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GB1279451A - Device for detecting change and motion in a given scene - Google Patents

Device for detecting change and motion in a given scene

Info

Publication number
GB1279451A
GB1279451A GB3301069A GB3301069A GB1279451A GB 1279451 A GB1279451 A GB 1279451A GB 3301069 A GB3301069 A GB 3301069A GB 3301069 A GB3301069 A GB 3301069A GB 1279451 A GB1279451 A GB 1279451A
Authority
GB
United Kingdom
Prior art keywords
scene
movement
motion
camera
storage tube
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.)
Expired
Application number
GB3301069A
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.)
Australian Government
Original Assignee
Australian Government
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 Australian Government filed Critical Australian Government
Priority to GB3301069A priority Critical patent/GB1279451A/en
Publication of GB1279451A publication Critical patent/GB1279451A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
    • G08B13/189—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems
    • G08B13/194—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems
    • G08B13/196—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems using television cameras
    • G08B13/19602—Image analysis to detect motion of the intruder, e.g. by frame subtraction
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
    • G08B13/189—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems
    • G08B13/194—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems
    • G08B13/196—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems using television cameras
    • G08B13/19602—Image analysis to detect motion of the intruder, e.g. by frame subtraction
    • G08B13/19606—Discriminating between target movement or movement in an area of interest and other non-signicative movements, e.g. target movements induced by camera shake or movements of pets, falling leaves, rotating fan
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
    • G08B13/189—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems
    • G08B13/194—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems
    • G08B13/196—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems using television cameras
    • G08B13/19665—Details related to the storage of video surveillance data
    • G08B13/19669—Event triggers storage or change of storage policy

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Multimedia (AREA)
  • Closed-Circuit Television Systems (AREA)

Abstract

1279451 Intruder alarms COMMONWEALTH OF AUSTRALIA 30 June 1969 33010/69 Heading G4N A device for detecting change and motion in a scene comprises a TV camera 1 (sensitive to light or infra-red) and a comparison rate divider 5 arranged to pass information from the camera 1 at predetermined intervals, which are a multiple of the time interval between successive scanning, to a storage tube 7 having means to provide a warning or recording of changes or motion in the given scene. As described, the divider 5 limits picture comparison to one frame in two up to ten and thus increases the apparent rate of movement of any object or person. The selected frames are displayed on a storage tube 7 of the barrier-grid or photo-conductive vidicon type having provision at 8 for monitoring the current into or out of the target. This current only occurs following a change in scene and is detected at 8, the result being stored at 9 and used to trigger a strobe generator 10 arranged to open a gate 11 which passes only signals from the part of the scene where most movement has occurred. Such signals due to movement are integrated at 12 and if of sufficient magnitude, pass a second threshold detector 13 and set off an alarm 14. The scanned area may be limited by means of a window generator 16 arranged to exclude regions (e.g. trees) having normal movement.
GB3301069A 1969-06-30 1969-06-30 Device for detecting change and motion in a given scene Expired GB1279451A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3301069A GB1279451A (en) 1969-06-30 1969-06-30 Device for detecting change and motion in a given scene

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3301069A GB1279451A (en) 1969-06-30 1969-06-30 Device for detecting change and motion in a given scene

Publications (1)

Publication Number Publication Date
GB1279451A true GB1279451A (en) 1972-06-28

Family

ID=10347331

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3301069A Expired GB1279451A (en) 1969-06-30 1969-06-30 Device for detecting change and motion in a given scene

Country Status (1)

Country Link
GB (1) GB1279451A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2934038A1 (en) * 1979-08-23 1981-03-26 Deutsche Forschungs- und Versuchsanstalt für Luft- und Raumfahrt eV, 5000 Köln Crack progress measuring device
DE3415685A1 (en) * 1984-04-27 1985-11-07 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt METHOD FOR DETECTING SCENE CHANGES IN FILMS AND VIDEO RECORDINGS AND FOR MONITORING OBJECTS BY VIDEO CAMERAS
WO1991015917A1 (en) * 1990-04-04 1991-10-17 Eastman Kodak Company Video trigger in a solid state motion analysis system
DE4309957C1 (en) * 1993-03-26 1994-07-14 Media Control Musik Medien Television signal recognition system
WO2008030168A1 (en) 2006-09-08 2008-03-13 Dick Holmen Detector and alarm system and power supply unit
CN102708655A (en) * 2012-06-15 2012-10-03 宁波普锐达物联科技有限公司 Firefighting access occupation monitoring alarming method and firefighting access occupation monitoring alarming system
CN103077612A (en) * 2012-12-25 2013-05-01 陕西科技大学 System and method for detecting road occupation of automotive vehicle on fire-fighting access

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2934038A1 (en) * 1979-08-23 1981-03-26 Deutsche Forschungs- und Versuchsanstalt für Luft- und Raumfahrt eV, 5000 Köln Crack progress measuring device
DE3415685A1 (en) * 1984-04-27 1985-11-07 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt METHOD FOR DETECTING SCENE CHANGES IN FILMS AND VIDEO RECORDINGS AND FOR MONITORING OBJECTS BY VIDEO CAMERAS
WO1991015917A1 (en) * 1990-04-04 1991-10-17 Eastman Kodak Company Video trigger in a solid state motion analysis system
DE4309957C1 (en) * 1993-03-26 1994-07-14 Media Control Musik Medien Television signal recognition system
WO2008030168A1 (en) 2006-09-08 2008-03-13 Dick Holmen Detector and alarm system and power supply unit
CN102708655A (en) * 2012-06-15 2012-10-03 宁波普锐达物联科技有限公司 Firefighting access occupation monitoring alarming method and firefighting access occupation monitoring alarming system
CN102708655B (en) * 2012-06-15 2014-03-26 宁波普锐达物联科技有限公司 Firefighting access occupation monitoring alarming method and firefighting access occupation monitoring alarming system
CN103077612A (en) * 2012-12-25 2013-05-01 陕西科技大学 System and method for detecting road occupation of automotive vehicle on fire-fighting access
CN103077612B (en) * 2012-12-25 2015-04-29 陕西科技大学 System and method for detecting road occupation of automotive vehicle on fire-fighting access

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee