JPS5573180A - Picture tracking system - Google Patents

Picture tracking system

Info

Publication number
JPS5573180A
JPS5573180A JP14607278A JP14607278A JPS5573180A JP S5573180 A JPS5573180 A JP S5573180A JP 14607278 A JP14607278 A JP 14607278A JP 14607278 A JP14607278 A JP 14607278A JP S5573180 A JPS5573180 A JP S5573180A
Authority
JP
Japan
Prior art keywords
target
signal
picture
detection
circuit
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
JP14607278A
Other languages
Japanese (ja)
Other versions
JPS5740711B2 (en
Inventor
Hidetoshi Matsuda
Keisuke Akamatsu
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.)
Nippon Avionics Co Ltd
Original Assignee
Nippon Avionics 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 Nippon Avionics Co Ltd filed Critical Nippon Avionics Co Ltd
Priority to JP14607278A priority Critical patent/JPS5573180A/en
Publication of JPS5573180A publication Critical patent/JPS5573180A/en
Publication of JPS5740711B2 publication Critical patent/JPS5740711B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Closed-Circuit Television Systems (AREA)

Abstract

PURPOSE: To secure the steady tracking through an accurate detection for the comparatively distant target by lessening the process amount of the target picture signal with installation of the electronic frame around the target picture and at the same time keeping the constant level for the target picture signal to facilitate the detection of the target signal.
CONSTITUTION: Target 1 to be tracked is photographed via TV camera 10, and the output signal is clamped 21 with the black level region kept constant. Then the rectangular electronic frame is provided around the target picture, and the picture signals within the frame are put into sample holding circuit 23 for holding. This held signal is supplied to level shift circuit 24 as the standard for the target detection, and the level shift is given to the output signal of circuit 21 in order to secure the coincidence between the input signal and the constant voltage levle of the target detection. The shifted signal then undergoes A/D conversion 31 and is supplied to picture memory 32 after amplification 38 to obtain the driving signal from the data of the target center. In this way, the comparatively distant target can be detected accurately, thus ensuring the steady tracking for the target.
COPYRIGHT: (C)1980,JPO&Japio
JP14607278A 1978-11-28 1978-11-28 Picture tracking system Granted JPS5573180A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14607278A JPS5573180A (en) 1978-11-28 1978-11-28 Picture tracking system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14607278A JPS5573180A (en) 1978-11-28 1978-11-28 Picture tracking system

Publications (2)

Publication Number Publication Date
JPS5573180A true JPS5573180A (en) 1980-06-02
JPS5740711B2 JPS5740711B2 (en) 1982-08-30

Family

ID=15399452

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14607278A Granted JPS5573180A (en) 1978-11-28 1978-11-28 Picture tracking system

Country Status (1)

Country Link
JP (1) JPS5573180A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57141124U (en) * 1981-02-27 1982-09-04
JPS57141142U (en) * 1981-02-27 1982-09-04
JPS6110372A (en) * 1984-06-25 1986-01-17 Canon Inc Automatic tracking device in camera
US4626908A (en) * 1982-11-22 1986-12-02 Tokyo Shibaura Denki Kabushiki Kaisha Tracking input device
JPH0730801A (en) * 1993-10-12 1995-01-31 Canon Inc Automatic focus adjustment device
JP2006184742A (en) * 2004-12-28 2006-07-13 Fujinon Corp Autofocus system

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6091814U (en) * 1983-11-30 1985-06-22 横浜ゴム株式会社 Operation transmission cable

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4866389A (en) * 1971-12-06 1973-09-11

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4866389A (en) * 1971-12-06 1973-09-11

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57141124U (en) * 1981-02-27 1982-09-04
JPS57141142U (en) * 1981-02-27 1982-09-04
JPH019697Y2 (en) * 1981-02-27 1989-03-17
US4626908A (en) * 1982-11-22 1986-12-02 Tokyo Shibaura Denki Kabushiki Kaisha Tracking input device
JPS6110372A (en) * 1984-06-25 1986-01-17 Canon Inc Automatic tracking device in camera
JPH0730801A (en) * 1993-10-12 1995-01-31 Canon Inc Automatic focus adjustment device
JP2006184742A (en) * 2004-12-28 2006-07-13 Fujinon Corp Autofocus system
JP4596246B2 (en) * 2004-12-28 2010-12-08 富士フイルム株式会社 Auto focus system

Also Published As

Publication number Publication date
JPS5740711B2 (en) 1982-08-30

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