FR2631475B1 - Procede d'amelioration de la qualite des images par utilisation d'une information a priori - Google Patents

Procede d'amelioration de la qualite des images par utilisation d'une information a priori

Info

Publication number
FR2631475B1
FR2631475B1 FR8906121A FR8906121A FR2631475B1 FR 2631475 B1 FR2631475 B1 FR 2631475B1 FR 8906121 A FR8906121 A FR 8906121A FR 8906121 A FR8906121 A FR 8906121A FR 2631475 B1 FR2631475 B1 FR 2631475B1
Authority
FR
France
Prior art keywords
images
improving
quality
priority information
priority
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
FR8906121A
Other languages
English (en)
Other versions
FR2631475A1 (fr
Inventor
Wayne Eberhard Jeffrey
Helena Valborg Hedengren Kristina
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 FR2631475A1 publication Critical patent/FR2631475A1/fr
Application granted granted Critical
Publication of FR2631475B1 publication Critical patent/FR2631475B1/fr
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
    • G06T11/006—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

  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Mathematical Analysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Pulmonology (AREA)
  • Algebra (AREA)
  • Radiology & Medical Imaging (AREA)
  • Mathematical Optimization (AREA)
  • Mathematical Physics (AREA)
  • Pure & Applied Mathematics (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
  • Image Processing (AREA)
  • Image Generation (AREA)
  • Image Analysis (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
FR8906121A 1988-05-16 1989-05-10 Procede d'amelioration de la qualite des images par utilisation d'une information a priori Expired - Fee Related FR2631475B1 (fr)

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
FR2631475A1 FR2631475A1 (fr) 1989-11-17
FR2631475B1 true FR2631475B1 (fr) 1994-02-04

Family

ID=22716819

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8906121A Expired - Fee Related FR2631475B1 (fr) 1988-05-16 1989-05-10 Procede d'amelioration de la qualite des images par utilisation d'une information a priori

Country Status (6)

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

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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
US5272760A (en) * 1992-05-29 1993-12-21 Cimpiter Corporation Radiographic image evaluation apparatus and method
US5384862A (en) * 1992-05-29 1995-01-24 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
ATE508440T1 (de) 2000-10-11 2011-05-15 Fraunhofer Ges Forschung Darstellung eines objektes mittels einer durchstrahlung sowie rekonstruktion unter verwendung von simulierten durchstrahlungsdaten
US7105824B2 (en) * 2002-05-09 2006-09-12 Neurologica, Corp. High resolution photon emission computed tomographic imaging tool
US20030001098A1 (en) * 2001-05-09 2003-01-02 Stoddart Hugh A. High resolution photon emission computed tomographic imaging tool
JP2004535858A (ja) * 2001-05-16 2004-12-02 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 三次元データーセットを可視化するための方法及び装置
WO2003102558A1 (fr) 2002-06-04 2003-12-11 Visen Medical, Inc. Tomographie avec et sans contact : volumes d'imagerie avec geometries arbitraires
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
US7647091B2 (en) * 2003-02-05 2010-01-12 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
CA2600648A1 (fr) * 2005-03-09 2006-09-14 Stefan Kasperl Correction de non-linearites d'un systeme d'imagerie par une connaissance a priori en radiographie
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
CN109475337B (zh) * 2016-03-24 2022-10-14 尼维医疗公司 用于图像重建的系统和方法
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

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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
IT1235877B (it) 1992-11-23
FR2631475A1 (fr) 1989-11-17
DE3915370A1 (de) 1989-11-30
GB8911100D0 (en) 1989-06-28
GB2220830B (en) 1992-11-25
IT8920521A0 (it) 1989-05-16
US4920491A (en) 1990-04-24
GB2220830A (en) 1990-01-17
JPH0250779A (ja) 1990-02-20

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Legal Events

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