DE2753043C2 - - Google Patents

Info

Publication number
DE2753043C2
DE2753043C2 DE2753043A DE2753043A DE2753043C2 DE 2753043 C2 DE2753043 C2 DE 2753043C2 DE 2753043 A DE2753043 A DE 2753043A DE 2753043 A DE2753043 A DE 2753043A DE 2753043 C2 DE2753043 C2 DE 2753043C2
Authority
DE
Germany
Prior art keywords
function
image
projection
electrical signals
spatial frequency
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
DE2753043A
Other languages
German (de)
English (en)
Other versions
DE2753043A1 (de
Inventor
Hideki Tokio/Tokyo Jp Kohno
Hidemi Akikawa Jp Shiono
Shinji Hachioji Jp Yamamoto
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.)
Hitachi Healthcare Manufacturing Ltd
Original Assignee
Hitachi Medical Corp
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 Hitachi Medical Corp filed Critical Hitachi Medical Corp
Publication of DE2753043A1 publication Critical patent/DE2753043A1/de
Application granted granted Critical
Publication of DE2753043C2 publication Critical patent/DE2753043C2/de
Granted 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
    • 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
    • G06T2211/00—Image generation
    • G06T2211/40—Computed tomography
    • G06T2211/421—Filtered back projection [FBP]

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)
  • Image Analysis (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Medical Treatment And Welfare Office Work (AREA)
DE19772753043 1976-11-29 1977-11-28 Querschnittsbild-wiedergewinnungsverfahren Granted DE2753043A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14225676A JPS5367394A (en) 1976-11-29 1976-11-29 Tomographic reproducing method

Publications (2)

Publication Number Publication Date
DE2753043A1 DE2753043A1 (de) 1978-06-08
DE2753043C2 true DE2753043C2 (US08066781-20111129-C00013.png) 1987-06-19

Family

ID=15311080

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19772753043 Granted DE2753043A1 (de) 1976-11-29 1977-11-28 Querschnittsbild-wiedergewinnungsverfahren

Country Status (3)

Country Link
JP (1) JPS5367394A (US08066781-20111129-C00013.png)
DE (1) DE2753043A1 (US08066781-20111129-C00013.png)
GB (1) GB1587217A (US08066781-20111129-C00013.png)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5829797U (ja) * 1981-08-24 1983-02-26 不二サッシ株式会社 網戸
JPS5839998U (ja) * 1981-09-09 1983-03-16 不二サッシ株式会社 網戸

Family Cites Families (2)

* 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
DE2504560A1 (de) * 1973-04-25 1975-08-14 Emi Ltd System zur bestimmung der absorption einer strahlung

Also Published As

Publication number Publication date
JPS5367394A (en) 1978-06-15
GB1587217A (en) 1981-04-01
DE2753043A1 (de) 1978-06-08
JPS5533337B2 (US08066781-20111129-C00013.png) 1980-08-30

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Legal Events

Date Code Title Description
OAP Request for examination filed
OD Request for examination
D2 Grant after examination
8364 No opposition during term of opposition