JPS56126392A - Picture tracking device - Google Patents

Picture tracking device

Info

Publication number
JPS56126392A
JPS56126392A JP2991480A JP2991480A JPS56126392A JP S56126392 A JPS56126392 A JP S56126392A JP 2991480 A JP2991480 A JP 2991480A JP 2991480 A JP2991480 A JP 2991480A JP S56126392 A JPS56126392 A JP S56126392A
Authority
JP
Japan
Prior art keywords
value
circuit
video signal
mean value
quantized
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
JP2991480A
Other languages
Japanese (ja)
Other versions
JPS6033353B2 (en
Inventor
Yukinobu Nishimura
Hikari Matsuda
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP2991480A priority Critical patent/JPS6033353B2/en
Publication of JPS56126392A publication Critical patent/JPS56126392A/en
Publication of JPS6033353B2 publication Critical patent/JPS6033353B2/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
    • G01S3/78—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using electromagnetic waves other than radio waves
    • G01S3/782—Systems for determining direction or deviation from predetermined direction
    • G01S3/785—Systems for determining direction or deviation from predetermined direction using adjustment of orientation of directivity characteristics of a detector or detector system to give a desired condition of signal derived from that detector or detector system
    • G01S3/786—Systems for determining direction or deviation from predetermined direction using adjustment of orientation of directivity characteristics of a detector or detector system to give a desired condition of signal derived from that detector or detector system the desired condition being maintained automatically
    • G01S3/7864—T.V. type tracking systems

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Closed-Circuit Television Systems (AREA)

Abstract

PURPOSE:To enhance the following performance, by setting the intermediate value between the mean value and the minimum value of the video signal within a processing region as the threshold value and at the same time setting the intermediate value between the 2nd mean value obtained newly for the signals under the 1st threshold value and the minimum value respectively. CONSTITUTION:The A-D converter 19 quantizes the analog video signal supplied from the pickup device 12. The picture memory circuit 20 stores the quantized video signal through a circuit in the region designated by the processing region setting circuit 15. The mean value calculating circuit 21 uses the signal of the circuit 20 as an input to obtain the mean value AVE1 of the video signal as well as the mean value AVE2 of the video signal less than the threshold value. The MAX/MIN value detecting circuit 22 detects both the MIN value VMIN and the MAX value VMAX of the video signal, and the ALU circuit 23 performs these arithmetic operations to obtain the threshold values VTH1 and VTH2. the voltage comparator 24 compares the quantized video signal quantized in the above-mentioned processing region and the value VTH2 obtained at the ALU circuit 23. Thus the target signal can be extracted.
JP2991480A 1980-03-10 1980-03-10 image tracking device Expired JPS6033353B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2991480A JPS6033353B2 (en) 1980-03-10 1980-03-10 image tracking device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2991480A JPS6033353B2 (en) 1980-03-10 1980-03-10 image tracking device

Publications (2)

Publication Number Publication Date
JPS56126392A true JPS56126392A (en) 1981-10-03
JPS6033353B2 JPS6033353B2 (en) 1985-08-02

Family

ID=12289252

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2991480A Expired JPS6033353B2 (en) 1980-03-10 1980-03-10 image tracking device

Country Status (1)

Country Link
JP (1) JPS6033353B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60250317A (en) * 1984-05-28 1985-12-11 Canon Inc Automatic tracking device of camera
JPS60250318A (en) * 1984-05-28 1985-12-11 Canon Inc Automatic tracking device of camera
JPS61289771A (en) * 1985-06-18 1986-12-19 Matsushita Electric Ind Co Ltd Photographing device
JPS6290032A (en) * 1985-10-16 1987-04-24 Amada Co Ltd Binarization circuit for picture signal

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60250317A (en) * 1984-05-28 1985-12-11 Canon Inc Automatic tracking device of camera
JPS60250318A (en) * 1984-05-28 1985-12-11 Canon Inc Automatic tracking device of camera
JPS61289771A (en) * 1985-06-18 1986-12-19 Matsushita Electric Ind Co Ltd Photographing device
JPS6290032A (en) * 1985-10-16 1987-04-24 Amada Co Ltd Binarization circuit for picture signal

Also Published As

Publication number Publication date
JPS6033353B2 (en) 1985-08-02

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