FR2271546A1 - Automatic parallax compensator for stereo map plotters - permits use of fixed raster sensors without needing a computer - Google Patents

Automatic parallax compensator for stereo map plotters - permits use of fixed raster sensors without needing a computer

Info

Publication number
FR2271546A1
FR2271546A1 FR7506105A FR7506105A FR2271546A1 FR 2271546 A1 FR2271546 A1 FR 2271546A1 FR 7506105 A FR7506105 A FR 7506105A FR 7506105 A FR7506105 A FR 7506105A FR 2271546 A1 FR2271546 A1 FR 2271546A1
Authority
FR
France
Prior art keywords
sensors
plotters
needing
computer
permits use
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
FR7506105A
Other languages
French (fr)
Other versions
FR2271546B1 (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.)
Jenoptik AG
Original Assignee
Carl Zeiss Jena GmbH
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 Carl Zeiss Jena GmbH filed Critical Carl Zeiss Jena GmbH
Publication of FR2271546A1 publication Critical patent/FR2271546A1/en
Application granted granted Critical
Publication of FR2271546B1 publication Critical patent/FR2271546B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K7/00—Modulating pulses with a continuously-variable modulating signal
    • H03K7/06—Frequency or rate modulation, i.e. PFM or PRM
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C11/00—Photogrammetry or videogrammetry, e.g. stereogrammetry; Photographic surveying
    • G01C11/04—Interpretation of pictures
    • G01C11/06—Interpretation of pictures by comparison of two or more pictures of the same area

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Image Processing (AREA)
  • Measurement Of Optical Distance (AREA)

Abstract

Two images are scanned by sensors connected to a common correlator through separate storage devices to determine the relative time displacement of two image signals. The sensors and the correlation are connected to a discriminator to analyse the error voltage produced by the correlator, whereby both sensors are controlled by a generator and the correlator produces the parallax signal by comparing the two image signals. The sensors are light-sensitive solid-state detectors, and the discriminator is connected to each sensor through a scan control unit and the storage device. The control unit is pref. a voltage-dependent oscillator which corrects the scan signals from the storage device in each case.
FR7506105A 1974-05-14 1975-02-27 Automatic parallax compensator for stereo map plotters - permits use of fixed raster sensors without needing a computer Granted FR2271546A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DD17848174A DD112686A1 (en) 1974-05-14 1974-05-14

Publications (2)

Publication Number Publication Date
FR2271546A1 true FR2271546A1 (en) 1975-12-12
FR2271546B1 FR2271546B1 (en) 1981-06-12

Family

ID=5495744

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7506105A Granted FR2271546A1 (en) 1974-05-14 1975-02-27 Automatic parallax compensator for stereo map plotters - permits use of fixed raster sensors without needing a computer

Country Status (4)

Country Link
CH (1) CH583896A5 (en)
DD (1) DD112686A1 (en)
DE (1) DE2506324A1 (en)
FR (1) FR2271546A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5385454A (en) * 1977-01-06 1978-07-27 Canon Inc Distance detecting method

Also Published As

Publication number Publication date
DE2506324A1 (en) 1975-11-27
DD112686A1 (en) 1975-04-20
CH583896A5 (en) 1977-01-14
FR2271546B1 (en) 1981-06-12

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Legal Events

Date Code Title Description
ST Notification of lapse