JPS57149944A - Measuring device for image pickup distortion - Google Patents

Measuring device for image pickup distortion

Info

Publication number
JPS57149944A
JPS57149944A JP56034872A JP3487281A JPS57149944A JP S57149944 A JPS57149944 A JP S57149944A JP 56034872 A JP56034872 A JP 56034872A JP 3487281 A JP3487281 A JP 3487281A JP S57149944 A JPS57149944 A JP S57149944A
Authority
JP
Japan
Prior art keywords
image pickup
pickup device
distortion
output
pattern
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
JP56034872A
Other languages
Japanese (ja)
Other versions
JPH0310896B2 (en
Inventor
Yoshito Narimatsu
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP56034872A priority Critical patent/JPS57149944A/en
Publication of JPS57149944A publication Critical patent/JPS57149944A/en
Publication of JPH0310896B2 publication Critical patent/JPH0310896B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Facsimile Heads (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
  • Facsimiles In General (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Testing Of Optical Devices Or Fibers (AREA)

Abstract

PURPOSE:To measure the distortion of an image pickup device precisely by using a turntable which turns the image pickup device precisely and a computer which processes a picture signal in combination in addition to a collimator and a chart. CONSTITUTION:The angle of an image pickup device 1 whose distortion is to be measured is read by a rotational angle measuring instrument 8 after setting at a prescribed angle by a turntable 7. The output of a line sensor 2 is processed through the A/D conversion of a processing circuit 9, whose output is inputted to a computer 10. In this constitution, a pattern 11 shown in the figure is fixed to a movable chart 5 and the output of the line sensor 2 is processed by the computer 10 to calculate picture element signals which correspond to the pattern 11. The output levels 16 of them are calculated to find image positions on respective lines of the pattern 1 with precision of about 1/10 picture element. Then, the table 7 is turned to left and right and the measurement is performed similarly. Thus, the distortion of the image pickup device is measured precisely.
JP56034872A 1981-03-11 1981-03-11 Measuring device for image pickup distortion Granted JPS57149944A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56034872A JPS57149944A (en) 1981-03-11 1981-03-11 Measuring device for image pickup distortion

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56034872A JPS57149944A (en) 1981-03-11 1981-03-11 Measuring device for image pickup distortion

Publications (2)

Publication Number Publication Date
JPS57149944A true JPS57149944A (en) 1982-09-16
JPH0310896B2 JPH0310896B2 (en) 1991-02-14

Family

ID=12426236

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56034872A Granted JPS57149944A (en) 1981-03-11 1981-03-11 Measuring device for image pickup distortion

Country Status (1)

Country Link
JP (1) JPS57149944A (en)

Also Published As

Publication number Publication date
JPH0310896B2 (en) 1991-02-14

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