JP2001054518A - イメージング・システムにおいてノイズを補償するための方法および装置 - Google Patents

イメージング・システムにおいてノイズを補償するための方法および装置

Info

Publication number
JP2001054518A
JP2001054518A JP2000207618A JP2000207618A JP2001054518A JP 2001054518 A JP2001054518 A JP 2001054518A JP 2000207618 A JP2000207618 A JP 2000207618A JP 2000207618 A JP2000207618 A JP 2000207618A JP 2001054518 A JP2001054518 A JP 2001054518A
Authority
JP
Japan
Prior art keywords
data
channel
detector
dependent
smoothing
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.)
Withdrawn
Application number
JP2000207618A
Other languages
English (en)
Japanese (ja)
Other versions
JP2001054518A5 (https=
Inventor
Jiang Hsieh
ジャン・ヘシエー
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
Publication of JP2001054518A publication Critical patent/JP2001054518A/ja
Publication of JP2001054518A5 publication Critical patent/JP2001054518A5/ja
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T12/00—Tomographic reconstruction from projections
    • G06T12/10—Image preprocessing, e.g. calibration, positioning of sources or scatter correction

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
JP2000207618A 1999-07-12 2000-07-10 イメージング・システムにおいてノイズを補償するための方法および装置 Withdrawn JP2001054518A (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/351,757 US6295331B1 (en) 1999-07-12 1999-07-12 Methods and apparatus for noise compensation in imaging systems
US09/351757 1999-07-12

Publications (2)

Publication Number Publication Date
JP2001054518A true JP2001054518A (ja) 2001-02-27
JP2001054518A5 JP2001054518A5 (https=) 2007-08-16

Family

ID=23382246

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2000207618A Withdrawn JP2001054518A (ja) 1999-07-12 2000-07-10 イメージング・システムにおいてノイズを補償するための方法および装置

Country Status (5)

Country Link
US (1) US6295331B1 (https=)
EP (1) EP1071044B1 (https=)
JP (1) JP2001054518A (https=)
DE (1) DE60038077T2 (https=)
IL (1) IL137107A (https=)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003225230A (ja) * 2001-11-29 2003-08-12 Toshiba Corp コンピュータ断層撮影装置
JP2005279282A (ja) * 2004-03-30 2005-10-13 Toshiba Corp 風車アーチファクト削減用の半径内画像依存検出器列フィルタリング方法、ｘ線ｃｔ装置及びプログラム
JP2008505678A (ja) * 2004-07-07 2008-02-28 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 断層撮影画像における時間的アーチファクトの訂正のためのシステム及び方法

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1250776A1 (en) * 1999-10-29 2002-10-23 Forskarpatent i Västsverige AB Method and arrangements for congestion control in packet networks using thresholds and demoting of packet flows
DE19957083B4 (de) * 1999-11-28 2004-11-18 Siemens Ag Verfahren zur Untersuchung eines eine periodische Bewegung ausführenden Körperbereichs
US6366638B1 (en) * 2001-03-16 2002-04-02 Ge Medical Systems Global Technology Company, Llc Methods and apparatus for CT scout image processing
US6535572B2 (en) * 2001-06-15 2003-03-18 Ge Medical Systems Global Technology Company, Llc Methods and apparatus for compensating computed tomographic channel ganging artifacts
JP2003061945A (ja) * 2001-08-30 2003-03-04 Hitachi Medical Corp Ｘ線ｃｔ装置
US6687327B2 (en) 2001-11-15 2004-02-03 Ge Medical Systems Global Technology Co., Llc System and method of medical imaging having task and/or patient size dependent processing
US6885764B2 (en) * 2001-11-21 2005-04-26 Ge Medical Systems Global Technology Company, Llc High Speed Z-smoothing method and apparatus for CT imaging system
US6922457B2 (en) * 2001-11-29 2005-07-26 Kabushiki Kaisha Toshiba Computer tomography apparatus
US7356115B2 (en) 2002-12-04 2008-04-08 Varian Medical Systems Technology, Inc. Radiation scanning units including a movable platform
US6979826B2 (en) * 2002-07-29 2005-12-27 Ge Medical Systems Global Technology Company Llc Scintillator geometry for enhanced radiation detection and reduced error sensitivity
US7672426B2 (en) * 2002-12-04 2010-03-02 Varian Medical Systems, Inc. Radiation scanning units with reduced detector requirements
DE10258662A1 (de) * 2002-12-13 2004-07-08 Forschungszentrum Jülich GmbH Verfahren und Vorrichtung zur digitalen Bildverarbeitung von CMOS-Kamerabildern
US20040184643A1 (en) * 2003-03-21 2004-09-23 Stantchev Gueorgui H. Methods and apparatus for imaging
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
US20050084147A1 (en) * 2003-10-20 2005-04-21 Groszmann Daniel E. Method and apparatus for image reconstruction with projection images acquired in a non-circular arc
US20050201605A1 (en) * 2004-03-11 2005-09-15 Jianying Li Methods and apparatus for CT smoothing to reduce artifacts
US7660481B2 (en) * 2005-11-17 2010-02-09 Vital Images, Inc. Image enhancement using anisotropic noise filtering
JP5579639B2 (ja) * 2011-02-26 2014-08-27 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 画像処理装置およびプログラム並びに画像診断装置
EP3055717A1 (en) * 2013-10-11 2016-08-17 Analogic Corporation Tomosynthesis imaging
DE102016218955B4 (de) * 2016-09-30 2019-02-14 Siemens Healthcare Gmbh Optimiertes Magnetresonanz-Schichtmultiplexing-Verfahren
KR20190118075A (ko) * 2018-04-09 2019-10-17 삼성전자주식회사 단층 촬영 장치 및 그에 따른 단층 영상 처리 방법
CN110559001B (zh) * 2019-09-03 2020-10-09 明峰医疗系统股份有限公司 一种ct扫描仪散焦辐射强度分布测量方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5249123A (en) * 1991-11-25 1993-09-28 General Electric Company Compensation of computed tomography data for detector afterglow
US5359638A (en) 1992-03-30 1994-10-25 General Electric Company Method for recursive filtering residual afterglow from previous computed tomography scans
US5644610A (en) * 1996-06-27 1997-07-01 Analogic Corporation Multi-processor afterglow artifact correction filter for use with computed tomography scanners
US5907593A (en) * 1997-11-26 1999-05-25 General Electric Company Image reconstruction in a CT fluoroscopy system
DE19853143C2 (de) * 1998-11-18 2000-09-07 Vamp Verfahren Und Apparate De Computertomograph mit reduzierter Dosisbelastung bzw. reduziertem Bildpunktrauschen

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003225230A (ja) * 2001-11-29 2003-08-12 Toshiba Corp コンピュータ断層撮影装置
JP2005279282A (ja) * 2004-03-30 2005-10-13 Toshiba Corp 風車アーチファクト削減用の半径内画像依存検出器列フィルタリング方法、ｘ線ｃｔ装置及びプログラム
JP2014054553A (ja) * 2004-03-30 2014-03-27 Toshiba Corp 風車アーチファクト削減用の半径内画像依存検出器列フィルタリング方法、ｘ線ｃｔ装置及びプログラム
JP2008505678A (ja) * 2004-07-07 2008-02-28 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 断層撮影画像における時間的アーチファクトの訂正のためのシステム及び方法

Also Published As

Publication number Publication date
EP1071044A3 (en) 2005-08-10
EP1071044A2 (en) 2001-01-24
EP1071044B1 (en) 2008-02-20
IL137107A0 (en) 2001-06-14
DE60038077T2 (de) 2009-03-05
IL137107A (en) 2004-01-04
US6295331B1 (en) 2001-09-25
DE60038077D1 (de) 2008-04-03

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