L (sv) 1992-05-11 1992-05-11 Metod för kompensering av mörkerström vid CCd-sensor för dentalröntgen

Publications (2)

Publication Number Publication Date
SE9201482D0 SE9201482D0 (sv) 1992-05-11
SE9201482L true SE9201482L (sv) 1993-11-12

Family

ID=20386212

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9201482A SE9201482L (sv) 1992-05-11 1992-05-11 Metod för kompensering av mörkerström vid CCd-sensor för dentalröntgen

Country Status (8)

Country Link
US (1) US5519437A (sv)
EP (1) EP0640266A1 (sv)
JP (1) JPH07506512A (sv)
AU (1) AU669893B2 (sv)
BR (1) BR9306338A (sv)
CA (1) CA2134875A1 (sv)
SE (1) SE9201482L (sv)
WO (1) WO1993023952A1 (sv)

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GB2296147B (en) * 1994-11-29 1999-06-16 Marconi Gec Ltd A signal processor
GB9515762D0 (en) * 1995-08-01 1995-10-04 Eev Ltd Imaging apparatus
US5693948A (en) * 1995-11-21 1997-12-02 Loral Fairchild Corporation Advanced CCD-based x-ray image sensor system
DE69731419T2 (de) * 1996-02-26 2005-11-10 Canon K.K. Photoelektrische Umwandlungsvorrichtung und Ansteuermethode dafür
JPH10260487A (ja) * 1997-01-14 1998-09-29 Canon Inc 放射線画像撮影装置
JP2001501071A (ja) * 1997-07-11 2001-01-23 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ 補正システムを含む撮像装置及びｘ線検査装置
DE19734717A1 (de) * 1997-08-11 1999-02-25 Sirona Dental Systems Gmbh Verfahren zur Kompensation des Dunkelstroms bei der Erstellung von zahnärztlichen Panorama- und/oder cephalometrischen Schichtaufnahmen
DE60031787T2 (de) 1999-10-08 2007-02-22 Gendex Corp. Automatische belichtungssteuerung für ein zahnärztliches panorama- und kephalographie-röntgengerät
US6775351B2 (en) 2000-02-02 2004-08-10 Gerardo Rinaldi Automatic X-ray detection for intra-oral dental x-ray imaging apparatus
US6404854B1 (en) 2000-06-26 2002-06-11 Afp Imaging Corporation Dental x-ray imaging system
US6307915B1 (en) 2000-06-26 2001-10-23 Afp Imaging Corporation Triggering of solid state X-ray imagers with non-destructive readout capability
US6462693B1 (en) * 2001-06-06 2002-10-08 Agilent Technologies, Inc. Analog to digital signal conversion method and apparatus
US6429799B1 (en) 2001-07-14 2002-08-06 Agilent Technologies, Inc. Method and apparatus for analog to digital conversion using time-varying reference signal
CA2454634A1 (en) * 2001-07-25 2003-02-06 Giuseppe Rotondo Real-time digital x-ray imaging apparatus
US7064785B2 (en) * 2002-02-07 2006-06-20 Eastman Kodak Company Apparatus and method of correcting for dark current in a solid state image sensor
EP1551302B1 (en) * 2002-07-25 2012-02-08 Gendex Corporation Real-time digital x-ray imaging apparatus and method
US6717540B1 (en) * 2002-10-10 2004-04-06 Agilent Technologies, Inc. Signal preconditioning for analog-to-digital conversion with timestamps
US7113229B2 (en) * 2002-12-17 2006-09-26 Georgia Tech Research Corporation Digital crystal video receiver
DE60318214T2 (de) * 2003-11-21 2008-12-18 Carestream Health, Inc., Rochester Zahnärztliches Röntgengerät
US7813586B2 (en) 2006-08-07 2010-10-12 Mela Sciences, Inc. Reducing noise in digital images
US9097809B2 (en) * 2011-06-30 2015-08-04 Carestream Health, Inc. Radiographic detector including trap occupancy change monitor and feedback, imaging apparatus and methods using the same
US11363938B2 (en) * 2013-03-14 2022-06-21 Ormco Corporation Feedback control mechanism for adjustment of imaging parameters in a dental imaging system
US9407843B2 (en) 2013-10-23 2016-08-02 General Electric Company Detector system and module for compensating dark current
US9927537B2 (en) 2014-12-15 2018-03-27 General Electric Company Systems and methods for positron emission tomography signal isolation
JP6285995B2 (ja) * 2016-08-10 2018-02-28 浜松ホトニクス株式会社 固体撮像装置、放射線撮像システム及び固体撮像装置の制御方法
DE102018209176A1 (de) * 2018-06-08 2019-12-12 MAX-PLANCK-Gesellschaft zur Förderung der Wissenschaften e.V. Verfahren und Vorrichtung zur Rekonstruktion von Zeitreihen, degradiert durch Auslastungsgrade

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4467351A (en) * 1981-11-30 1984-08-21 Yen Wang Minimal radiologic imaging method and apparatus
US4628357A (en) * 1984-02-10 1986-12-09 Elscint, Ltd. Digital fluorographic systems
US4652918A (en) * 1985-03-04 1987-03-24 General Electric Company Compensating circuit
JP2862172B2 (ja) * 1987-12-18 1999-02-24 株式会社東芝 Ｘ線撮影装置
DE8909398U1 (sv) * 1989-08-03 1989-10-05 Siemens Ag, 1000 Berlin Und 8000 Muenchen, De

Also Published As

Publication number Publication date
US5519437A (en) 1996-05-21
CA2134875A1 (en) 1993-11-25
SE9201482D0 (sv) 1992-05-11
EP0640266A1 (en) 1995-03-01
WO1993023952A1 (en) 1993-11-25
AU669893B2 (en) 1996-06-27
BR9306338A (pt) 1998-06-30
JPH07506512A (ja) 1995-07-20
AU4097693A (en) 1993-12-13

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