JPS57105734A - Image pickup system by infrared rays - Google Patents

Image pickup system by infrared rays

Info

Publication number
JPS57105734A
JPS57105734A JP55184510A JP18451080A JPS57105734A JP S57105734 A JPS57105734 A JP S57105734A JP 55184510 A JP55184510 A JP 55184510A JP 18451080 A JP18451080 A JP 18451080A JP S57105734 A JPS57105734 A JP S57105734A
Authority
JP
Japan
Prior art keywords
infrared
converter
converted
signal
image pickup
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.)
Pending
Application number
JP55184510A
Other languages
Japanese (ja)
Inventor
Yoshinori Tsujino
Shoji Doi
Hiroyuki Ishizaki
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP55184510A priority Critical patent/JPS57105734A/en
Publication of JPS57105734A publication Critical patent/JPS57105734A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/30—Transforming light or analogous information into electric information
    • H04N5/33—Transforming infrared radiation

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Transforming Light Signals Into Electric Signals (AREA)

Abstract

PURPOSE:To eliminate the need for reference rays by correcting the deviation of the offset characteristics of each infrared detecting element by finding the mean value of outputs signals of infrared detecting elements which correspond to selected areas in an optical scanning range and by using the value as the reference signal of each infrared detecting element. CONSTITUTION:Infrared rays R radiated from an image pickup object 1 are made incident to an infrared detector 2 to be converted into an electric signal, which is amplified 3 and then converted into a digital signal by an A/D converter 4. The digital signal from the converter 4 is processed as prescribed by an arithmetic circuit 5 to store a reference signal in a memory 6. The output of the arithmetic circuit 5 is converted by a D/A converter 7 into an analog signal, which is inputted to a display device 8 to display an infrared image on its display screen 8a.
JP55184510A 1980-12-24 1980-12-24 Image pickup system by infrared rays Pending JPS57105734A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55184510A JPS57105734A (en) 1980-12-24 1980-12-24 Image pickup system by infrared rays

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55184510A JPS57105734A (en) 1980-12-24 1980-12-24 Image pickup system by infrared rays

Publications (1)

Publication Number Publication Date
JPS57105734A true JPS57105734A (en) 1982-07-01

Family

ID=16154449

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55184510A Pending JPS57105734A (en) 1980-12-24 1980-12-24 Image pickup system by infrared rays

Country Status (1)

Country Link
JP (1) JPS57105734A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04160864A (en) * 1990-10-24 1992-06-04 Nec Corp Method and device for image pickup
JPH07193753A (en) * 1993-12-24 1995-07-28 Nec Corp Method for compensating fixed pattern noise and infrared-ray image pickup device using the method

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53115214A (en) * 1977-03-14 1978-10-07 Dacom Inc Automatic lamp compensation circuit

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53115214A (en) * 1977-03-14 1978-10-07 Dacom Inc Automatic lamp compensation circuit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04160864A (en) * 1990-10-24 1992-06-04 Nec Corp Method and device for image pickup
JPH07193753A (en) * 1993-12-24 1995-07-28 Nec Corp Method for compensating fixed pattern noise and infrared-ray image pickup device using the method

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