IT1229455B - Metodo per ridurre significativamente il tempo di ricostruzione di immagini in tomografia, assistita da calcolatore ad angolo limitatore. - Google Patents

Metodo per ridurre significativamente il tempo di ricostruzione di immagini in tomografia, assistita da calcolatore ad angolo limitatore.

Info

Publication number
IT1229455B
IT1229455B IT8920799A IT2079989A IT1229455B IT 1229455 B IT1229455 B IT 1229455B IT 8920799 A IT8920799 A IT 8920799A IT 2079989 A IT2079989 A IT 2079989A IT 1229455 B IT1229455 B IT 1229455B
Authority
IT
Italy
Prior art keywords
tomography
reconstruction
assisted
images
time
Prior art date
Application number
IT8920799A
Other languages
English (en)
Other versions
IT8920799A0 (it
Inventor
Kwok Cheong Tam
Original Assignee
Gen Electric
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 Gen Electric filed Critical Gen Electric
Publication of IT8920799A0 publication Critical patent/IT8920799A0/it
Application granted granted Critical
Publication of IT1229455B publication Critical patent/IT1229455B/it

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
    • G06T11/006—Inverse problem, transformation from projection-space into object-space, e.g. transform methods, back-projection, algebraic methods
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2211/00—Image generation
    • G06T2211/40—Computed tomography
    • G06T2211/424—Iterative

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Mathematical Optimization (AREA)
  • Mathematical Analysis (AREA)
  • Pure & Applied Mathematics (AREA)
  • Algebra (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
  • Image Processing (AREA)
  • Image Generation (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
IT8920799A 1988-06-06 1989-06-06 Metodo per ridurre significativamente il tempo di ricostruzione di immagini in tomografia, assistita da calcolatore ad angolo limitatore. IT1229455B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/201,784 US5053958A (en) 1988-06-06 1988-06-06 Method to reduce image reconstruction time in limited-angle ct systems including using initial reconstruction valves for measured projection data during each iteration

Publications (2)

Publication Number Publication Date
IT8920799A0 IT8920799A0 (it) 1989-06-06
IT1229455B true IT1229455B (it) 1991-08-08

Family

ID=22747279

Family Applications (1)

Application Number Title Priority Date Filing Date
IT8920799A IT1229455B (it) 1988-06-06 1989-06-06 Metodo per ridurre significativamente il tempo di ricostruzione di immagini in tomografia, assistita da calcolatore ad angolo limitatore.

Country Status (6)

Country Link
US (1) US5053958A (it)
JP (1) JPH0251788A (it)
DE (1) DE3918354A1 (it)
FR (1) FR2632427A1 (it)
GB (1) GB2221130B (it)
IT (1) IT1229455B (it)

Families Citing this family (39)

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FR2648304B1 (fr) * 1989-06-12 1991-08-30 Commissariat Energie Atomique Procede de determination d'un espace a partir d'un espace discret connu pour la reconstruction d'images bi ou tridimensionnelles, dispositif de mise en oeuvre et application du procede
US5233518A (en) * 1989-11-13 1993-08-03 General Electric Company Extrapolative reconstruction method for helical scanning
US5270926A (en) * 1990-12-21 1993-12-14 General Electric Company Method and apparatus for reconstructing a three-dimensional computerized tomography (CT) image of an object from incomplete cone beam projection data
US5396528A (en) * 1991-06-28 1995-03-07 General Electric Company Tomographic image reconstruction using cross-plane rays
DE4139150C1 (en) * 1991-11-28 1993-06-24 Siemens Ag, 8000 Muenchen, De Computer tomograph with part ring formed X=ray source and detector - has double ring system without complementary interpolation
US5414623A (en) * 1992-05-08 1995-05-09 Iowa State University Research Foundation Optoelectronic system for implementation of iterative computer tomography algorithms
US5611026A (en) * 1992-12-21 1997-03-11 General Electric Company Combining a priori data with partial scan data to project three dimensional imaging of arbitrary objects with computerized tomography
US5319693A (en) * 1992-12-30 1994-06-07 General Electric Company Three dimensional computerized tomography scanning configuration for imaging large objects with smaller area detectors
US5446776A (en) * 1993-08-02 1995-08-29 General Electric Company Tomography with generation of radon data on polar grid points
US5461651A (en) * 1993-11-17 1995-10-24 General Electric Company Reconstruction of images in cone beam scanning with rectangular detector elements
FR2721402B1 (fr) * 1994-06-21 1996-08-02 Commissariat Energie Atomique Procédé d'obtention par radiographie tangentielle d'une image d'un objet en rotation autour d'un axe.
US5805098A (en) * 1996-11-01 1998-09-08 The United States Of America As Represented By The Secretary Of The Army Method and system for forming image by backprojection
US6788758B2 (en) * 2001-01-17 2004-09-07 African Medical Imaging (Proprietary) Limited Method of reconstructing tomographic images
JP2002290868A (ja) * 2001-03-27 2002-10-04 Texas Instr Japan Ltd 周波数変換回路、復調回路及びテレビ受信装置
US20060120579A1 (en) * 2002-07-08 2006-06-08 Ulf Skoglund Imaging apparatus and method
US6873677B2 (en) * 2003-04-18 2005-03-29 Leon Kaufman Method and device for improving time resolution of an imaging device
US7309985B2 (en) 2003-04-23 2007-12-18 Koninklijke Philips Electronics N. V. Method of reconstructing an MR image
US20050078861A1 (en) * 2003-10-10 2005-04-14 Usikov Daniel A. Tomographic system and method for iteratively processing two-dimensional image data for reconstructing three-dimensional image data
US7042974B2 (en) * 2004-05-20 2006-05-09 Eastman Kodak Company Method for reconstructing tomographic images
EP1815438A1 (en) * 2004-11-15 2007-08-08 Philips Intellectual Property & Standards GmbH Reconstruction method for computer tomograph and computer tomograph
DE102005053022A1 (de) * 2005-11-07 2007-05-16 Siemens Ag Verfahren und Vorrichtung zur räumlichen Darstellung eines Untersuchungsbereichs eines Untersuchungsobjekts
WO2007069121A1 (en) * 2005-12-15 2007-06-21 Philips Intellectual Property & Standards Gmbh Advanced convergence for multiple iterative algorithm
DE102006025759A1 (de) * 2006-05-31 2007-12-06 Siemens Ag Verfahren zur Bildrekonstruktion eines Objektes mit Projektionen und Vorrichtung zur Durchführung des Verfahrens
US7680240B2 (en) * 2007-03-30 2010-03-16 General Electric Company Iterative reconstruction of tomographic image data method and system
US7920670B2 (en) * 2007-03-30 2011-04-05 General Electric Company Keyhole computed tomography
US8135186B2 (en) * 2008-01-25 2012-03-13 Purdue Research Foundation Method and system for image reconstruction
US7885371B2 (en) * 2008-08-28 2011-02-08 General Electric Company Method and system for image reconstruction
US8111893B2 (en) * 2009-06-09 2012-02-07 Wisconsin Alumni Research Foundation Method for dynamic prior image constrained image reconstruction
DE102009047867B4 (de) * 2009-09-30 2016-10-06 Siemens Healthcare Gmbh Verfahren und Vorrichtung zur Korrektur von trunkierten Projektionsdaten
US7916828B1 (en) * 2010-01-06 2011-03-29 General Electric Company Method for image construction
US8238518B2 (en) * 2010-06-23 2012-08-07 The Institute Of Cancer Research Radiotherapy system
US8189735B2 (en) * 2010-07-22 2012-05-29 General Electric Company System and method for reconstruction of X-ray images
DE102011083391A1 (de) * 2011-09-26 2013-03-28 Siemens Aktiengesellschaft Verfahren und CT-System zur Erzeugung eines CT-Bilddatensatzes
CN104182932B (zh) * 2013-05-27 2017-04-12 株式会社日立制作所 Ct 装置、ct 图像系统及ct 图像生成方法
CN103745488A (zh) * 2013-12-31 2014-04-23 沈阳东软医疗系统有限公司 一种计算机断层成像中生成投影数据的方法和装置
JP6617368B2 (ja) * 2015-06-08 2019-12-11 国立研究開発法人理化学研究所 電子源の作製方法
CN108010096A (zh) * 2017-11-30 2018-05-08 上海联影医疗科技有限公司 Cbct图像重建方法、装置和cbct设备
CN111080740B (zh) * 2019-12-27 2023-06-16 上海联影医疗科技股份有限公司 一种图像校正方法、装置、设备及介质
CN112070856B (zh) * 2020-09-16 2022-08-26 重庆师范大学 基于非下采样轮廓波变换的有限角c型臂ct图像重建方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4506327A (en) * 1981-11-23 1985-03-19 General Electric Company Limited-angle imaging using multiple energy scanning
US4866614A (en) * 1985-12-26 1989-09-12 General Electric Company Ultrasound characterization of 3-dimensional flaws
DE3716988A1 (de) * 1986-06-23 1988-01-14 Gen Electric Verfahren zum rekonstruieren von objekten aus abtastungen mit begrenztem winkel bei der computertomographie
US4922421A (en) * 1986-12-15 1990-05-01 General Electric Company Flaw characterization by multiple angle inspection
US4888693A (en) * 1987-04-01 1989-12-19 General Electric Company Method to obtain object boundary information in limited-angle computerized tomography

Also Published As

Publication number Publication date
DE3918354A1 (de) 1990-01-11
JPH0251788A (ja) 1990-02-21
US5053958A (en) 1991-10-01
IT8920799A0 (it) 1989-06-06
GB2221130A (en) 1990-01-24
GB8912867D0 (en) 1989-07-26
GB2221130B (en) 1992-07-08
FR2632427A1 (fr) 1989-12-08

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Effective date: 19930608