IT1151463B - Ricostruzione in immagini bidimensionali di fette piane di oggetti da proiezioni di radiazione non assorbita e non dispersa - Google Patents

Ricostruzione in immagini bidimensionali di fette piane di oggetti da proiezioni di radiazione non assorbita e non dispersa

Info

Publication number
IT1151463B
IT1151463B IT24896/77A IT2489677A IT1151463B IT 1151463 B IT1151463 B IT 1151463B IT 24896/77 A IT24896/77 A IT 24896/77A IT 2489677 A IT2489677 A IT 2489677A IT 1151463 B IT1151463 B IT 1151463B
Authority
IT
Italy
Prior art keywords
reconstruction
absorbed
objects
dimensional images
dispersed radiation
Prior art date
Application number
IT24896/77A
Other languages
English (en)
Inventor
John Milan Pavkovich
Original Assignee
Varian Associates
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 filed Critical Varian Associates
Application granted granted Critical
Publication of IT1151463B publication Critical patent/IT1151463B/it

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)
  • Algebra (AREA)
  • Pulmonology (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Mathematical Physics (AREA)
  • Pure & Applied Mathematics (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
  • Image Processing (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Image Analysis (AREA)
  • Medical Treatment And Welfare Office Work (AREA)
IT24896/77A 1977-01-19 1977-06-21 Ricostruzione in immagini bidimensionali di fette piane di oggetti da proiezioni di radiazione non assorbita e non dispersa IT1151463B (it)

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
IT1151463B true IT1151463B (it) 1986-12-17

Family

ID=25059266

Family Applications (1)

Application Number Title Priority Date Filing Date
IT24896/77A IT1151463B (it) 1977-01-19 1977-06-21 Ricostruzione in immagini bidimensionali di fette piane di oggetti da proiezioni di radiazione non assorbita e non dispersa

Country Status (7)

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

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 (it) * 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

Family Cites Families (6)

* 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
GB1471531A (en) * 1973-04-25 1977-04-27 Emi Ltd Radiography
GB1478123A (en) * 1973-08-18 1977-06-29 Emi Ltd Tomography
JPS522186A (en) * 1974-11-29 1977-01-08 Univ Leland Stanford Junior Device for detecting and stopping divergent transmissive radiation and threeedimensional sectional camera device
GB1537487A (en) * 1975-03-18 1978-12-29 Emi Ltd Radiography
US4149247A (en) * 1975-12-23 1979-04-10 Varian Associates, Inc. Tomographic apparatus and method for reconstructing planar slices from non-absorbed and non-scattered radiation

Also Published As

Publication number Publication date
SE437763B (sv) 1985-03-18
JPS5396689A (en) 1978-08-24
CA1111575A (en) 1981-10-27
JPS6314983B2 (it) 1988-04-02
FR2378289B2 (it) 1983-08-19
SE7707270L (sv) 1978-07-20
NL7706873A (nl) 1978-07-21
FR2378289A2 (fr) 1978-08-18
DE2735437A1 (de) 1978-07-20

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