NL7903199A - Correctie van polychromatische roentgenbeeldfouten in computertomografiebeelden. - Google Patents

Correctie van polychromatische roentgenbeeldfouten in computertomografiebeelden.

Info

Publication number
NL7903199A
NL7903199A NL7903199A NL7903199A NL7903199A NL 7903199 A NL7903199 A NL 7903199A NL 7903199 A NL7903199 A NL 7903199A NL 7903199 A NL7903199 A NL 7903199A NL 7903199 A NL7903199 A NL 7903199A
Authority
NL
Netherlands
Prior art keywords
polychromatic
correction
frame image
computer tomography
tomography images
Prior art date
Application number
NL7903199A
Other languages
English (en)
Dutch (nl)
Original Assignee
Philips Nv
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 Philips Nv filed Critical Philips Nv
Publication of NL7903199A publication Critical patent/NL7903199A/xx

Links

Classifications

    • 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
    • A61B6/03—Computed tomography [CT]
    • A61B6/032—Transmission computed tomography [CT]
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • 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

  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Medical Informatics (AREA)
  • Pathology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Pulmonology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Optics & Photonics (AREA)
  • General Physics & Mathematics (AREA)
  • Radiology & Medical Imaging (AREA)
  • Biomedical Technology (AREA)
  • Biophysics (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Image Processing (AREA)
  • Medical Treatment And Welfare Office Work (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
NL7903199A 1978-04-28 1979-04-24 Correctie van polychromatische roentgenbeeldfouten in computertomografiebeelden. NL7903199A (nl)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/901,212 US4217641A (en) 1978-04-28 1978-04-28 Correction for polychromatic X-ray distortion in CT images

Publications (1)

Publication Number Publication Date
NL7903199A true NL7903199A (nl) 1979-10-30

Family

ID=25413756

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7903199A NL7903199A (nl) 1978-04-28 1979-04-24 Correctie van polychromatische roentgenbeeldfouten in computertomografiebeelden.

Country Status (8)

Country Link
US (1) US4217641A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JP (1) JPS54144189A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CA (1) CA1124890A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE2916486A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FR (1) FR2424590B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB2020939B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
NL (1) NL7903199A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
SE (1) SE7903602L (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

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US4670840A (en) * 1983-03-09 1987-06-02 Elscint, Inc. Ring artifact correction for computerized tomography
US4626991A (en) * 1983-04-21 1986-12-02 Elscint Incorporated System for reprojecting images acquired by backprojection
US4580219A (en) * 1983-05-02 1986-04-01 General Electric Company Method for reducing image artifacts due to projection measurement inconsistencies
NL8401739A (nl) * 1983-06-02 1985-01-02 Elscint Ltd Stelsel en werkwijze voor het opnieuw projecteren van beelden.
US4714997A (en) * 1983-06-02 1987-12-22 Elscint Incorporated Data reduction in reprojection systems
US4616318A (en) * 1983-06-07 1986-10-07 Elscint, Inc. System for reprojecting images using transform techniques
IL69327A (en) * 1983-07-26 1986-11-30 Elscint Ltd Automatic misregistration correction
US4682291A (en) * 1984-10-26 1987-07-21 Elscint Ltd. Noise artifacts reduction
US4718010A (en) * 1984-12-28 1988-01-05 Kabushiki Kaisha Toshiba CT system for creating image data from high and low energy radiation
US4663666A (en) * 1985-01-23 1987-05-05 Vsp, Inc. Camera output data correction apparatus
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US4789930A (en) * 1985-11-15 1988-12-06 Picker International, Inc. Energy dependent gain correction for radiation detection
WO1987004830A1 (en) * 1986-01-30 1987-08-13 Art Bickford & Co. Gesellschaft M.B.H. Device for obtaining tomographic x-ray photographs
JPS62186381A (ja) * 1986-02-12 1987-08-14 Hitachi Ltd 画像位置合わせ方式
US4731865A (en) * 1986-03-27 1988-03-15 General Electric Company Digital image correction
US4947323A (en) * 1986-05-22 1990-08-07 University Of Tennessee Research Corporation Method and apparatus for measuring small spatial dimensions of an object
US4792900A (en) * 1986-11-26 1988-12-20 Picker International, Inc. Adaptive filter for dual energy radiographic imaging
FR2636752B1 (fr) * 1988-09-16 1990-10-26 Gen Electric Cgr Procede et systeme de correction des defauts d'images d'un scanner dus aux deplacements de ce dernier
US5008822A (en) * 1988-11-25 1991-04-16 Picker International, Inc. Combined high speed backprojection and forward projection processor for CT systems
US5133020A (en) * 1989-07-21 1992-07-21 Arch Development Corporation Automated method and system for the detection and classification of abnormal lesions and parenchymal distortions in digital medical images
US5123054A (en) * 1989-10-19 1992-06-16 Fuji Photo Film Co., Ltd. Abnormal pattern detecting apparatus
US5243664A (en) * 1991-09-16 1993-09-07 Picker International, Inc. Post-processing technique for reducing metallic clip artifacts in CT images
US5384862A (en) * 1992-05-29 1995-01-24 Cimpiter Corporation Radiographic image evaluation apparatus and method
IL119283A0 (en) * 1996-09-19 1996-12-05 Elscint Ltd Adaptive filtering
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US5953444A (en) * 1997-10-22 1999-09-14 University Of Pennsylvania Method for improved correction of spectrum hardening artifacts in computed tomography images
US6351548B1 (en) 1999-06-23 2002-02-26 The Board Of Trustees Of The University Of Illinois Fast hierarchical reprojection algorithm for tomography
US6282257B1 (en) 1999-06-23 2001-08-28 The Board Of Trustees Of The University Of Illinois Fast hierarchical backprojection method for imaging
US6332035B1 (en) 1999-06-23 2001-12-18 The Board Of Trustees Of The University Of Illinois Fast hierarchical reprojection algorithms for 3D radon transforms
US6263096B1 (en) 1999-06-23 2001-07-17 The Board Of Trustees Of The University Of Illinois Multilevel domain decomposition method for fast reprojection of images
US6307911B1 (en) 1999-06-23 2001-10-23 The Board Of Trustees Of The University Of Illinois Fast hierarchical backprojection for 3D Radon transform
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US20060274916A1 (en) * 2001-10-01 2006-12-07 L-3 Communications Security And Detection Systems Remote data access
US20060115109A1 (en) * 2001-10-01 2006-06-01 L-3 Communications Security And Detection Systems, Inc. Ensuring airline safety while safeguarding personal passenger information
US8031903B2 (en) * 2001-10-01 2011-10-04 L-3 Communications Security And Detection Systems, Inc. Networked security system
US6816571B2 (en) 2002-02-06 2004-11-09 L-3 Communications Security And Detection Systems Corporation Delaware Method and apparatus for transmitting information about a target object between a prescanner and a CT scanner
EP1689640A2 (en) * 2003-11-19 2006-08-16 L-3 Communications Security and Detection Systems Corporation Security system with distributed computing
CN100453044C (zh) * 2004-11-16 2009-01-21 北京航空航天大学 基于原始投影正弦图的ct射束硬化校正方法
DE102005031903A1 (de) * 2005-07-07 2007-01-11 Siemens Ag Verfahren zur nichtlinearen Bildbearbeitung und Flachdetektor mit einer Korrektureinheit
US7551708B2 (en) * 2007-02-07 2009-06-23 General Electric Company Method of iterative reconstruction for energy discriminating computed tomography systems
WO2009047643A2 (en) * 2007-04-23 2009-04-16 Comagna Kft. Mehtod and apparatus for image processing
DE102007020065A1 (de) * 2007-04-27 2008-10-30 Siemens Ag Verfahren für die Erstellung von Massenbelegungsbildern anhand von in unterschiedlichen Energiebereichen aufgenommenen Schwächungsbildern
DE102009043213A1 (de) * 2009-09-28 2011-03-31 Siemens Aktiengesellschaft Effiziente Korrektur von Polychromieeffekten bei der Bildrekonstruktion
WO2012176088A1 (en) * 2011-06-21 2012-12-27 Koninklijke Philips Electronics N.V. Imaging apparatus
CN103917862A (zh) 2011-09-07 2014-07-09 拉皮斯坎系统股份有限公司 整合舱单数据和成像/检测处理的x射线检查系统
GB2564038B (en) 2016-02-22 2021-11-10 Rapiscan Systems Inc Systems and methods for detecting threats and contraband in cargo

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SE373279B (sv) * 1973-05-11 1975-02-03 Atomenergi Ab Forfarande och anordning for undersokning av en del av en biologisk vevnad
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US3927318A (en) * 1974-05-06 1975-12-16 Albert Macovski Cross-sectional fluorescent imaging system
DE2442412A1 (de) * 1974-09-05 1976-03-18 Philips Patentverwaltung Anordnung zur ermittlung der verteilung der absorption oder der emission von strahlung in einer ebene eines koerpers
US3965358A (en) * 1974-12-06 1976-06-22 Albert Macovski Cross-sectional imaging system using a polychromatic x-ray source
GB1578442A (en) * 1976-07-01 1980-11-05 Emi Ltd Radiography
US4029963A (en) * 1976-07-30 1977-06-14 The Board Of Trustees Of Leland Stanford Junior University X-ray spectral decomposition imaging system

Also Published As

Publication number Publication date
CA1124890A (en) 1982-06-01
US4217641A (en) 1980-08-12
JPS54144189A (en) 1979-11-10
DE2916486A1 (de) 1979-10-31
GB2020939A (en) 1979-11-21
JPH0260330B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1990-12-17
FR2424590A1 (fr) 1979-11-23
GB2020939B (en) 1982-11-24
FR2424590B1 (fr) 1986-03-28
DE2916486C2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1989-04-13
SE7903602L (sv) 1979-10-29

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Legal Events

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