GB1583054A - Mechanicalelectrical signal processing system for use in analogue tomographic systems - Google Patents

Mechanicalelectrical signal processing system for use in analogue tomographic systems Download PDF

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Publication number
GB1583054A
GB1583054A GB36746/77A GB3674677A GB1583054A GB 1583054 A GB1583054 A GB 1583054A GB 36746/77 A GB36746/77 A GB 36746/77A GB 3674677 A GB3674677 A GB 3674677A GB 1583054 A GB1583054 A GB 1583054A
Authority
GB
United Kingdom
Prior art keywords
window
convolution
optical
profiles
mask
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
GB36746/77A
Other languages
English (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.)
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 GB1583054A publication Critical patent/GB1583054A/en
Expired legal-status Critical Current

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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 OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T12/00—Tomographic reconstruction from projections
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T12/00—Tomographic reconstruction from projections
    • G06T12/10—Image preprocessing, e.g. calibration, positioning of sources or scatter correction
    • 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
    • A61B6/52—Devices using data or image processing specially adapted for radiation diagnosis
    • A61B6/5205—Devices using data or image processing specially adapted for radiation diagnosis involving processing of raw data to produce diagnostic data
    • 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

  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Medical Informatics (AREA)
  • General Physics & Mathematics (AREA)
  • Pathology (AREA)
  • Molecular Biology (AREA)
  • Biophysics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Optics & Photonics (AREA)
  • Pulmonology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Image Analysis (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
GB36746/77A 1976-09-08 1977-09-02 Mechanicalelectrical signal processing system for use in analogue tomographic systems Expired GB1583054A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7609963A NL7609963A (nl) 1976-09-08 1976-09-08 Signaalverwerkend stelsel.

Publications (1)

Publication Number Publication Date
GB1583054A true GB1583054A (en) 1981-01-21

Family

ID=19826857

Family Applications (1)

Application Number Title Priority Date Filing Date
GB36746/77A Expired GB1583054A (en) 1976-09-08 1977-09-02 Mechanicalelectrical signal processing system for use in analogue tomographic systems

Country Status (11)

Country Link
US (1) US4200931A (https=)
JP (1) JPS5334488A (https=)
CA (1) CA1087759A (https=)
CH (1) CH625953A5 (https=)
DE (1) DE2738954C2 (https=)
FR (1) FR2364020A1 (https=)
GB (1) GB1583054A (https=)
IL (1) IL52900A (https=)
IT (1) IT1084744B (https=)
NL (1) NL7609963A (https=)
SE (1) SE7710047L (https=)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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.
WO1981002800A1 (en) * 1980-03-21 1981-10-01 University Patents Inc Transverse tomography with optical filtering
US4331877A (en) * 1980-03-21 1982-05-25 University Patents, Inc. Transverse tomography with optical filtering
US8476574B1 (en) 2011-03-31 2013-07-02 Mutoh Industries Ltd. Method of deconvolution of spectral data
CN105433973B (zh) * 2015-12-30 2018-09-18 沈阳东软医疗系统有限公司 Ct扫描设备、ct系统和控制过滤器组件的方法及装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3809873A (en) * 1971-06-28 1974-05-07 C Klahr Optical processor for convolution filtering
GB1478123A (en) * 1973-08-18 1977-06-29 Emi Ltd Tomography
US4066902A (en) * 1974-03-23 1978-01-03 Emi Limited Radiography with detector compensating means
NL7605254A (nl) 1976-05-17 1977-11-21 Optische Ind De Oude Delft Nv Beeldconstructie.
US4075483A (en) * 1976-07-12 1978-02-21 Raytheon Company Multiple masking imaging system
US4068306A (en) * 1976-07-12 1978-01-10 General Electric Co. X-ray data acquisition system and method for calibration

Also Published As

Publication number Publication date
DE2738954A1 (de) 1978-03-09
NL7609963A (nl) 1978-03-10
FR2364020A1 (fr) 1978-04-07
DE2738954C2 (de) 1985-02-28
IL52900A0 (en) 1977-11-30
IL52900A (en) 1980-03-31
SE7710047L (sv) 1978-03-09
CH625953A5 (https=) 1981-10-30
CA1087759A (en) 1980-10-14
IT1084744B (it) 1985-05-28
JPS5334488A (en) 1978-03-31
FR2364020B3 (https=) 1980-06-27
US4200931A (en) 1980-04-29

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee