WO2001017241A1 - Procede de reproduction simultanee d'images video numeriques issues de deux ou plusieurs cameras video differentes - Google Patents

Procede de reproduction simultanee d'images video numeriques issues de deux ou plusieurs cameras video differentes Download PDF

Info

Publication number
WO2001017241A1
WO2001017241A1 PCT/EP2000/007816 EP0007816W WO0117241A1 WO 2001017241 A1 WO2001017241 A1 WO 2001017241A1 EP 0007816 W EP0007816 W EP 0007816W WO 0117241 A1 WO0117241 A1 WO 0117241A1
Authority
WO
WIPO (PCT)
Prior art keywords
video
camera
images
cameras
video cameras
Prior art date
Application number
PCT/EP2000/007816
Other languages
German (de)
English (en)
Inventor
Matthias G. DÖRING
Markus Müller
Original Assignee
Geutebrück Gmbh & Co. Kg
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 Geutebrück Gmbh & Co. Kg filed Critical Geutebrück Gmbh & Co. Kg
Priority to AU74085/00A priority Critical patent/AU7408500A/en
Publication of WO2001017241A1 publication Critical patent/WO2001017241A1/fr

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
    • G08B13/19678—User interface
    • G08B13/19691—Signalling events for better perception by user, e.g. indicating alarms by making display brighter, adding text, creating a sound
    • G08B13/19693—Signalling events for better perception by user, e.g. indicating alarms by making display brighter, adding text, creating a sound using multiple video sources viewed on a single or compound screen
    • 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
    • G08B13/19639—Details of the system layout
    • G08B13/19641—Multiple cameras having overlapping views on a single scene
    • G08B13/19643—Multiple cameras having overlapping views on a single scene wherein the cameras play different roles, e.g. different resolution, different camera type, master-slave camera
    • 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
    • G08B13/19671—Addition of non-video data, i.e. metadata, to video stream
    • G08B13/19673—Addition of time stamp, i.e. time metadata, to video stream
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/765—Interface circuits between an apparatus for recording and another apparatus
    • H04N5/77—Interface circuits between an apparatus for recording and another apparatus between a recording apparatus and a television camera
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/765—Interface circuits between an apparatus for recording and another apparatus
    • H04N5/775—Interface circuits between an apparatus for recording and another apparatus between a recording apparatus and a television receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/91—Television signal processing therefor
    • H04N5/92—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback
    • H04N5/9201—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback involving the multiplexing of an additional signal and the video signal
    • H04N5/9205—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback involving the multiplexing of an additional signal and the video signal the additional signal being at least another television signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
    • H04N7/181—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a plurality of remote sources

Definitions

  • the invention relates to a method for the simultaneous playback of digitally stored video images in parallel in a video image recording device of two or more different video cameras with different recording rates in the respective video fields assigned to the individual video cameras.
  • VCR Video Code Division Multiple Access
  • Different requirements are usually placed on each of these video cameras. Therefore, they are often recorded at different recording rates (frames / second).
  • frames / second When displaying these images on a screen, it is possible to display several video windows in parallel in order to follow a certain process from the different camera perspectives. A new video image is always displayed alternately in the individual video windows in a conventional manner (“refresh”). If the video images of the individual video cameras have been recorded at different recording rates, an increasing time offset between the images assigned to the individual cameras can be seen during the parallel playback on the screen.
  • the video camera 1 records 1 image per second
  • the video camera 2 records 2 images per second.
  • an image from camera 1 is recorded every second from 9:00 a.m., that is to say images 1.1, 1.2, 1.3, 1.4 etc. one after the other.
  • camera 2 is removed 9:00 a.m. two pictures every second draws the pictures 2.1, 2.2, 2.3, 2.4, 2.5, 2.6, 2.7, 2.8 etc. one after the other.
  • FIG. 2 shows, the playback of the images from the two cameras 1 and 2 starts at the same time with the video images for 9:00 a.m.
  • the first playback window of the screen which is responsible for displaying the video images from camera 1
  • the video images 1.1, 1.2, 1.3, 1.4, 1.5, 1.6 etc. of camera 1 follow one after the other in the second playback window of the screen, which is used for the display of the video images of the camera 2 is responsible
  • the video images 2.1, 2.2, 2.3, 2.4, 2.5, 2.6 etc. also follow every second.
  • the invention has for its object to provide a method for the time-synchronous playback of digitally stored video images from video cameras with different recording rates, so that it is ensured at all times that all video images shown on the screen represent a process under consideration at the same time of recording.
  • this object is achieved in that one of the video cameras is selected as a "master" camera for temporal reference, that at any time during the retrieval of the stored video images of the various video cameras the time of the currently displayed video image of the "master” camera with the times of the saved video mobil that of all other video cameras is compared and that the video image of the other video cameras stored closest to the time of the video image of the "master” camera is always selected for display in the screen field assigned to the respective video camera.
  • the method according to the invention creates a "time lock" function which makes it possible to synchronize all the reproduced images of the various video cameras to the reproduced image of a selected video camera, namely the so-called "master” camera.
  • the time of the current image in the video window of the "master" camera is compared with the times of the stored images of all other video cameras to be displayed in a video window at any time during the query of the recorded images of the different video cameras. It will always be the one that follows
  • the method according to the invention thus ensures at all times that all of the video images shown represent a considered process at essentially the same time of recording.
  • the video images of the various video cameras are advantageously displayed in parallel on a single screen in several video windows.
  • the method according to the invention can be used particularly advantageously in the context of a monitoring system. the one in which a room or a room area is observed from different perspectives with the help of the video cameras arranged in different positions.
  • FIG. 1 shows the already explained example of a recording with two video cameras in a time diagram
  • FIG. 2 shows, in a time diagram for the same two-camera example, the reproduction of the images of these two cameras that takes place in accordance with the prior art
  • FIG. 3 shows, in a time diagram for the same two-camera example, the reproduction of the images of these two cameras, which is synchronized according to the method according to the invention
  • Figure 4 is a block diagram diagram for performing the method according to the invention.
  • FIG. 3 relates to the two-camera recording example according to FIG. 1.
  • the video images of two video cameras 1 and 2 are then recorded digitally.
  • Video camera 1 records 1 image per second
  • video camera 2 records 2 images per second.
  • an image from camera 1 is recorded every second from 9:00 a.m., that is to say images 1.1, 1.2, 1.3, 1.4 etc. one after the other.
  • camera 2 is removed 9:00 a.m. two images recorded every second, that is to say images 2.1, 2.2, 2.3, 2.4, 2.5, 2.6, 2.7, 2.8 etc. one after the other.
  • FIG. 1 an image from camera 1 is recorded every second from 9:00 a.m., that is to say images 1.1, 1.2, 1.3, 1.4 etc. one after the other.
  • camera 2 is removed 9:00 a.m. two images recorded every second, that is to say images 2.1, 2.2, 2.3, 2.4, 2.5, 2.6, 2.7, 2.8 etc. one after the other.
  • FIG. 1 shows
  • the method according to the invention starts for this example, the playback of the images of the two cameras 1 and 2 at the same time with the video images for 9:00 a.m.
  • the first playback Window of the screen which is responsible for the display of the video images of the camera 1
  • the video images 1.1, 1.2, 1.3, 1.4, 1.5, 1.6 etc. of the camera 1 which in the exemplary embodiment forms the "master" camera, one after the other.
  • the second display window of the screen which is responsible for the display of the video images of the camera 2
  • the video images 2.1, 2.3, 2.5, 2.7, etc. also follow every second. From FIG.
  • FIG. 4 shows a block diagram of a circuit for carrying out the method according to the invention.
  • a room area 3, in which processes are to be monitored from different perspectives, is monitored by two video cameras 1 and 2.
  • the images recorded by the two video cameras 1 and 2 are digitally recorded in parallel in a single video image recording device 4, called a recorder for short.
  • the images of the two cameras 1 and 2 recorded in the recorder 4 are separated and shown in parallel in two video windows 5 and 6 of a screen 7, the video window 5 being associated with the images from the camera 1 and the video window 6 with the images from the camera 2.
  • the video images of the two cameras 1 and 2 are recorded with different recording rates in the recorder 4, that is as in
  • One an algorithm-executing comparison and selection device 8 compares the time of the current image in the video window 7 of the camera 1 with the times of the ' images of the camera 2 stored in the recorder at any time during the query of the recorded images from the recorder 4 to the two cameras 1 and 2
  • the camera 1 forms the so-called "master" camera.
  • the comparison and selection device 8 continuously selects the image of the Kaera 2 that is closest in time to the master time and recorded in the recorder 4 for playback and thus causes it to be displayed in the video window 6 that is assigned to the camera 2.
  • images of the cameras 1 and 2 are therefore always shown which were recorded at essentially the same time and are therefore time-synchronous.

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Library & Information Science (AREA)
  • Human Computer Interaction (AREA)
  • Closed-Circuit Television Systems (AREA)
  • Television Signal Processing For Recording (AREA)

Abstract

L'objectif de la présente invention consiste en une reproduction synchrone d'images vidéo, enregistrées numériquement, de façon parallèle, dans un dispositif d'enregistrement d'images vidéo (4) et issues de deux ou plusieurs caméras vidéo différentes (1, 2), avec des vitesses d'enregistrement différentes. Cet objectif est atteint en ce qu'une des caméras vidéo est choisie en tant que caméra </= maître >/= (1) comme référence temporelle, en ce que lors de l'appel des images vidéo enregistrées, issues des caméras vidéo différentes, l'heure de l'image vidéo actuellement reproduite, issue de la caméra </= maître >/= , est comparée aux heures des images vidéo enregistrées, issues de toutes les autres caméras (2) et en ce que l'image vidéo enregistrée, temporellement postérieure, à l'heure de l'image vidéo de la caméra </= maître >/= , issue des autres caméras vidéo, est toujours choisie pour la reproduction dans un champ d'écran (5, 6) associé à chaque caméra vidéo. Le procédé selon l'invention peut s'appliquer à un système de surveillance dans lequel un espace ou une zone d'espace est observé à partir de différentes perspectives, à l'aide des caméras vidéo placées dans différentes positions.
PCT/EP2000/007816 1999-08-31 2000-08-09 Procede de reproduction simultanee d'images video numeriques issues de deux ou plusieurs cameras video differentes WO2001017241A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU74085/00A AU7408500A (en) 1999-08-31 2000-08-09 Method for the simultaneous reproduction of digitally stored video images from two or more different video cameras

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1999141321 DE19941321C2 (de) 1999-08-31 1999-08-31 Verfahren zur gleichzeitig abflaufenden Wiedergabe digital gespeicherter Videobilder zweier oder mehr verschiedener Videokameras
DE19941321.5 1999-08-31

Publications (1)

Publication Number Publication Date
WO2001017241A1 true WO2001017241A1 (fr) 2001-03-08

Family

ID=7920224

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2000/007816 WO2001017241A1 (fr) 1999-08-31 2000-08-09 Procede de reproduction simultanee d'images video numeriques issues de deux ou plusieurs cameras video differentes

Country Status (4)

Country Link
AU (1) AU7408500A (fr)
DE (1) DE19941321C2 (fr)
PL (1) PL353458A1 (fr)
WO (1) WO2001017241A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008023501B4 (de) * 2008-05-09 2011-04-14 Visumotion Gmbh Verfahren und Anordnung zur synchronen Aufzeichnung von mindestens zwei Videodatenströmen unterschiedlicher Formate

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0655869A2 (fr) * 1993-11-29 1995-05-31 Canon Kabushiki Kaisha Appareil de traitement d'images stéréoscopiques
US5652822A (en) * 1993-03-04 1997-07-29 Pioneer Electronic Corporation Video signal recording and reproducing apparatus
US5724475A (en) * 1995-05-18 1998-03-03 Kirsten; Jeff P. Compressed digital video reload and playback system
FR2757729A1 (fr) * 1996-12-25 1998-06-26 Ando Electric Dispositif d'enregistrement et de reproduction de signal

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5652822A (en) * 1993-03-04 1997-07-29 Pioneer Electronic Corporation Video signal recording and reproducing apparatus
EP0655869A2 (fr) * 1993-11-29 1995-05-31 Canon Kabushiki Kaisha Appareil de traitement d'images stéréoscopiques
US5724475A (en) * 1995-05-18 1998-03-03 Kirsten; Jeff P. Compressed digital video reload and playback system
FR2757729A1 (fr) * 1996-12-25 1998-06-26 Ando Electric Dispositif d'enregistrement et de reproduction de signal

Also Published As

Publication number Publication date
AU7408500A (en) 2001-03-26
DE19941321A1 (de) 2001-03-08
PL353458A1 (en) 2003-11-17
DE19941321C2 (de) 2003-12-04

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