DE2735437A1 - Anordnung zur erzeugung einer darstellung der von einem objekt absorbierten strahlung - Google Patents

Anordnung zur erzeugung einer darstellung der von einem objekt absorbierten strahlung

Info

Publication number
DE2735437A1
DE2735437A1 DE19772735437 DE2735437A DE2735437A1 DE 2735437 A1 DE2735437 A1 DE 2735437A1 DE 19772735437 DE19772735437 DE 19772735437 DE 2735437 A DE2735437 A DE 2735437A DE 2735437 A1 DE2735437 A1 DE 2735437A1
Authority
DE
Germany
Prior art keywords
data
radiation
detector
functions
arrangement according
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.)
Withdrawn
Application number
DE19772735437
Other languages
German (de)
English (en)
Inventor
John Milan Pavkovich
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.)
Varian Medical Systems Inc
Original Assignee
Varian Associates Inc
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
Priority claimed from US05/760,492 external-priority patent/US4149249A/en
Application filed by Varian Associates Inc filed Critical Varian Associates Inc
Publication of DE2735437A1 publication Critical patent/DE2735437A1/de
Withdrawn legal-status Critical Current

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; 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
    • 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
    • G06—COMPUTING; CALCULATING OR 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Medical Informatics (AREA)
  • Surgery (AREA)
  • Veterinary Medicine (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Optics & Photonics (AREA)
  • Pathology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Molecular Biology (AREA)
  • Biophysics (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Pulmonology (AREA)
  • Algebra (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Mathematical Physics (AREA)
  • Pure & Applied Mathematics (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)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
DE19772735437 1977-01-19 1977-08-05 Anordnung zur erzeugung einer darstellung der von einem objekt absorbierten strahlung Withdrawn DE2735437A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/760,492 US4149249A (en) 1975-12-23 1977-01-19 Apparatus and method for reconstructing data

Publications (1)

Publication Number Publication Date
DE2735437A1 true DE2735437A1 (de) 1978-07-20

Family

ID=25059266

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19772735437 Withdrawn DE2735437A1 (de) 1977-01-19 1977-08-05 Anordnung zur erzeugung einer darstellung der von einem objekt absorbierten strahlung

Country Status (7)

Country Link
JP (1) JPS5396689A (ko)
CA (1) CA1111575A (ko)
DE (1) DE2735437A1 (ko)
FR (1) FR2378289A2 (ko)
IT (1) IT1151463B (ko)
NL (1) NL7706873A (ko)
SE (1) SE437763B (ko)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2816462A1 (de) * 1978-04-15 1979-10-25 Philips Patentverwaltung Verfahren zur erzeugung verbesserter rekonstruktionsbilder in computer-tomographiegeraeten
NL8204086A (nl) * 1982-10-22 1984-05-16 Philips Nv Werkwijze en inrichting voor het bepalen van een stralingsverzwakkingsverdeling in een vlak van een lichaam.
JPH0441844Y2 (ko) * 1984-11-02 1992-10-01
JP4585815B2 (ja) * 2004-09-03 2010-11-24 キヤノン株式会社 情報処理装置、撮影システム、吸収係数補正方法、及びコンピュータプログラム

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3924129A (en) * 1973-04-25 1975-12-02 Emi Ltd Method and apparatus for constructing a representation of a planar{3 s slice of body exposed to penetrating radiation
DE2657895A1 (de) * 1975-12-23 1977-07-14 Varian Associates Verfahren und anordnung zur erzeugung einer darstellung der von einem objekt absorbierten strahlung

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1283915A (en) * 1968-08-23 1972-08-02 Emi Ltd A method of and apparatus for examination of a body by radiation such as x or gamma radiation
GB1478123A (en) * 1973-08-18 1977-06-29 Emi Ltd Tomography
GB1526764A (en) * 1974-11-29 1978-09-27 Univ Leland Stanford Junior Position sensitive x-ray or ypsilon-ray detector and 3-d tomography using same
GB1537487A (en) * 1975-03-18 1978-12-29 Emi Ltd Radiography

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3924129A (en) * 1973-04-25 1975-12-02 Emi Ltd Method and apparatus for constructing a representation of a planar{3 s slice of body exposed to penetrating radiation
DE2657895A1 (de) * 1975-12-23 1977-07-14 Varian Associates Verfahren und anordnung zur erzeugung einer darstellung der von einem objekt absorbierten strahlung

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
D. Boyd et/al., A High Pressure Xenar Proportional Chamber to X-Ray Laminographic Reconstruction Using Fan Beam Geometry, in IEEE Transactions on Nuclear Science, NS-21(1974), S. 184-187 *

Also Published As

Publication number Publication date
SE7707270L (sv) 1978-07-20
JPS5396689A (en) 1978-08-24
JPS6314983B2 (ko) 1988-04-02
CA1111575A (en) 1981-10-27
NL7706873A (nl) 1978-07-21
FR2378289B2 (ko) 1983-08-19
FR2378289A2 (fr) 1978-08-18
SE437763B (sv) 1985-03-18
IT1151463B (it) 1986-12-17

Similar Documents

Publication Publication Date Title
DE2853560B2 (de) Elektronische Schaltung zur Berechnung mehrerer Interpolationsgrößen bei der in der medizinischen Tomographie durchgeführten Bilderzeugung
DE69720229T2 (de) Eine computertomographische methode und ein computertomograph
DE2627885A1 (de) Anordnung zur ermittlung der raeumlichen verteilung der absorption von strahlung in einer ebene eines koerpers
DE2351167C3 (de) EKG-Gerät
DE2138042A1 (de) Numerische Werkzeugmaschinensteue rungen
DE2645416A1 (de) Verfahren und anordnung zur ermittlung der verteilung der absorption eines koerpers
DE2724729C2 (ko)
DE3486321T2 (de) Verfahren und Gerät zur Emissionsrekonstruktion mit Dämpfungskompensation.
DE1588093A1 (de) Anordnung zum automatischen Steuern von Werkzeugmaschinen
DE2632278C2 (de) Verfahren zur Interpolation der Bahn eines bewegbaren Teils einer numerisch gesteuerten Maschine
DE2735437A1 (de) Anordnung zur erzeugung einer darstellung der von einem objekt absorbierten strahlung
DE2532716A1 (de) Verfahren zur konstruktion einer darstellung der absorptionsverteilung in einem ebenen bereich eines koerpers
DE3880554T2 (de) Datenerfassungsschaltung.
DE2461651B2 (de) Zählvorrichtung zum Zählen von Mustern
DE2511231A1 (de) Anordnung zur ermittlung der absorption einer strahlung in einer ebene eines koerpers
DE69004899T2 (de) Verfahren zur Korrektur der Signale von einem linearen Strahlungsdetektor und Korrekturvorrichtung zur Anwendung dieses Verfahrens.
DE2536974C2 (de) Unteranordnung für einen Digital-Differentialanalysator
DE10003101A1 (de) Nebenbedingungs-Erzeugungsvorrichtung für Logiksynthese und Nebenbedingungs-Erzeugungsverfahren dafür
DE3903838C2 (ko)
DE2521171A1 (de) Anordnung zur ermittlung der verteilung der absorption oder der emission von strahlung in einer ebene eines koerpers
DE2008204C3 (de) Vorrichtung zur Steuerung von mehrdimensionalen Bewegungsabläufen
AT376080B (de) Schaltungsanordnung zur wiedergabe bandbegrenzter, abgetasteter und digitalisierter signale
DE2424753C3 (de) Datenverarbeitungsgerät für ein tomographisches Gerät EMI Ltd, Hayes, Middlesex (Ver
DE2323684A1 (de) Vorrichtung zur erzeugung von steuersignalen fuer bewegungen in zueinander senkrechten richtungen
EP0024698B1 (de) Computertomograph zur zweidimensionalen Darstellung einer Ebene eines Objektes

Legal Events

Date Code Title Description
OGA New person/name/address of the applicant
8110 Request for examination paragraph 44
8176 Proceedings suspended because of application no:

Ref document number: 2657895

Country of ref document: DE

Format of ref document f/p: P

8120 Willingness to grant licences paragraph 23
AF Is addition to no.

Ref country code: DE

Ref document number: 2657895

Format of ref document f/p: P

8178 Suspension cancelled
8130 Withdrawal