CA1213082A - Method of and device for determining the distribution of radiation attenuation in a body section - Google Patents

Method of and device for determining the distribution of radiation attenuation in a body section

Info

Publication number
CA1213082A
CA1213082A CA000439261A CA439261A CA1213082A CA 1213082 A CA1213082 A CA 1213082A CA 000439261 A CA000439261 A CA 000439261A CA 439261 A CA439261 A CA 439261A CA 1213082 A CA1213082 A CA 1213082A
Authority
CA
Canada
Prior art keywords
measurement data
measurement
projection
post
group
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
CA000439261A
Other languages
English (en)
French (fr)
Inventor
Willem H.M. Deckers
Johannes C.A. Op De Beek
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
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of CA1213082A publication Critical patent/CA1213082A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T12/00—Tomographic reconstruction from projections
    • G06T12/20—Inverse problem, i.e. transformations from projection space into object space
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
    • Y02A90/10—Information and communication technologies [ICT] supporting adaptation to climate change, e.g. for weather forecasting or climate simulation
    • 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)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Image Processing (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
  • Image Analysis (AREA)
  • Medical Treatment And Welfare Office Work (AREA)
CA000439261A 1982-10-22 1983-10-19 Method of and device for determining the distribution of radiation attenuation in a body section Expired CA1213082A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL8204086A NL8204086A (nl) 1982-10-22 1982-10-22 Werkwijze en inrichting voor het bepalen van een stralingsverzwakkingsverdeling in een vlak van een lichaam.
NL8204086 1982-10-22

Publications (1)

Publication Number Publication Date
CA1213082A true CA1213082A (en) 1986-10-21

Family

ID=19840448

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000439261A Expired CA1213082A (en) 1982-10-22 1983-10-19 Method of and device for determining the distribution of radiation attenuation in a body section

Country Status (7)

Country Link
US (1) US4549265A (OSRAM)
EP (1) EP0107253A1 (OSRAM)
JP (1) JPS5998276A (OSRAM)
AU (1) AU564172B2 (OSRAM)
CA (1) CA1213082A (OSRAM)
IL (1) IL70001A (OSRAM)
NL (1) NL8204086A (OSRAM)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4635197A (en) * 1983-12-29 1987-01-06 Shell Oil Company High resolution tomographic imaging method
US4712178A (en) * 1984-11-28 1987-12-08 Picker International Inc. Malfunctioning computed tomography detector correction method
US4674045A (en) * 1984-12-31 1987-06-16 Picker International Inc. Filter for data processing
US4752879A (en) * 1985-01-30 1988-06-21 Picker International, Inc. Method and apparatus for medical imaging
JPS6282349A (ja) * 1985-10-08 1987-04-15 Tokyo Keiki Co Ltd 超音波撮像装置
NL8601004A (nl) * 1986-04-21 1987-11-16 Philips Nv Computertomografie-inrichting met gekombineerd recursief- en convolutiefilter.
US4829430A (en) * 1987-11-13 1989-05-09 Mayo Foundation For Medical Education And Research Method for reducing artifacts in ultrasound backscatter tomography
FR2629214A1 (fr) * 1988-03-25 1989-09-29 Thomson Cgr Procede et systeme d'etalonnage d'un scanner a rayons x en utilisant un seul etalon non circulaire
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
US5047931A (en) * 1989-05-30 1991-09-10 General Electric Company Parallel computation of fan-beam back-projection reconstruction algorithm in computed tomography
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
US5043890A (en) * 1989-06-12 1991-08-27 General Electric Compensation of computed tomography data for objects positioned outside the field of view of the reconstructed image
US5457321A (en) * 1990-02-20 1995-10-10 Kabushiki Kaisha Toshiba Spect apparatus utilizing fan-parallel data conversion
US5528522A (en) * 1992-10-30 1996-06-18 United States Of America Portable radar or beacon emulator
US5841890A (en) * 1996-05-06 1998-11-24 Northrop Grumman Corporation Multi-dimensional wavelet tomography
US5982845A (en) * 1998-04-07 1999-11-09 Picker International, Inc. Forward projection and backprojection processor
US6324241B1 (en) * 1999-12-30 2001-11-27 Ge Medical Systems Global Technology Company, Llc Method and apparatus for CT reconstruction
EP1716809B1 (en) * 2004-02-16 2013-11-06 Hitachi Medical Corporation Tomogram reconstruction method and tomograph
US7961839B2 (en) 2005-12-15 2011-06-14 Koninklijke Philips Electronics N.V. Advanced convergence for multiple iterative algorithm
US7852980B2 (en) * 2007-10-31 2010-12-14 Xoran Technologies, Inc. Computed tomography with resolution recovery
US8938104B2 (en) * 2008-08-29 2015-01-20 Varian Medical Systems International Ag Systems and methods for adaptive filtering
US11403024B2 (en) * 2019-08-28 2022-08-02 Cohesity, Inc. Efficient restoration of content

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4398251A (en) * 1974-12-19 1983-08-09 Emi Limited Radiography
DE2521796C3 (de) * 1975-05-16 1979-12-13 Philips Patentverwaltung Gmbh, 2000 Hamburg Anordnung zur Ermittlung der räumlichen Verteilung der Absorption oder der Emission von Strahlung in einer Ebene eines Körpers
US4149248A (en) * 1975-12-23 1979-04-10 Varian Associates, Inc. Apparatus and method for reconstructing data
GB1577615A (en) * 1976-05-13 1980-10-29 Emi Ltd Radiography
IT1151463B (it) * 1977-01-19 1986-12-17 Varian Associates Ricostruzione in immagini bidimensionali di fette piane di oggetti da proiezioni di radiazione non assorbita e non dispersa
AU522916B2 (en) * 1977-09-30 1982-07-01 Ohio Nuclear X-ray tomographic apparatus
GB1602072A (en) * 1978-05-12 1981-11-04 Emi Ltd Processing arrangements for constructing representations of parts of bodies
GB1602071A (en) * 1978-05-12 1981-11-04 Emi Ltd Processing arrangements for medical examination

Also Published As

Publication number Publication date
NL8204086A (nl) 1984-05-16
US4549265A (en) 1985-10-22
EP0107253A1 (en) 1984-05-02
IL70001A0 (en) 1984-01-31
JPS5998276A (ja) 1984-06-06
AU564172B2 (en) 1987-08-06
IL70001A (en) 1987-01-30
JPH0415505B2 (OSRAM) 1992-03-18
AU2042583A (en) 1984-05-03

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