FR2397682A1 - Procede et dispositif pour la construction d'une image par tomographie - Google Patents

Procede et dispositif pour la construction d'une image par tomographie

Info

Publication number
FR2397682A1
FR2397682A1 FR7715060A FR7715060A FR2397682A1 FR 2397682 A1 FR2397682 A1 FR 2397682A1 FR 7715060 A FR7715060 A FR 7715060A FR 7715060 A FR7715060 A FR 7715060A FR 2397682 A1 FR2397682 A1 FR 2397682A1
Authority
FR
France
Prior art keywords
tomography
construction
image
tomogram
profiles
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
FR7715060A
Other languages
English (en)
Other versions
FR2397682B1 (fr
Inventor
Ronald Jan Geluk
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.)
Optische Industrie de Oude Delft NV
Original Assignee
Optische Industrie de Oude Delft NV
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 Optische Industrie de Oude Delft NV filed Critical Optische Industrie de Oude Delft NV
Publication of FR2397682A1 publication Critical patent/FR2397682A1/fr
Application granted granted Critical
Publication of FR2397682B1 publication Critical patent/FR2397682B1/fr
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
    • A61B6/42—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment with arrangements for detecting radiation specially adapted for radiation diagnosis
    • A61B6/4208—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment with arrangements for detecting radiation specially adapted for radiation diagnosis characterised by using a particular type of detector
    • A61B6/4225—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment with arrangements for detecting radiation specially adapted for radiation diagnosis characterised by using a particular type of detector using image intensifiers
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06E—OPTICAL COMPUTING DEVICES; COMPUTING DEVICES USING OTHER RADIATIONS WITH SIMILAR PROPERTIES
    • G06E3/00—Devices not provided for in group G06E1/00, e.g. for processing analogue or hybrid data
    • G06E3/001—Analogue devices in which mathematical operations are carried out with the aid of optical or electro-optical elements
    • 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

Abstract

On construit au moins un tomogramme à partir d'un certain nombre de profils au moyen d'une rétro-projection. On élimine l'effet d'étalement des points grâce à une convolution analogique avec une fonction appropriée. Application par exemple, à la tomographie d'un patient 1.
FR7715060A 1976-05-17 1977-05-17 Procede et dispositif pour la construction d'une image par tomographie Expired FR2397682B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7605254A NL7605254A (nl) 1976-05-17 1976-05-17 Beeldconstructie.

Publications (2)

Publication Number Publication Date
FR2397682A1 true FR2397682A1 (fr) 1979-02-09
FR2397682B1 FR2397682B1 (fr) 1986-08-01

Family

ID=19826211

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7715060A Expired FR2397682B1 (fr) 1976-05-17 1977-05-17 Procede et dispositif pour la construction d'une image par tomographie

Country Status (11)

Country Link
US (1) US4173720A (fr)
JP (1) JPS6016245B2 (fr)
CA (1) CA1109971A (fr)
CH (1) CH631264A5 (fr)
DE (1) DE2720994C2 (fr)
FR (1) FR2397682B1 (fr)
GB (1) GB1568158A (fr)
IL (1) IL52082A (fr)
IT (1) IT1083102B (fr)
NL (1) NL7605254A (fr)
SE (1) SE424044B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2496934A1 (fr) * 1980-12-18 1982-06-25 Thomson Csf Appareil de tomographie axiale transverse a calculateur analogique

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7609963A (nl) 1976-09-08 1978-03-10 Optische Ind De Oude Delft Nv Signaalverwerkend stelsel.
NL7611419A (nl) 1976-10-15 1978-04-18 Optische Ind De Oude Delft Nv Inrichting voor het uitlezen en verwerken van in- formatie vervat in beeldkaders, zoals gevormd door het achtereenvolgens vanuit meerdere rich- tingen met een in hoofdzaak platte bundel van kortgolvige straling, doorstralen van een object.
JPS54130891A (en) * 1978-04-03 1979-10-11 Agency Of Ind Science & Technol Tomograph using analogue picture memory
NL7804881A (nl) * 1978-05-05 1979-11-07 Optische Ind De Oude Delft Nv Werkwijze en inrichting voor het elektro-optisch convo- lueren van een eendimensionaal signaal.
EP0047780A1 (fr) * 1980-03-21 1982-03-24 University Patents, Inc. Tomographie transversale avec filtrage optique
JPS57161852A (en) * 1981-03-31 1982-10-05 Yokogawa Hokushin Electric Corp Image reconstituting device
NL8102872A (nl) * 1981-06-15 1983-01-03 Optische Ind De Oude Delft Nv Werkwijze en inrichting voor het vormen van tomografiebeelden.
US4635197A (en) * 1983-12-29 1987-01-06 Shell Oil Company High resolution tomographic imaging method
DE3422144A1 (de) * 1984-06-14 1985-12-19 Josef Prof. Dr. 6900 Heidelberg Bille Geraet zur darstellung flaechenhafter bereiche des menschlichen auges
US4750148A (en) * 1986-06-03 1988-06-07 The United States Of America As Represented By The Secretary Of The Air Force Optical Gaussian convolvers
JP2002540870A (ja) * 1999-03-30 2002-12-03 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ 時間平均モーメントを導出する方法及びシステム
US6224284B1 (en) 1999-10-12 2001-05-01 Dri Mark Products Incorporated Metallic ink composition for wick type writing instruments
JP4508789B2 (ja) * 2004-09-07 2010-07-21 キヤノン株式会社 Ｘ線撮影装置
JP2008073208A (ja) * 2006-09-21 2008-04-03 Konica Minolta Medical & Graphic Inc 画像処理装置及び画像処理方法

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7513855A (nl) * 1974-11-29 1976-06-01 Univ Leland Stanford Junior Positiegevoelige detector voor roentgenstralen of gammastralen en 3-d-tomografie, die deze detector gebruikt.

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE693374C (de) * 1938-06-27 1940-07-12 C H F Mueller Akt Ges Verfahren zur Herstellung von Koerperschnittbildern mittels Roentgenstrahlen
DE2017441A1 (de) * 1970-04-11 1971-10-28 Siemens Ag Einrichtung zur Anfertigung von röntgenologischen Körper-Querschnittsaufnahmen
DE2318656C3 (de) * 1973-04-13 1981-01-29 Philips Patentverwaltung Gmbh, 2000 Hamburg Röntgen-Schichtaufnahmegerät mit einer Videosignale liefernden Bildaufnahmevorrichtung, mit einer Bildspeichervorrichtung und einer Bildspeicherröhre
US4023036A (en) * 1975-06-16 1977-05-10 University Patents, Inc. Apparatus and method for transverse tomography

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7513855A (nl) * 1974-11-29 1976-06-01 Univ Leland Stanford Junior Positiegevoelige detector voor roentgenstralen of gammastralen en 3-d-tomografie, die deze detector gebruikt.

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
EXBK/71 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2496934A1 (fr) * 1980-12-18 1982-06-25 Thomson Csf Appareil de tomographie axiale transverse a calculateur analogique

Also Published As

Publication number Publication date
SE424044B (sv) 1982-06-28
FR2397682B1 (fr) 1986-08-01
IT1083102B (it) 1985-05-21
JPS6016245B2 (ja) 1985-04-24
DE2720994C2 (de) 1983-10-20
SE7705728L (sv) 1977-11-18
CH631264A5 (de) 1982-07-30
CA1109971A (fr) 1981-09-29
DE2720994A1 (de) 1977-12-01
IL52082A0 (en) 1977-07-31
US4173720A (en) 1979-11-06
GB1568158A (en) 1980-05-29
NL7605254A (nl) 1977-11-21
JPS52140286A (en) 1977-11-22
IL52082A (en) 1979-11-30

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Legal Events

Date Code Title Description
ST Notification of lapse