JPS5481095A - Computer tomography device - Google Patents

Computer tomography device

Info

Publication number
JPS5481095A
JPS5481095A JP14817177A JP14817177A JPS5481095A JP S5481095 A JPS5481095 A JP S5481095A JP 14817177 A JP14817177 A JP 14817177A JP 14817177 A JP14817177 A JP 14817177A JP S5481095 A JPS5481095 A JP S5481095A
Authority
JP
Japan
Prior art keywords
calculation
memory
projection data
signals
converter
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
JP14817177A
Other languages
English (en)
Other versions
JPS5628536B2 (ja
Inventor
Shigeki Shibayama
Kazuhide Iwata
Nobuo Okuda
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP14817177A priority Critical patent/JPS5481095A/ja
Priority to US05/967,420 priority patent/US4231097A/en
Priority to GB7847666A priority patent/GB2010545B/en
Priority to NL7812022A priority patent/NL7812022A/xx
Priority to DE2853560A priority patent/DE2853560B2/de
Publication of JPS5481095A publication Critical patent/JPS5481095A/ja
Publication of JPS5628536B2 publication Critical patent/JPS5628536B2/ja
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
    • G06T11/005—Specific pre-processing for tomographic reconstruction, e.g. calibration, source positioning, rebinning, scatter correction, retrospective gating
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions
    • G06F17/10—Complex mathematical operations
    • G06F17/17—Function evaluation by approximation methods, e.g. inter- or extrapolation, smoothing, least mean square method
    • G06F17/175—Function evaluation by approximation methods, e.g. inter- or extrapolation, smoothing, least mean square method of multidimensional data
    • 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
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computational Mathematics (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Pure & Applied Mathematics (AREA)
  • Data Mining & Analysis (AREA)
  • Mathematical Physics (AREA)
  • Databases & Information Systems (AREA)
  • Software Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Algebra (AREA)
  • Image Processing (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Image Analysis (AREA)
  • Complex Calculations (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
  • Image Generation (AREA)
JP14817177A 1977-12-12 1977-12-12 Computer tomography device Granted JPS5481095A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP14817177A JPS5481095A (en) 1977-12-12 1977-12-12 Computer tomography device
US05/967,420 US4231097A (en) 1977-12-12 1978-12-07 Apparatus for calculating a plurality of interpolation values
GB7847666A GB2010545B (en) 1977-12-12 1978-12-08 Apparatus for calculating a plurality of interpolation values
NL7812022A NL7812022A (nl) 1977-12-12 1978-12-11 Inrichting voor het berekenen van een aantal interpola- tiewaarden.
DE2853560A DE2853560B2 (de) 1977-12-12 1978-12-12 Elektronische Schaltung zur Berechnung mehrerer Interpolationsgrößen bei der in der medizinischen Tomographie durchgeführten Bilderzeugung

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14817177A JPS5481095A (en) 1977-12-12 1977-12-12 Computer tomography device

Publications (2)

Publication Number Publication Date
JPS5481095A true JPS5481095A (en) 1979-06-28
JPS5628536B2 JPS5628536B2 (ja) 1981-07-02

Family

ID=15446826

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14817177A Granted JPS5481095A (en) 1977-12-12 1977-12-12 Computer tomography device

Country Status (5)

Country Link
US (1) US4231097A (ja)
JP (1) JPS5481095A (ja)
DE (1) DE2853560B2 (ja)
GB (1) GB2010545B (ja)
NL (1) NL7812022A (ja)

Families Citing this family (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4282578A (en) * 1980-03-17 1981-08-04 Burr-Brown Research Corporation System for linearizing non-linear transducer signals
DE3024716C2 (de) * 1980-06-30 1986-10-23 Dr. Johannes Heidenhain Gmbh, 8225 Traunreut Digitales Längen- oder Winkelmeßsystem
FR2486269B1 (fr) * 1980-07-04 1986-03-28 Thomson Csf Systeme de traitement et de memorisation de donnees numeriques, notamment pour tomodensitometre, et tomodensitometre comportant un tel systeme
CA1159957A (en) * 1980-07-30 1984-01-03 James M. Gessert Real time fill circuit
JPS57108681A (en) * 1980-11-03 1982-07-06 Yokogawa Hewlett Packard Ltd Scanning converter
US4471449A (en) * 1980-11-03 1984-09-11 Hewlett-Packard Company Scan converter system
US4468747A (en) * 1980-11-03 1984-08-28 Hewlett-Packard Company Scan converter system
JPS57208422A (en) * 1981-06-18 1982-12-21 Fuji Photo Film Co Ltd Hue judging device
US4590558A (en) * 1981-12-30 1986-05-20 General Electric Company Method and apparatus for removing objects from CT images
US4587621A (en) * 1982-03-08 1986-05-06 The Mead Corporation Device for electrical variable magnification of document image
US4532602A (en) * 1982-03-08 1985-07-30 The Mead Corporation Device for electrical variable magnification of document image
US4511882A (en) * 1982-07-02 1985-04-16 The Babcock & Wilcox Company Function generator
DE3225395A1 (de) * 1982-07-07 1984-01-12 Fried. Krupp Gmbh, 4300 Essen Digitaler ballistikrechner fuer ein feuerleitsystem einer rohrwaffe
US4528639A (en) * 1982-10-29 1985-07-09 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Method of and apparatus for generating an inerstitial point in a data stream having an even number of data points
US4570224A (en) * 1982-11-29 1986-02-11 Elscint, Inc. Combining rebinned and unrebinned parallel ray data with unequal lateral spacing to create tomograph images
JPS59218145A (ja) * 1983-05-26 1984-12-08 株式会社東芝 超音波検査装置
FR2548851B1 (fr) * 1983-07-07 1986-11-14 Electricite De France Procede et installation d'analyse et de restitution de signal a echantillonnage et interpolation
NL8304214A (nl) * 1983-12-07 1985-07-01 Philips Nv Werkwijze voor het korrigeren van foute waarden van monsters van een equidistant bemonsterd signaal en inrichting voor het uitvoeren van de werkwijze.
FR2573562B1 (fr) * 1984-11-21 1989-12-08 France Etat Memoire vive et circuit d'interpolation lineaire en comportant application
JPS61185256A (ja) * 1985-02-13 1986-08-18 株式会社日立メデイコ Ｘ線ｃｔ画像処理装置
US4689754A (en) * 1985-02-21 1987-08-25 The Perkin-Elmer Corporation Optimization apparatus and procedure
JP2592810B2 (ja) * 1986-09-30 1997-03-19 株式会社東芝 サンプルレート変換回路
US4876509A (en) * 1986-12-17 1989-10-24 Resonex, Inc. Image restoration process for magnetic resonance imaging resonance imaging
JPS63159983A (ja) * 1986-12-23 1988-07-02 Dainippon Screen Mfg Co Ltd ルツクアツプテ−ブルデ−タの生成方法および装置
US4859850A (en) * 1987-01-12 1989-08-22 Fuji Photo Film Co., Ltd. Irradiation field recognizing method, and method of adjusting image processing conditions using the same
US4884440A (en) * 1988-03-25 1989-12-05 The United States Of America As Represented By The Secretary Of The Air Force Process for the elimination of noise from data
DE4117117A1 (de) * 1991-05-25 1992-11-26 Hoehne Karl Heinz Prof Dr Dreidimensionale darstellung von raeumlichen strukturen
DE4238084A1 (en) * 1991-11-15 1993-05-19 Hewlett Packard Co Analogue measurement value converter for real=time transformation into engineering unit - uses high value binary number bits to address stored coefficients, and lower value bits to perform correction using coefficients
FR2728706A1 (fr) * 1994-12-21 1996-06-28 Philips Electronique Lab Circuit d'interpolation pour fonctions trigonometriques
GB2337837B (en) * 1995-02-23 2000-01-19 Sony Uk Ltd Data processing systems
US20040042020A1 (en) * 2002-08-29 2004-03-04 Vondran Gary L. Color space conversion
US20040103269A1 (en) * 2002-11-27 2004-05-27 Intel Corporation Processor context register mapping
US9904904B2 (en) * 2008-04-22 2018-02-27 Intuit Inc. Determining time histories for financial information

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS513143A (ja) * 1974-06-25 1976-01-12 Nippon Soken
JPS5144489A (ja) * 1974-07-20 1976-04-16 Emi Varian Ltd

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3725684A (en) * 1970-11-13 1973-04-03 R Panschow Digital/analog linear interpolator
US3720813A (en) * 1971-08-23 1973-03-13 Damon Corp Interpolative readout apparatus
US3748447A (en) * 1971-11-18 1973-07-24 Sperry Rand Corp Apparatus for performing a linear interpolation algorithm
DE2303182A1 (de) * 1973-01-23 1974-07-25 Siemens Ag Einrichtung zum steuern einer verbrennungskraftmaschine
US3905045A (en) * 1973-06-29 1975-09-09 Control Data Corp Apparatus for image processing
US4038551A (en) * 1973-04-25 1977-07-26 E M I Limited Circuit for signal data obtained from an axial tomographic scanning apparatus
US3840174A (en) * 1973-05-29 1974-10-08 Rca Corp Precision digital interpolator
DE2421330C3 (de) * 1974-05-02 1978-03-30 Siemens Ag, 1000 Berlin Und 8000 Muenchen Schaltungsanordnung zur numerischen Ermittlung des Funktionswertes einer Funktion mit n Parametern und Anwendung der Schaltungsanordnung
GB1505653A (en) * 1974-07-11 1978-03-30 Emi Ltd Radiography
GB1515307A (en) * 1974-07-20 1978-06-21 Emi Ltd Image reconstruction
DE2511231A1 (de) * 1975-03-14 1976-09-23 Philips Patentverwaltung Anordnung zur ermittlung der absorption einer strahlung in einer ebene eines koerpers
US4044240A (en) * 1975-11-28 1977-08-23 Picker Corporation Tomography system having an ultra high speed processing unit
US4042811A (en) * 1975-11-28 1977-08-16 Picker Corporation Tomography system having an ultrahigh-speed processing unit
DE2556012A1 (de) * 1975-12-12 1977-06-16 Philips Patentverwaltung Verfahren und anordnung zur ermittlung der raeumlichen verteilung einer strahlung in einer ebene eines koerpers
US4149248A (en) * 1975-12-23 1979-04-10 Varian Associates, Inc. Apparatus and method for reconstructing data
JPS6045442B2 (ja) * 1976-02-25 1985-10-09 豊田工機株式会社 直線補間パルス分配方式
US4135247A (en) * 1977-08-15 1979-01-16 Siemens Aktiengesellschaft Tomography signal processing system
US4136388A (en) * 1977-08-26 1979-01-23 U.S. Philips Corporation Data acquisition system for computed tomography

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS513143A (ja) * 1974-06-25 1976-01-12 Nippon Soken
JPS5144489A (ja) * 1974-07-20 1976-04-16 Emi Varian Ltd

Also Published As

Publication number Publication date
US4231097A (en) 1980-10-28
GB2010545B (en) 1982-03-03
DE2853560B2 (de) 1981-04-02
JPS5628536B2 (ja) 1981-07-02
DE2853560C3 (ja) 1987-12-03
NL7812022A (nl) 1979-06-14
DE2853560A1 (de) 1979-06-13
GB2010545A (en) 1979-06-27

Similar Documents

Publication Publication Date Title
JPS5481095A (en) Computer tomography device
FR2323145A1 (fr) Appareil et procede pour l'examen aux rayons x, notamment pour la detection d'objets en contrebande
EP0106267A3 (en) Apparatus for the diagnosis of body structures into which a gamma-emitting radioactive isotope has been introduced
JPS5361293A (en) Computer tomograph
GB2006590B (en) Device for supporting patient in panoramic x-ray radiography
JPS53110495A (en) Radiation tomograph ic device
JPS5234689A (en) Apparatus to obtain x-ray body axis tomogramic image
DE2964472D1 (en) Ultrasonic imaging apparatus and use thereof for medical ultrasonic diagnostics
DE2860677D1 (en) Diagnostic apparatus for dental x-raying
DE3780394D1 (de) Verfahren zum erzeugen eines roentgenschichtbildes eines untersuchungsbereiches und anordnung zur durchfuehrung des verfahrens.
JPS5424587A (en) X-ray unit
JPS53128994A (en) Ct scanner
JPS54100281A (en) Tomograph
JPS5289360A (en) Jam detector
JPS53114378A (en) Tomographic pickup unit by radiation
JPS56107183A (en) Radiant-type tomograph
JPS53108297A (en) X-ray tomograph device by computer operation
JPS52115682A (en) X-ray radiographic image taking apparatus
JPS54161289A (en) Analog tomographic pickup unit
JPS52104892A (en) Body axis tomography apparatus using x-ray
JPS5394786A (en) Tomographic diagnostic equipment by radiation
JPS5418293A (en) X-ray tomogram image acquisition device
JPS53123692A (en) X-ray tomograph by computer operation
JPS52129578A (en) Measuring device for radioactive concentration
JPS53139483A (en) Pickup system for tomographic image