JPS5648510A - Distance pattern measuring system by adverse convoluting method - Google Patents

Distance pattern measuring system by adverse convoluting method

Info

Publication number
JPS5648510A
JPS5648510A JP12402779A JP12402779A JPS5648510A JP S5648510 A JPS5648510 A JP S5648510A JP 12402779 A JP12402779 A JP 12402779A JP 12402779 A JP12402779 A JP 12402779A JP S5648510 A JPS5648510 A JP S5648510A
Authority
JP
Japan
Prior art keywords
cameras
distance
camera
adverse
subject
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
JP12402779A
Other languages
Japanese (ja)
Other versions
JPS5817404B2 (en
Inventor
Tomomasa Sato
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.)
National Institute of Advanced Industrial Science and Technology AIST
Original Assignee
Agency of Industrial Science and Technology
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 Agency of Industrial Science and Technology filed Critical Agency of Industrial Science and Technology
Priority to JP12402779A priority Critical patent/JPS5817404B2/en
Publication of JPS5648510A publication Critical patent/JPS5648510A/en
Publication of JPS5817404B2 publication Critical patent/JPS5817404B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Length Measuring Devices By Optical Means (AREA)
  • Measurement Of Optical Distance (AREA)
  • Closed-Circuit Television Systems (AREA)

Abstract

PURPOSE: To secure a sharp peak for the correlation curve and thus increasing the image resolution, by using the deconvolution process for measurement of the distance up to a subject by the two units of cameras.
CONSTITUTION: The subject 10 located at the position distant away from the lower and upper cameras 1 and 2 by the distances D and D' is located nearly in front of the camera 1. The cameras 1 and 2 are distributed with the up-down distance L secured. Owing to the difference of height between the two cameras, the shift τ adversely proportional to the distance D up to the subject 10 is caused between the two picture images. Thus the picture data of f2(x) and f1(X) are obtained from the upper and lower cameras 2 and 1, and then F2(ω) and F1(ω) are obtained by making said data pass through the Fourier conversion parts 3 and 4. Then the picture data given from the camera 2 is deconvoluted by the picture data from the camera 1 to obtain the shift between both picture images at the Fourier region. Thus G(ω) is obtained to receive an adverse conversion to obtain the curve. Thus the distance D can be obtained.
COPYRIGHT: (C)1981,JPO&Japio
JP12402779A 1979-09-28 1979-09-28 Distance pattern measurement method using deconvolution Expired JPS5817404B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12402779A JPS5817404B2 (en) 1979-09-28 1979-09-28 Distance pattern measurement method using deconvolution

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12402779A JPS5817404B2 (en) 1979-09-28 1979-09-28 Distance pattern measurement method using deconvolution

Publications (2)

Publication Number Publication Date
JPS5648510A true JPS5648510A (en) 1981-05-01
JPS5817404B2 JPS5817404B2 (en) 1983-04-07

Family

ID=14875213

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12402779A Expired JPS5817404B2 (en) 1979-09-28 1979-09-28 Distance pattern measurement method using deconvolution

Country Status (1)

Country Link
JP (1) JPS5817404B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008216127A (en) * 2007-03-06 2008-09-18 Konica Minolta Holdings Inc Distance image generation device, distance image generation method, and program
JP2008216126A (en) * 2007-03-06 2008-09-18 Konica Minolta Holdings Inc Distance image generating device, distance image generation method, and program
JP2016080598A (en) * 2014-10-20 2016-05-16 レーザーテック株式会社 Coordinate detection apparatus, inspection apparatus, and coordinate detection method
US9786057B2 (en) 2014-09-19 2017-10-10 Lasertec Coporation Inspection apparatus, coordinate detection apparatus, coordinate detection method, and wavefront aberration correction method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008216127A (en) * 2007-03-06 2008-09-18 Konica Minolta Holdings Inc Distance image generation device, distance image generation method, and program
JP2008216126A (en) * 2007-03-06 2008-09-18 Konica Minolta Holdings Inc Distance image generating device, distance image generation method, and program
US9786057B2 (en) 2014-09-19 2017-10-10 Lasertec Coporation Inspection apparatus, coordinate detection apparatus, coordinate detection method, and wavefront aberration correction method
JP2016080598A (en) * 2014-10-20 2016-05-16 レーザーテック株式会社 Coordinate detection apparatus, inspection apparatus, and coordinate detection method

Also Published As

Publication number Publication date
JPS5817404B2 (en) 1983-04-07

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