JPS57129079A - Picture measuring device - Google Patents

Picture measuring device

Info

Publication number
JPS57129079A
JPS57129079A JP1394881A JP1394881A JPS57129079A JP S57129079 A JPS57129079 A JP S57129079A JP 1394881 A JP1394881 A JP 1394881A JP 1394881 A JP1394881 A JP 1394881A JP S57129079 A JPS57129079 A JP S57129079A
Authority
JP
Japan
Prior art keywords
counter
output
image pickup
pickup element
shift register
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
JP1394881A
Other languages
Japanese (ja)
Other versions
JPS6243122B2 (en
Inventor
Teruo Eino
Muneo Kawamura
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.)
Shimizu Construction Co Ltd
Original Assignee
Shimizu Construction 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 Shimizu Construction Co Ltd filed Critical Shimizu Construction Co Ltd
Priority to JP1394881A priority Critical patent/JPS57129079A/en
Publication of JPS57129079A publication Critical patent/JPS57129079A/en
Publication of JPS6243122B2 publication Critical patent/JPS6243122B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Length Measuring Devices By Optical Means (AREA)
  • Image Input (AREA)
  • Closed-Circuit Television Systems (AREA)

Abstract

PURPOSE: To make an analog signal processing circuit unnecessary and to get rid of a measuring error caused by time aging and a temperature change, etc. of electronic parts, by converting an output of a two-dimensional solid image pickup element to a digital signal directly, and processing it.
CONSTITUTION: This device is provided with a two-dimensional solid image pickup element 11, a clock pulse generating circuit 13 for driving this image pickup element, a counter 19 for counting a pulse sent out from this pulse generating circuit, a shift register 16 for storing an output of this counter, a comparator 20 for comparing an output of the counter 19 and contents of the register 16, and sending out a comparison signal only in the case when the output of the counter is larger than the contents stored in the register, and a processing device 21 for analyzing a picture in accordance with contents stored in the shift register. In this state, the shift register 16 loads an output of the counter 19 only in case when a video signal of the two-dimensional solid image pickup element 11 exceeds a prescribed threshold level, and also the comparison signal has been sent out from the comparator 20.
COPYRIGHT: (C)1982,JPO&Japio
JP1394881A 1981-02-02 1981-02-02 Picture measuring device Granted JPS57129079A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1394881A JPS57129079A (en) 1981-02-02 1981-02-02 Picture measuring device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1394881A JPS57129079A (en) 1981-02-02 1981-02-02 Picture measuring device

Publications (2)

Publication Number Publication Date
JPS57129079A true JPS57129079A (en) 1982-08-10
JPS6243122B2 JPS6243122B2 (en) 1987-09-11

Family

ID=11847424

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1394881A Granted JPS57129079A (en) 1981-02-02 1981-02-02 Picture measuring device

Country Status (1)

Country Link
JP (1) JPS57129079A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59142405A (en) * 1983-02-02 1984-08-15 Shimizu Constr Co Ltd Position detector of steel plate cell
JPS63128208A (en) * 1986-11-18 1988-05-31 Izumi Soken Eng:Kk Optical type automatic measuring instrument for displacement quantity

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50103505U (en) * 1974-01-28 1975-08-26

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50103505U (en) * 1974-01-28 1975-08-26

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59142405A (en) * 1983-02-02 1984-08-15 Shimizu Constr Co Ltd Position detector of steel plate cell
JPH0259922B2 (en) * 1983-02-02 1990-12-13 Shimizu Construction Co Ltd
JPS63128208A (en) * 1986-11-18 1988-05-31 Izumi Soken Eng:Kk Optical type automatic measuring instrument for displacement quantity
JPH0467885B2 (en) * 1986-11-18 1992-10-29 Izumi Soken Enjiniaringu Kk

Also Published As

Publication number Publication date
JPS6243122B2 (en) 1987-09-11

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