CA1205214A - Method and computer tomography device for determining a tomographic image with elevated resolution - Google Patents

Method and computer tomography device for determining a tomographic image with elevated resolution

Info

Publication number
CA1205214A
CA1205214A CA000427539A CA427539A CA1205214A CA 1205214 A CA1205214 A CA 1205214A CA 000427539 A CA000427539 A CA 000427539A CA 427539 A CA427539 A CA 427539A CA 1205214 A CA1205214 A CA 1205214A
Authority
CA
Canada
Prior art keywords
measuring
subgroup
measuring data
paths
radiation
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
Application number
CA000427539A
Other languages
English (en)
French (fr)
Inventor
Johannes C.A. Op De Beek
Steven Lobregt
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken 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 Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of CA1205214A publication Critical patent/CA1205214A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G06T11/006—Inverse problem, transformation from projection-space into object-space, e.g. transform methods, back-projection, algebraic methods
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2211/00—Image generation
    • G06T2211/40—Computed tomography
    • G06T2211/421—Filtered back projection [FBP]
    • 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

  • 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)
  • Image Processing (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
  • Image Analysis (AREA)
CA000427539A 1982-05-12 1983-05-05 Method and computer tomography device for determining a tomographic image with elevated resolution Expired CA1205214A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL8201942 1982-05-12
NL8201942A NL8201942A (nl) 1982-05-12 1982-05-12 Werkwijze en computer tomografie-inrichting voor het bepalen van een tomografiebeeld met verhoogd oplossend vermogen.

Publications (1)

Publication Number Publication Date
CA1205214A true CA1205214A (en) 1986-05-27

Family

ID=19839718

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000427539A Expired CA1205214A (en) 1982-05-12 1983-05-05 Method and computer tomography device for determining a tomographic image with elevated resolution

Country Status (7)

Country Link
US (1) US4555760A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
EP (1) EP0094124B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JP (1) JPS58206729A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CA (1) CA1205214A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE3365095D1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
IL (1) IL68633A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
NL (1) NL8201942A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4637040A (en) * 1983-07-28 1987-01-13 Elscint, Ltd. Plural source computerized tomography device with improved resolution
JPS6085357A (ja) * 1983-10-17 1985-05-14 Toshiba Corp 核磁気共鳴映像装置
FR2553898B1 (fr) * 1983-10-25 1986-03-21 Thomson Csf Procede d'acquisition et de reconstruction d'image par tomodensitometrie, et tomodensitometre mettant en oeuvre ce procede
FR2562371A1 (fr) * 1984-03-30 1985-10-04 Thomson Cgr Procede de reconstruction d'une image a haute resolution, par tomodensitometrie
US4729100A (en) * 1984-08-28 1988-03-01 Kabushiki Kaisha Toshiba CT System which convolutes projection data with a frequency varying filter function
JPH0750501B2 (ja) * 1984-09-19 1995-05-31 株式会社日立メディコ Ｘ線ｃｔ装置
JPS6198239A (ja) * 1984-10-18 1986-05-16 株式会社日立メディコ Ｘ線ｃｔ装置
GB2181330B (en) * 1985-09-26 1990-05-09 Toshiba Kk X-ray inspection apparatus
JPH0799539B2 (ja) * 1985-09-30 1995-10-25 ジーイー横河メディカルシステム株式会社 放射線断層撮影装置
US5079697A (en) * 1989-05-01 1992-01-07 The General Hospital Corporation Distortion reduction in projection imaging by manipulation of fourier transform of projection sample
JP3653992B2 (ja) * 1998-06-26 2005-06-02 株式会社日立製作所 コンピュータ断層撮影装置及びコンピュータ断層撮影方法
US7251307B2 (en) * 2004-11-24 2007-07-31 Wisconsin Alumni Research Foundation Fan-beam and cone-beam image reconstruction using filtered backprojection of differentiated projection data
US7672421B2 (en) * 2005-10-12 2010-03-02 Siemens Medical Solutions Usa, Inc. Reduction of streak artifacts in low dose CT imaging through multi image compounding
US8116426B2 (en) * 2008-11-11 2012-02-14 Kabushiki Kaisha Toshiba Computed tomography device and method using circular-pixel position-adaptive interpolation
US9224216B2 (en) * 2013-07-31 2015-12-29 Kabushiki Kaisha Toshiba High density forward projector for spatial resolution improvement for medical imaging systems including computed tomography
CN115963124B (zh) * 2021-10-08 2024-01-26 同方威视技术股份有限公司 Ct成像系统

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4066903A (en) * 1974-07-20 1978-01-03 Emi Limited Radiology
US4398251A (en) * 1974-12-19 1983-08-09 Emi Limited Radiography
US4051379A (en) * 1975-11-28 1977-09-27 Artronix, Inc. Axial tomographic apparatus and detector
US4088887A (en) * 1975-12-10 1978-05-09 Emi Limited Radiography method comprising determination of corrected absorption values for members of sets of mutually inclined beam paths
US4365339A (en) * 1975-12-23 1982-12-21 General Electric Company Tomographic apparatus and method for reconstructing planar slices from non-absorbed and non-scattered radiation
US4326252A (en) * 1976-11-29 1982-04-20 Hitachi Medical Corporation Method of reconstructing cross-section image
NL7902015A (nl) * 1979-03-14 1980-09-16 Philips Nv Werkwijze en inrichting voor het bepalen van een stralingsabsorptieverdeling in een deel van een lichaam.
NL7908545A (nl) * 1979-11-23 1981-06-16 Philips Nv Inrichting voor het bepalen van een stralingsabsorptie- verdeling in een vlak van een lichaam.
JPS56136529A (en) * 1980-03-28 1981-10-24 Tokyo Shibaura Electric Co Apparatus for reconstituting image

Also Published As

Publication number Publication date
EP0094124B1 (en) 1986-08-06
JPH0470015B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1992-11-09
EP0094124A1 (en) 1983-11-16
IL68633A (en) 1987-03-31
JPS58206729A (ja) 1983-12-02
US4555760A (en) 1985-11-26
IL68633A0 (en) 1983-09-30
DE3365095D1 (en) 1986-09-11
NL8201942A (nl) 1983-12-01

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