IT1235877B - Metodo per migliorare qualita' di immagini mediante utilizzazione di informazioni a priori particolarmente nella tomografia computerizzata - Google Patents

Metodo per migliorare qualita' di immagini mediante utilizzazione di informazioni a priori particolarmente nella tomografia computerizzata

Info

Publication number
IT1235877B
IT1235877B IT8920521A IT2052189A IT1235877B IT 1235877 B IT1235877 B IT 1235877B IT 8920521 A IT8920521 A IT 8920521A IT 2052189 A IT2052189 A IT 2052189A IT 1235877 B IT1235877 B IT 1235877B
Authority
IT
Italy
Prior art keywords
priori
information
image quality
improving image
computerized tomography
Prior art date
Application number
IT8920521A
Other languages
English (en)
Other versions
IT8920521A0 (it
Inventor
Jeffrey Wayne Eberhard
Kristina Helena Walb Hedengren
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 IT8920521A0 publication Critical patent/IT8920521A0/it
Application granted granted Critical
Publication of IT1235877B publication Critical patent/IT1235877B/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
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
    • G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
    • G01N23/04—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and forming images of the material
    • G01N23/046—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and forming images of the material using tomography, e.g. computed tomography [CT]
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2223/00—Investigating materials by wave or particle radiation
    • G01N2223/40—Imaging
    • G01N2223/419—Imaging computed tomograph
    • 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

  • Theoretical Computer Science (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Radiology & Medical Imaging (AREA)
  • Biochemistry (AREA)
  • Pure & Applied Mathematics (AREA)
  • Mathematical Optimization (AREA)
  • Mathematical Analysis (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Pulmonology (AREA)
  • Algebra (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Mathematical Physics (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
  • Image Processing (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Image Generation (AREA)
  • Image Analysis (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
IT8920521A 1988-05-16 1989-05-16 Metodo per migliorare qualita' di immagini mediante utilizzazione di informazioni a priori particolarmente nella tomografia computerizzata IT1235877B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/194,235 US4920491A (en) 1988-05-16 1988-05-16 Enhancement of image quality by utilization of a priori information

Publications (2)

Publication Number Publication Date
IT8920521A0 IT8920521A0 (it) 1989-05-16
IT1235877B true IT1235877B (it) 1992-11-23

Family

ID=22716819

Family Applications (1)

Application Number Title Priority Date Filing Date
IT8920521A IT1235877B (it) 1988-05-16 1989-05-16 Metodo per migliorare qualita' di immagini mediante utilizzazione di informazioni a priori particolarmente nella tomografia computerizzata

Country Status (6)

Country Link
US (1) US4920491A (it)
JP (1) JPH0250779A (it)
DE (1) DE3915370A1 (it)
FR (1) FR2631475B1 (it)
GB (1) GB2220830B (it)
IT (1) IT1235877B (it)

Families Citing this family (54)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4969110A (en) * 1988-08-01 1990-11-06 General Electric Company Method of using a priori information in computerized tomography
US7382929B2 (en) * 1989-05-22 2008-06-03 Pixel Instruments Corporation Spatial scan replication circuit
JP2955873B2 (ja) * 1989-08-10 1999-10-04 富士写真フイルム株式会社 画像処理装置
FR2655751A1 (fr) * 1989-12-08 1991-06-14 Hamon Christian Procede d'amelioration de la reconstruction tomographique d'images ou de volumes a partir d'un nombre limite de projections de mesure.
US5123056A (en) * 1990-02-02 1992-06-16 Siemens Medical Systems, Inc. Whole-leg x-ray image processing and display techniques
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
US5243664A (en) * 1991-09-16 1993-09-07 Picker International, Inc. Post-processing technique for reducing metallic clip artifacts in CT images
US5414623A (en) * 1992-05-08 1995-05-09 Iowa State University Research Foundation Optoelectronic system for implementation of iterative computer tomography algorithms
US5384862A (en) * 1992-05-29 1995-01-24 Cimpiter Corporation Radiographic image evaluation apparatus and method
US5272760A (en) * 1992-05-29 1993-12-21 Cimpiter Corporation Radiographic image evaluation apparatus and method
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
US5440647A (en) * 1993-04-22 1995-08-08 Duke University X-ray procedure for removing scattered radiation and enhancing signal-to-noise ratio (SNR)
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
US5550376A (en) * 1995-05-22 1996-08-27 General Electric Company Method of calibration of imaging devices
US5764721A (en) * 1997-01-08 1998-06-09 Southwest Research Institute Method for obtaining optimized computed tomography images from a body of high length-to-width ratio using computer aided design information for the body
US6041132A (en) * 1997-07-29 2000-03-21 General Electric Company Computed tomography inspection of composite ply structure
US6047041A (en) * 1997-09-08 2000-04-04 Scientific Measurement System Apparatus and method for comparison
US6201888B1 (en) * 1998-02-18 2001-03-13 International Business Machines Corporation System and method for restoring, describing and graphically displaying noise-corrupted boundaries in tomography images
US6289235B1 (en) * 1998-03-05 2001-09-11 Wake Forest University Method and system for creating three-dimensional images using tomosynthetic computed tomography
US6061469A (en) * 1998-06-22 2000-05-09 Mitsubishi Electric Information Technology Center America, Inc (Ita) Object rendering system to produce X-ray like images
US6081577A (en) * 1998-07-24 2000-06-27 Wake Forest University Method and system for creating task-dependent three-dimensional images
IL126761A0 (en) * 1998-10-26 1999-08-17 Romidot Ltd Computerized tomography for non-destructive testing
DE10037491A1 (de) 2000-08-01 2002-02-14 Stryker Leibinger Gmbh & Co Kg Verfahren zum dreidimensionalen Visualisieren von Strukturen im Körperinneren
ES2365128T3 (es) * 2000-10-11 2011-09-22 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Representación de un objeto por medio de una irradiación así como reconstrucción utilizando datos de irradiación simulados.
US20030001098A1 (en) * 2001-05-09 2003-01-02 Stoddart Hugh A. High resolution photon emission computed tomographic imaging tool
US7105824B2 (en) * 2002-05-09 2006-09-12 Neurologica, Corp. High resolution photon emission computed tomographic imaging tool
WO2002093943A2 (en) * 2001-05-16 2002-11-21 Koninklijke Philips Electronics N.V. Method and apparatus for visualizing a 3d data set
EP2410315B1 (en) 2002-06-04 2020-04-01 Visen Medical, Inc. Imaging volumes with arbitrary geometries in contact and non-contact tomography
US7092484B1 (en) 2002-06-14 2006-08-15 Iowa State University Research Foundation, Inc. Model-assisted reconstruction of volumetric data
US7227980B2 (en) * 2002-12-19 2007-06-05 Agilent Technologies, Inc. Systems and methods for tomographic reconstruction of images in compressed format
EP1593095B1 (en) * 2003-02-05 2019-04-17 The General Hospital Corporation Method and system for free space optical tomography of diffuse media
JP4138558B2 (ja) * 2003-04-03 2008-08-27 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 画像再構成装置、画像再構成方法および放射線断層像撮影装置
US6955549B2 (en) * 2003-05-28 2005-10-18 One World Technologies Limited Slide type battery ejection mechanism
US7203267B2 (en) * 2004-06-30 2007-04-10 General Electric Company System and method for boundary estimation using CT metrology
DE112006001354A5 (de) * 2005-03-09 2008-03-06 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Korrektur von Nichtlinearitäten eines Abbildungssystems durch ein a-priori Wissen bei Durchstrahlungsaufnahmen
DE102005022540B4 (de) * 2005-05-17 2007-07-05 Siemens Ag Verfahren zur Minimierung von Bildartefakten und medizinisches Bildgebungssystem
DE102005053022A1 (de) * 2005-11-07 2007-05-16 Siemens Ag Verfahren und Vorrichtung zur räumlichen Darstellung eines Untersuchungsbereichs eines Untersuchungsobjekts
DE102006036327A1 (de) * 2006-08-03 2008-02-14 Siemens Ag Verfahren zum Bereitstellen von 3D-Bilddaten und System zum Aufnehmen von Röntgenbildern
CN100483120C (zh) * 2006-09-05 2009-04-29 同方威视技术股份有限公司 一种用射线对液态物品进行安全检查的方法及设备
US20090226032A1 (en) * 2007-09-28 2009-09-10 Matthew Allen Merzbacher Systems and methods for reducing false alarms in detection systems
JP5292055B2 (ja) * 2008-10-29 2013-09-18 株式会社日立製作所 配管検査用断層撮影方法および装置
JP2010169636A (ja) * 2009-01-26 2010-08-05 Nikon Corp 形状測定装置
DE102009008115B4 (de) * 2009-02-09 2012-05-24 Siemens Aktiengesellschaft Verfahren und Vorrichtung zur Erzeugung eines digital rekonstruierten 2-D-Bildes aus einem 3-D-Bilddatensatz
DE102009047867B4 (de) * 2009-09-30 2016-10-06 Siemens Healthcare Gmbh Verfahren und Vorrichtung zur Korrektur von trunkierten Projektionsdaten
JP5812599B2 (ja) * 2010-02-25 2015-11-17 キヤノン株式会社 情報処理方法及びその装置
DE102010024684B8 (de) * 2010-06-23 2019-08-22 Siemens Healthcare Gmbh Verfahren zur Rekonstruktion von Bilddaten eines bewegten Untersuchungsobjektes, Steuer- und Recheneinheit, Computertomographiesystem und Computerprogramm
GB2493735B (en) * 2011-08-17 2014-07-23 Rolls Royce Plc Method for locating artefacts in a material
CN104382612A (zh) * 2014-11-13 2015-03-04 沈阳东软医疗系统有限公司 一种ct数据恢复方法及装置
US9841387B2 (en) * 2015-07-22 2017-12-12 Test Research, Inc. Inspection method and device
WO2017165835A1 (en) * 2016-03-24 2017-09-28 Nview Medical Inc. Systems and methods for image reconstruction
FR3077138B1 (fr) * 2018-01-24 2023-07-21 Safran Procede de controle non destuctif pour une piece aeronautique
CN111583389B (zh) * 2020-04-28 2023-05-23 重庆大学 一种基于cad模型的不完全扫描ct图像重建方法

Family Cites Families (4)

* 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
US4618924A (en) * 1984-09-28 1986-10-21 General Electric Company Automatic machining using constructive solid geometry with Boolean combinations of primitives including tool offsets to form a machining pattern
DE3716988A1 (de) * 1986-06-23 1988-01-14 Gen Electric Verfahren zum rekonstruieren von objekten aus abtastungen mit begrenztem winkel bei der computertomographie
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
US4920491A (en) 1990-04-24
IT8920521A0 (it) 1989-05-16
DE3915370A1 (de) 1989-11-30
JPH0250779A (ja) 1990-02-20
GB2220830B (en) 1992-11-25
GB8911100D0 (en) 1989-06-28
FR2631475B1 (fr) 1994-02-04
GB2220830A (en) 1990-01-17
FR2631475A1 (fr) 1989-11-17

Similar Documents

Publication Publication Date Title
IT1235877B (it) Metodo per migliorare qualita' di immagini mediante utilizzazione di informazioni a priori particolarmente nella tomografia computerizzata
GB2222356B (en) Method of using a priori information in computerized tomography
IT1248819B (it) Metodo di analisi a traslazione e rotazione per rappresentazione di immagini a raggi x
US4715383B1 (en) Method for reducing artifacts in NMR images
FR2752975B1 (fr) Procede de reconstruction d'une image tridimensionnelle d'un objet, en particulier une image tridimentionnelle angiographique
GB2203620B (en) Method to obtain object boundary information in limited-angle computerized tomography
EP0409310A3 (en) Edge detection method in images
IL92115A0 (en) Method for reducing motion induced image artifacts in projection imaging
GB8801003D0 (en) Method & apparatus for capturing information in drawing/writing
DE69127809T2 (de) Verfahren um zwei bewegungen in hintereinanderfolgenden teilbildern mit drei teilbildern dynamisch zu analysieren
AU4950290A (en) Method and apparatus for generating cephalometric images
GB2229337B (en) Image coding method
IT8447578A0 (it) Apparecchio e metodo per aumentare la risoluzione di immagini, in particolare per telecamere
FR2637368B1 (fr) Procede de determination de la couleur d'un objet, en particulier d'une prothese dentaire
IT8321617A0 (it) Metodo e dispositivo perl'elaborazione di immagini ai raggi x.
DE3674105D1 (de) Verfahren zur herstellung eines lichtbildsensors und zweidimensionaler matrixsensor nach diesem verfahren hergestellt.
IT8948284A0 (it) Metodo ed apparecchio per produrre fili e fili cosi' ottenuti
IL72167A0 (en) Data acquisition circuitry for use in computerized tomography
IT8249094A0 (it) Sistema analizzatore di immagini di oggetti, in particolare immagini a raggi x, per individuarne la identi ta'
IT1161131B (it) Procedimento per la stampa di caratteri di alta qualita' grafica
IL91072A (en) Segmentation method for use against moving objects
EP0432868A3 (en) Brush making apparatus for assembling tufts and method therefor
DE69032187T2 (de) Bildaufzeichnungsverfahren
DE69031771D1 (de) Farbbildinformationsverarbeitungsverfahren
DE69027398T2 (de) Bildaufzeichnungsverfahren

Legal Events

Date Code Title Description
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19950529