DE69329256T2 - Kompensation von Nachleuchtzeit aus den vorhergehenden Computertomographieabtastungen - Google Patents

Kompensation von Nachleuchtzeit aus den vorhergehenden Computertomographieabtastungen

Info

Publication number
DE69329256T2
DE69329256T2 DE69329256T DE69329256T DE69329256T2 DE 69329256 T2 DE69329256 T2 DE 69329256T2 DE 69329256 T DE69329256 T DE 69329256T DE 69329256 T DE69329256 T DE 69329256T DE 69329256 T2 DE69329256 T2 DE 69329256T2
Authority
DE
Germany
Prior art keywords
compensation
computed tomography
afterglow time
tomography scans
previous computed
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
DE69329256T
Other languages
English (en)
Other versions
DE69329256D1 (de
Inventor
Jiang Hsieh
Robert Franklin Senzig
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.)
General Electric Co
Original Assignee
General Electric 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 General Electric Co filed Critical General Electric Co
Application granted granted Critical
Publication of DE69329256D1 publication Critical patent/DE69329256D1/de
Publication of DE69329256T2 publication Critical patent/DE69329256T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T11/00—2D [Two Dimensional] image generation
    • G06T11/003—Reconstruction from projections, e.g. tomography
    • G06T11/005—Specific pre-processing for tomographic reconstruction, e.g. calibration, source positioning, rebinning, scatter correction, retrospective gating
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/02—Arrangements for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
    • A61B6/027—Arrangements for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis characterised by the use of a particular data acquisition trajectory, e.g. helical or spiral
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S378/00—X-ray or gamma ray systems or devices
    • Y10S378/901—Computer tomography program or processor

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Image Input (AREA)
  • Image Processing (AREA)
  • Transforming Light Signals Into Electric Signals (AREA)
  • Closed-Circuit Television Systems (AREA)
DE69329256T 1992-03-30 1993-03-26 Kompensation von Nachleuchtzeit aus den vorhergehenden Computertomographieabtastungen Expired - Fee Related DE69329256T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/860,659 US5359638A (en) 1992-03-30 1992-03-30 Method for recursive filtering residual afterglow from previous computed tomography scans

Publications (2)

Publication Number Publication Date
DE69329256D1 DE69329256D1 (de) 2000-09-28
DE69329256T2 true DE69329256T2 (de) 2001-03-29

Family

ID=25333726

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69329256T Expired - Fee Related DE69329256T2 (de) 1992-03-30 1993-03-26 Kompensation von Nachleuchtzeit aus den vorhergehenden Computertomographieabtastungen

Country Status (4)

Country Link
US (1) US5359638A (de)
EP (1) EP0564182B1 (de)
JP (1) JP3426279B2 (de)
DE (1) DE69329256T2 (de)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
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US5473654A (en) * 1994-06-24 1995-12-05 General Electric Company Backprojection for x-ray CT system
WO1997050041A1 (en) * 1996-06-27 1997-12-31 Analogic Corporation Multi-processor afterglow artifact correction filter for use with computed tomography scanners
US5761267A (en) * 1996-12-26 1998-06-02 General Electric Company Methods and apparatus for simplified filtering of scan data in an imaging system
DE69936769T2 (de) 1998-12-30 2008-04-30 General Electric Co. Bilddickeselektion für mehrschichtbildgerät
US6701000B1 (en) * 1999-04-30 2004-03-02 General Electric Company Solution to detector lag problem in a solid state detector
US6295331B1 (en) * 1999-07-12 2001-09-25 General Electric Company Methods and apparatus for noise compensation in imaging systems
US6493646B1 (en) * 2000-02-16 2002-12-10 Ge Medical Systems Global Technology Company, Llc High order primary decay correction for CT imaging system detectors
JP2003061945A (ja) * 2001-08-30 2003-03-04 Hitachi Medical Corp Ｘ線ｃｔ装置
DE10201321B4 (de) * 2002-01-15 2011-02-24 Siemens Ag Computertomographie-Gerät und Verfahren mit aktiver Anpassung der Mess-Elektronik
JP3870105B2 (ja) * 2002-02-22 2007-01-17 ジーイー・メディカル・システムズ・グローバル・テクノロジー・カンパニー・エルエルシー 逆投影方法およびｘ線ｃｔ装置
JP4464612B2 (ja) * 2003-02-12 2010-05-19 株式会社島津製作所 放射線撮像装置
FR2851359B1 (fr) * 2003-02-14 2005-05-06 Ge Med Sys Global Tech Co Llc Procede et dispositif de calibration et de correction de niveaux de gris
JP4411891B2 (ja) * 2003-07-09 2010-02-10 株式会社島津製作所 放射線撮像装置および放射線検出信号処理方法
JP4483223B2 (ja) * 2003-08-08 2010-06-16 株式会社島津製作所 放射線撮像装置および放射線検出信号処理方法
JP4415635B2 (ja) * 2003-10-08 2010-02-17 株式会社島津製作所 放射線撮像装置
JP4400249B2 (ja) * 2004-02-25 2010-01-20 株式会社島津製作所 放射線断層撮影装置
CN100477965C (zh) * 2004-04-23 2009-04-15 株式会社日立医药 X射线ct装置
US7668361B2 (en) * 2004-07-07 2010-02-23 Koninklijke Philips Electronics N.V. System and method for the correction of temporal artifacts in tomographic images
US7215732B2 (en) * 2004-09-30 2007-05-08 General Electric Company Method and system for CT reconstruction with pre-correction
CN101166468B (zh) * 2005-08-31 2010-07-14 株式会社岛津制作所 放射线摄像装置和放射线检测信号处理方法
JP5405093B2 (ja) * 2008-12-05 2014-02-05 富士フイルム株式会社 画像処理装置及び画像処理方法
US8611627B2 (en) 2009-12-23 2013-12-17 General Electric Company CT spectral calibration
CN102419866B (zh) * 2010-09-27 2013-08-21 北京农业智能装备技术研究中心 用于ct图像断层重建的滤波函数建立方法及断层重建方法
DE102013223061A1 (de) * 2013-11-13 2014-09-04 Carl Zeiss Smt Gmbh Verfahren und Vorrichtung zum Ermitteln eines jeweiligen intrinsischen Parameters von Pixeln eines Sensors einer Mikrobolometerkamera
JP6486100B2 (ja) * 2014-12-22 2019-03-20 キヤノン株式会社 画像処理装置、画像処理方法、およびプログラム
JP7242255B2 (ja) * 2018-11-05 2023-03-20 キヤノンメディカルシステムズ株式会社 Ｘ線ｃｔ装置および検出器ユニット

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4233662A (en) * 1973-04-25 1980-11-11 Emi Limited Radiography
US4112303A (en) * 1977-02-25 1978-09-05 General Electric Company Gantry for computed tomography
US4115695A (en) * 1977-02-25 1978-09-19 General Electric Company Gantry for computed tomography
US4494141A (en) * 1982-09-30 1985-01-15 General Electric Company Dual purpose array processor for a CT scanner
US4583240A (en) * 1983-08-15 1986-04-15 General Electric Company Data acquisition circuitry for use in computerized tomography system
US4707607A (en) * 1986-03-14 1987-11-17 General Electric Company High resolution x-ray detector
US5265013A (en) * 1990-11-19 1993-11-23 General Electric Company Compensation of computed tomography data for X-ray detector afterglow artifacts
US5249123A (en) * 1991-11-25 1993-09-28 General Electric Company Compensation of computed tomography data for detector afterglow

Also Published As

Publication number Publication date
US5359638A (en) 1994-10-25
JPH0690945A (ja) 1994-04-05
JP3426279B2 (ja) 2003-07-14
DE69329256D1 (de) 2000-09-28
EP0564182B1 (de) 2000-08-23
EP0564182A3 (en) 1995-06-21
EP0564182A2 (de) 1993-10-06

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8320 Willingness to grant licences declared (paragraph 23)
8328 Change in the person/name/address of the agent

Representative=s name: ROEGER UND KOLLEGEN, 73728 ESSLINGEN

8339 Ceased/non-payment of the annual fee