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GB2141848B - Scan converter apparatus - Google Patents

Scan converter apparatus

Info

Publication number
GB2141848B
GB2141848B GB08418007A GB8418007A GB2141848B GB 2141848 B GB2141848 B GB 2141848B GB 08418007 A GB08418007 A GB 08418007A GB 8418007 A GB8418007 A GB 8418007A GB 2141848 B GB2141848 B GB 2141848B
Authority
GB
United Kingdom
Prior art keywords
radial
values
interpolation
derive
along
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
GB08418007A
Other versions
GB8418007D0 (en
GB2141848A (en
Inventor
Steven C Leavitt
Hugh G Larsen
Barry F Hunt
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.)
HP Inc
Original Assignee
Hewlett Packard 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 Hewlett Packard Co filed Critical Hewlett Packard Co
Publication of GB8418007D0 publication Critical patent/GB8418007D0/en
Publication of GB2141848A publication Critical patent/GB2141848A/en
Application granted granted Critical
Publication of GB2141848B publication Critical patent/GB2141848B/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
    • G01S7/52017—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00 particularly adapted to short-range imaging
    • G01S7/52023—Details of receivers
    • G01S7/52044—Scan converters
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
    • G01S13/06—Systems determining position data of a target
    • G01S13/46—Indirect determination of position data
    • G01S2013/468—Indirect determination of position data by Triangulation, i.e. two antennas or two sensors determine separately the bearing, direction or angle to a target, whereby with the knowledge of the baseline length, the position data of the target is determined
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
    • G01S7/523—Details of pulse systems
    • G01S7/526—Receivers
    • G01S7/53—Means for transforming coordinates or for evaluating data, e.g. using computers
    • G01S7/531—Scan converters

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
  • Television Systems (AREA)

Abstract

Apparatus for interpolating data along radial lines so that it can be displayed at display points arranged in orthogonal rows and columns by recursively adding stored values to derive signals indicative of the radial position of each display point along the radial data lines and its angular position between the radial data lines. interpolation is done along each radial line to derive first and second intermediate interpolated values, and these values are interpolated so as to derive the final data value for the display point at its angular position. Alternatively, the intermediate interpolated values can be attained by angular interpolation and the final data value by radial interpolation.
GB08418007A 1980-11-03 1984-07-16 Scan converter apparatus Expired GB2141848B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US20374680A 1980-11-03 1980-11-03

Publications (3)

Publication Number Publication Date
GB8418007D0 GB8418007D0 (en) 1984-08-22
GB2141848A GB2141848A (en) 1985-01-03
GB2141848B true GB2141848B (en) 1985-10-02

Family

ID=22755153

Family Applications (5)

Application Number Title Priority Date Filing Date
GB8132991A Expired GB2089537B (en) 1980-11-03 1981-11-02 Scan converter apparatus
GB848418006A Pending GB8418006D0 (en) 1980-11-03 1984-07-16 Scan converter apparatus
GB08418007A Expired GB2141848B (en) 1980-11-03 1984-07-16 Scan converter apparatus
GB08432555A Expired GB2149541B (en) 1980-11-03 1984-12-21 Scan converter apparatus
GB08506834A Expired GB2153120B (en) 1980-11-03 1985-03-15 Scan converter apparatus

Family Applications Before (2)

Application Number Title Priority Date Filing Date
GB8132991A Expired GB2089537B (en) 1980-11-03 1981-11-02 Scan converter apparatus
GB848418006A Pending GB8418006D0 (en) 1980-11-03 1984-07-16 Scan converter apparatus

Family Applications After (2)

Application Number Title Priority Date Filing Date
GB08432555A Expired GB2149541B (en) 1980-11-03 1984-12-21 Scan converter apparatus
GB08506834A Expired GB2153120B (en) 1980-11-03 1985-03-15 Scan converter apparatus

Country Status (5)

Country Link
JP (1) JPS57108681A (en)
CA (1) CA1173966A (en)
DE (2) DE3143429A1 (en)
FR (1) FR2493649B1 (en)
GB (5) GB2089537B (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4468747A (en) * 1980-11-03 1984-08-28 Hewlett-Packard Company Scan converter system
JPS59218145A (en) * 1983-05-26 1984-12-08 株式会社東芝 Ultrasonic examining apparatus
JPS6041956A (en) * 1983-08-19 1985-03-05 株式会社東芝 Ultrasonic diagnostic apparatus
US4581636A (en) * 1984-04-02 1986-04-08 Advanced Technology Laboratories, Inc. Scan conversion apparatus and method
JPS6272341A (en) * 1985-09-26 1987-04-02 株式会社東芝 Ultrasonic diagnostic apparatus
FR2589265B1 (en) * 1985-10-28 1989-10-27 Descartes Paris V Universite R DIGITAL ECHOGRAPHIC IMAGE PROCESSOR, INTERPOLATING
FR2593009B1 (en) * 1986-01-10 1988-10-07 Thomson Csf METHOD FOR HOMOGENEIZING AN IMAGE FROM A CONVERSION OF COORDINATES AND DIGITAL IMAGE TRANSFORMER USING SUCH A METHOD
JPS63296734A (en) * 1987-05-29 1988-12-02 Yokogawa Medical Syst Ltd Digital scanning converter
JPS6488280A (en) * 1987-07-13 1989-04-03 Sperry Marine Inc Scan conversion method and apparatus
JP2606417B2 (en) * 1990-07-30 1997-05-07 松下電器産業株式会社 Ultrasound diagnostic equipment
DE4206139C2 (en) * 1992-02-28 1994-08-04 Schimmelpfennig Karl Heinz Process for the precise evaluation of tachograph diagrams
DE4223424A1 (en) * 1992-07-16 1994-01-20 Hell Ag Linotype Method and device for generating circular courses
US6063032A (en) * 1998-09-28 2000-05-16 Scimed Systems, Inc. Ultrasound imaging with zoom having independent processing channels
US7327309B2 (en) 2005-12-23 2008-02-05 Barco Orthogon Gmbh Radar scan converter and method for transforming
EP1964056A1 (en) * 2005-12-23 2008-09-03 Barco Orthogon GmbH Radar scan converter and method for transforming

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4002827A (en) * 1975-05-15 1977-01-11 General Electric Company Polar coordinate format to a cartesian coordinate format scan converter
US4174514A (en) * 1976-11-15 1979-11-13 Environmental Research Institute Of Michigan Parallel partitioned serial neighborhood processors
JPS53137691A (en) * 1977-05-07 1978-12-01 Toshiba Corp Sca nning conversion system
JPS6024429B2 (en) * 1977-08-15 1985-06-12 沖電気工業株式会社 Digital scan conversion method
JPS5481095A (en) * 1977-12-12 1979-06-28 Toshiba Corp Computer tomography device
US4241412A (en) * 1979-03-16 1980-12-23 Diasonics, Inc. Polar to cartesian mapping apparatus and method

Also Published As

Publication number Publication date
CA1173966A (en) 1984-09-04
JPS57108681A (en) 1982-07-06
GB2089537B (en) 1985-10-02
GB2153120B (en) 1986-01-29
DE3143429A1 (en) 1982-10-28
GB8506834D0 (en) 1985-04-17
GB8418007D0 (en) 1984-08-22
GB2141848A (en) 1985-01-03
DE3153416C2 (en) 1989-07-06
GB8418006D0 (en) 1984-08-22
FR2493649A1 (en) 1982-05-07
JPH0372295B2 (en) 1991-11-18
GB2089537A (en) 1982-06-23
GB2153120A (en) 1985-08-14
FR2493649B1 (en) 1989-04-28
GB2149541A (en) 1985-06-12
GB2149541B (en) 1986-02-05
GB8432555D0 (en) 1985-02-06
DE3143429C2 (en) 1988-09-01

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Legal Events

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

Effective date: 19961102