GB8714563D0 - Reconstructing objects - Google Patents

Reconstructing objects

Info

Publication number
GB8714563D0
GB8714563D0 GB878714563A GB8714563A GB8714563D0 GB 8714563 D0 GB8714563 D0 GB 8714563D0 GB 878714563 A GB878714563 A GB 878714563A GB 8714563 A GB8714563 A GB 8714563A GB 8714563 D0 GB8714563 D0 GB 8714563D0
Authority
GB
United Kingdom
Prior art keywords
reconstructing objects
reconstructing
objects
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.)
Granted
Application number
GB878714563A
Other versions
GB2192120B (en
GB2192120A (en
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Publication of GB8714563D0 publication Critical patent/GB8714563D0/en
Publication of GB2192120A publication Critical patent/GB2192120A/en
Application granted granted Critical
Publication of GB2192120B publication Critical patent/GB2192120B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
    • G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
    • G01N23/06—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and measuring the absorption
    • G01N23/083—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and measuring the absorption the radiation being X-rays
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
    • G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
    • G01N23/06—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and measuring the absorption
    • G01N23/18—Investigating the presence of flaws defects or foreign matter
    • 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]
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2211/00—Image generation
    • G06T2211/40—Computed tomography
    • G06T2211/436—Limited angle

Landscapes

  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Theoretical Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Toxicology (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Mathematical Physics (AREA)
  • Pure & Applied Mathematics (AREA)
  • Algebra (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
GB8714563A 1986-06-23 1987-06-22 Reconstructing objects from limited-angle scannings in computerized tomography Expired - Fee Related GB2192120B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US87708386A 1986-06-23 1986-06-23

Publications (3)

Publication Number Publication Date
GB8714563D0 true GB8714563D0 (en) 1987-07-29
GB2192120A GB2192120A (en) 1987-12-31
GB2192120B GB2192120B (en) 1990-03-28

Family

ID=25369217

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8714563A Expired - Fee Related GB2192120B (en) 1986-06-23 1987-06-22 Reconstructing objects from limited-angle scannings in computerized tomography

Country Status (5)

Country Link
JP (1) JPS6325538A (en)
DE (1) DE3716988A1 (en)
FR (1) FR2600442A1 (en)
GB (1) GB2192120B (en)
IT (1) IT1204649B (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4888693A (en) * 1987-04-01 1989-12-19 General Electric Company Method to obtain object boundary information in limited-angle computerized tomography
US4920491A (en) * 1988-05-16 1990-04-24 General Electric Company Enhancement of image quality by utilization of a priori information
US5053958A (en) * 1988-06-06 1991-10-01 General Electric Company Method to reduce image reconstruction time in limited-angle ct systems including using initial reconstruction valves for measured projection data during each iteration
US4969110A (en) * 1988-08-01 1990-11-06 General Electric Company Method of using a priori information in computerized tomography
JP2592046Y2 (en) * 1991-01-21 1999-03-17 株式会社ケンウッド Spectrum analyzer
US6101236A (en) * 1998-10-02 2000-08-08 University Of Iowa Research Foundation Iterative method and apparatus for x-ray computed tomographic fluoroscopy
US7310403B2 (en) * 2006-03-20 2007-12-18 Moshe Ein-Gal Target reconstruction
CN101071111B (en) * 2006-05-08 2011-05-11 清华大学 Multi-vision aviation container safety inspection system and method
JP5011859B2 (en) * 2006-07-13 2012-08-29 株式会社島津製作所 Radiation tomography system
US8126108B2 (en) 2007-04-18 2012-02-28 Agency For Science, Technology And Research Method and apparatus for reorientated resconstruction of computed tomography images of planar objects
EP2922028A1 (en) * 2014-03-17 2015-09-23 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Exploiting residual projection data and reference data for processing data produced by imaging modality
EP3338082B1 (en) * 2015-08-19 2024-04-10 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Ultrasonic measurements for reconstructing an image of an object
WO2018128630A1 (en) * 2017-01-09 2018-07-12 Carestream Dental Technology Topco Limited System for the detection and display of metal obscured regions in cone beam ct

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4509075A (en) * 1981-06-15 1985-04-02 Oxbridge, Inc. Automatic optical inspection apparatus
US4506327A (en) * 1981-11-23 1985-03-19 General Electric Company Limited-angle imaging using multiple energy scanning
US4672650A (en) * 1984-02-16 1987-06-09 Kabushiki Kaisha Toshiba Tomographic testing apparatus

Also Published As

Publication number Publication date
IT1204649B (en) 1989-03-10
FR2600442A1 (en) 1987-12-24
GB2192120B (en) 1990-03-28
GB2192120A (en) 1987-12-31
DE3716988A1 (en) 1988-01-14
JPS6325538A (en) 1988-02-03
IT8720631A0 (en) 1987-05-22

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19920622