DE3066073D1 - Process and circuit for evaluation of stationary television pictures consisting of lines and frames used for detecting a brightness variation cansed by a moving object - Google Patents

Process and circuit for evaluation of stationary television pictures consisting of lines and frames used for detecting a brightness variation cansed by a moving object

Info

Publication number
DE3066073D1
DE3066073D1 DE8080101616T DE3066073T DE3066073D1 DE 3066073 D1 DE3066073 D1 DE 3066073D1 DE 8080101616 T DE8080101616 T DE 8080101616T DE 3066073 T DE3066073 T DE 3066073T DE 3066073 D1 DE3066073 D1 DE 3066073D1
Authority
DE
Germany
Prior art keywords
picture
video
comparator
stored
signal
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
DE8080101616T
Other languages
German (de)
Inventor
Sandor Dipl Ing Waldmann
Laszlo Veisz
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.)
HIRADASTECHNIKA SZOEVETKEZET
Original Assignee
HIRADASTECHNIKA SZOEVETKEZET
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 HIRADASTECHNIKA SZOEVETKEZET filed Critical HIRADASTECHNIKA SZOEVETKEZET
Application granted granted Critical
Publication of DE3066073D1 publication Critical patent/DE3066073D1/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
    • G08B13/19634—Electrical details of the system, e.g. component blocks for carrying out specific functions
    • 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
    • G08B13/19676—Temporary storage, e.g. cyclic memory, buffer storage on pre-alarm

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Multimedia (AREA)
  • Studio Circuits (AREA)
  • Electric Cable Installation (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
  • Television Signal Processing For Recording (AREA)

Abstract

1. Method for evaluating of stationary TV pictures consisting of lines and half-pictures in order to detect a change in the intensity of light on the movement of an object, wherein the video-signal (Vin ) is within an A/D-transmitter (7) digitalized and intermediately stored and a mask signal synchronized to the video-signal is provided, which signal is scanning the TV picture of the TV camera on horizontal and vertical stripes for the provision of defined windows of the picture, wherein the digital video-signals are logically connected to the mask signal and are stored in a store (8) and the content of the store is for evaluation compared within a comparator (9) with a momentary value, characterized in that the picture windows are scanned in half-pictures following timely to one another within vertical stripes corresponding to the vertical decomposition of the horizontal stripes, that by means of the A/D-transmitters (7) for the picture windows within the single vertical stripes digitalized video average values following to one another are provided in the direction of the deflection of the picture, that the digitalized average video values are stored in the store (8) and are delivered to the comparator (9) and that within the comparator the momentary digital average value is compared with the preceeding stored digital average value and is as the case may be indicated as a difference, if the level of the differential value is exceeding an evaluation threshold defined within the comparator (9).
DE8080101616T 1979-04-17 1980-03-26 Process and circuit for evaluation of stationary television pictures consisting of lines and frames used for detecting a brightness variation cansed by a moving object Expired DE3066073D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
HU79HI512A HU179193B (en) 1979-04-17 1979-04-17 Method and arrangement for digitizing,storing,comparising and evaulating tv pictures

Publications (1)

Publication Number Publication Date
DE3066073D1 true DE3066073D1 (en) 1984-02-16

Family

ID=10997241

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8080101616T Expired DE3066073D1 (en) 1979-04-17 1980-03-26 Process and circuit for evaluation of stationary television pictures consisting of lines and frames used for detecting a brightness variation cansed by a moving object

Country Status (4)

Country Link
EP (1) EP0017821B1 (en)
AT (1) ATE5834T1 (en)
DE (1) DE3066073D1 (en)
HU (1) HU179193B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56160183A (en) * 1980-05-09 1981-12-09 Hajime Sangyo Kk Method and device for monitoring
JPS6077271A (en) * 1983-10-03 1985-05-01 Fuji Xerox Co Ltd Picture file 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
DE3543515A1 (en) * 1985-12-10 1987-06-11 Strahlen Umweltforsch Gmbh METHOD FOR MEASURING THE MOTIONS AND CONFIGURATIONS OF BIOLOGICAL AND NON-BIOLOGICAL OBJECTS
FR2616251B1 (en) * 1987-06-05 1990-10-26 Bertin & Cie METHOD AND DEVICE FOR DETERMINING THE NUMBER OF PERSONS PRESENT IN A SPECIFIED SPACE
KR930011141B1 (en) * 1990-12-31 1993-11-24 주식회사 금성사 Motion detecting circuit of picture image signal
GB9609406D0 (en) * 1996-05-03 1996-07-10 Kelly Simon The "Pixxi" televisual surveillance alarm system

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2439159B1 (en) * 1974-08-14 1975-09-04 Peter 8000 Muenchen Schubert Security device for television pictures - digit content over picture matrix stores numbers and compares with next picture
DE2617112C3 (en) * 1976-04-17 1982-01-14 Robert Bosch Gmbh, 7000 Stuttgart Method for determining a movement or a change in the surveillance area of a television camera

Also Published As

Publication number Publication date
HU179193B (en) 1982-09-28
EP0017821A1 (en) 1980-10-29
EP0017821B1 (en) 1984-01-11
ATE5834T1 (en) 1984-01-15

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Legal Events

Date Code Title Description
8339 Ceased/non-payment of the annual fee