WO2023285169A1 - Dispositif de surveillance doté d'une pluralité de caméras, procédé et programme informatique de surveillance - Google Patents

Dispositif de surveillance doté d'une pluralité de caméras, procédé et programme informatique de surveillance Download PDF

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Publication number
WO2023285169A1
WO2023285169A1 PCT/EP2022/068248 EP2022068248W WO2023285169A1 WO 2023285169 A1 WO2023285169 A1 WO 2023285169A1 EP 2022068248 W EP2022068248 W EP 2022068248W WO 2023285169 A1 WO2023285169 A1 WO 2023285169A1
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WO
WIPO (PCT)
Prior art keywords
cameras
area
monitoring
designed
control module
Prior art date
Application number
PCT/EP2022/068248
Other languages
German (de)
English (en)
Inventor
Christoph BURGER-SCHEIDLIN
Original Assignee
Robert Bosch Gmbh
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 Robert Bosch Gmbh filed Critical Robert Bosch Gmbh
Publication of WO2023285169A1 publication Critical patent/WO2023285169A1/fr

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Classifications

    • 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

  • a surveillance device with a plurality of cameras is proposed, the cameras each having a recording area and being designed to record surveillance data.
  • the recording areas form a subset of a surveillance area.
  • the cameras are designed and/or set up to move and/or shift their recording area in the monitoring area.
  • the monitoring of monitored areas is used in a wide variety of applications. Both in the private and commercial sector, for example to monitor a factory or a company building, and in the public sector, for example to monitor airports, train stations or public buildings.
  • cameras are often widely distributed over the entire surveillance area, with the cameras preferably being mobile, in particular PTZ cameras. By moving the cameras, for example to track a person, an area that was originally monitored is no longer monitored.
  • publication US 20180376074 A1 discloses a system for tracking moving objects in a scene.
  • the system provides a control unit for driving the PTZ camera to track the moving object.
  • the invention relates to a surveillance device with a plurality of cameras having the features of claim 1.
  • the invention also relates to a method for surveillance, a computer program and a storage medium. Preferred and/or advantageous embodiments result from the dependent claims, the description and the attached figures.
  • the monitoring device comprises a plurality of cameras, in particular at least four, preferably at least ten and in particular at least 100 cameras.
  • the cameras are preferably movable cameras, in particular swiveling cameras and/or PTZ cameras (Pan Tilt Zoom).
  • the cameras are arranged, for example, in a building or outside to monitor a surveillance area.
  • the monitoring device is designed, for example, for object recognition, person recognition, person and/or object tracking.
  • the monitoring device is preferably designed for use in the public sector, for example for monitoring an airport, a public building or an outdoor area.
  • the monitoring device is designed for use in a commercial environment, for example for monitoring a shop, shopping center, company building or multi-storey car park.
  • the cameras each have a recording area.
  • the recording area is, for example, the area that can be optically monitored by the camera and/or for which images and/or videos can be recorded.
  • the cameras are each designed to provide and/or record surveillance data for their recording area.
  • the monitoring data preferably includes images, videos and/or audio data.
  • the recording areas each form a subset of a monitoring area.
  • the surveillance area is the entire area of a building or an outdoor area that is to be monitored and/or recorded using the surveillance device and/or the cameras.
  • the recording areas recorded by the cameras of the monitoring device together form a monitored area.
  • the monitored area are thus in particular Monitoring data provided.
  • the monitored area also forms a subset of the monitored area, in particular the monitored area forms a real subset of the monitored area.
  • the cameras are designed and/or set up to be movable, pivotable and/or zoomable, for example as PTZ cameras.
  • the cameras are designed and/or set up to allow and/or enable shifting, movement, panning and/or zooming of the recording area.
  • the camera is panned, moved and/or camera parameters, such as zoom and/or focal length, are changed for this purpose.
  • shifting and/or moving a camera is possible independently of another camera.
  • the mobility of the cameras makes it possible to capture and/or record different sections and/or areas of the surveillance area with the cameras.
  • a change, deformation, enlargement and/or reduction of the monitored area is possible by shifting and/or moving the recording areas.
  • the monitoring device includes a control module.
  • the cameras each include a control module.
  • the control module is designed to control at least one of the cameras during and/or after a user-induced movement of one of the cameras, in particular one of the other cameras, and/or displacement of the recording area of one of the cameras, in order to move the recording area belonging to this controlled camera. move and/or change.
  • the control module is designed to control the at least one controlled camera in such a way that the monitored area obtained after the control satisfies a monitoring condition.
  • the control module is designed to change, compensate and/or adapt the change in the monitored area resulting from the user-induced movement by controlling at least one camera to move the associated recording area in such a way that the monitored area obtained after the control satisfies the monitoring conditions .
  • the monitoring condition is configurable, adjustable, and/or selectable from a set of selectable monitoring conditions.
  • the monitoring condition calls for maximizing the monitored area.
  • the monitoring condition requires that a predetermined or specifiable section of the monitored area must be monitored as a monitored area or that other areas are less relevant to the monitoring.
  • a surveillance condition may require that objects or persons of the original surveillance area must be in the surveillance area obtained after the activation.
  • the monitored area is rasterized with raster elements, the monitoring condition requiring, for example, the recording of specific raster elements.
  • the invention is based on the consideration that a user-induced movement, for example the pursuit of a person or the targeted viewing of a section by a user, leads to a change in the monitored area.
  • the change often does not meet desired requirements or quality standards, so that tracking and/or compensation by one of the other cameras is necessary.
  • the monitoring device thus ensures that after a user-induced change, other cameras follow, so that the resulting monitored area satisfies at least one monitoring condition.
  • An embodiment of the invention provides that the user-induced movement emanates from and/or is based on a first camera with a first recording area.
  • the camera that executes a user-induced movement can be referred to as the first camera with the first recording area.
  • the user-induced movement shifts and/or moves the first recording area within the surveillance area, so that a section of the surveillance area originally recorded by the first camera is no longer monitored and/or no longer forms a first recording area.
  • the portion no longer monitored by the first capture area is referred to as the surveillance area portion migrated from the first capture area.
  • the monitoring condition is formed, for example, that at least one of the cameras is controlled, from the first Recording area hiked surveillance area section record by one of the cameras.
  • a monitoring area map, an arrangement and/or distribution of the cameras, camera parameters and/or assembly parameters is/are provided to the control module.
  • the cameras are provided with the monitoring area map, the arrangement of the cameras, the camera parameters, in particular their own and/or the other cameras, and the assembly parameters.
  • the control module is designed to carry out, manage and/or plan the activation and/or the fulfillment of the monitoring condition based on the monitoring area map, the arrangement of the cameras, the camera and/or assembly parameters. For example, based on the monitoring area map and the knowledge of the arrangement of the cameras, the control module can select and/or control the camera for tracking and/or shifting its recording area.
  • the cameras each include a control module.
  • the control module of a camera is designed in particular to control its own camera after a user-induced movement and/or displacement of the recording area of another of the cameras.
  • a user-induced movement of another of the cameras is made available to the control modules of the cameras.
  • the monitoring area map, the arrangement of the cameras, the camera and mounting parameters are provided to the control modules of the cameras.
  • the cameras are each designed to communicate and/or provide, in particular to provide communication modules, a user-induced movement and/or a shifting of their recording area to the other cameras.
  • the communication modules are, for example, clouds and/or nodes of a data connection between the cameras of the monitoring device.
  • the first camera notifies the other cameras that it is performing a user-induced movement, for example that it is no longer recording a grid area, for example grid element F1, so that the other cameras based their information on this If necessary, can track the recording area, so that the corresponding grid area, for example Fl, is resumed if the monitoring of this area is required to meet the monitoring conditions.
  • the cameras are each designed to inform the other cameras and/or communication modules of a movement and/or shifting of their recording area caused and/or controlled by the control module.
  • the movement and/or shifting controlled by the control module can be communicated by the respective camera as a resultant moving and/or shifting induced by the user. In particular, this results in a dynamic system for monitoring the monitoring area with the condition that the monitoring condition is satisfied.
  • the cameras are each designed for object recognition and/or object detection.
  • the object recognition and/or detection is based on a neural network and/or machine learning algorithm.
  • Object recognition is used in particular to recognize stationary objects in the recording area.
  • the object recognition is applied in particular to the surveillance data, in particular images and/or videos.
  • object recognition conditions can be required in this way, for example for recognizing a specific type of object, a specific size, specific location and/or position of the object in the recording area.
  • the control module is designed, for example, to control the displacement and/or the movement based on the detected object or objects. For example, a recognized object will no longer be in the first recording area due to the user-induced movement, so that the control by the control module while complying with the monitoring condition requires the recording of the object that is no longer recorded by another camera.
  • a monitoring condition requires that the detected stationary objects remain in the monitored area, for example, that the cameras are controlled in such a way that the stationary objects detected before the user-induced movement return to the area after the control monitored area.
  • the stationary objects detected before the user-induced movement return to the area after the control monitored area.
  • stationary objects, pieces of furniture and/or facilities are used.
  • control module is designed to determine an object connection vector based on at least two recognized objects.
  • the control module is designed, for example, to control the cameras for movement and/or displacement based on the object connection vector, in particular using a scaling factor. For example, the user-induced movement based on the same object connection vector is communicated and/or provided to the other cameras.
  • control module is designed to determine and/or set a coordinate system based on at least three recognized objects.
  • the objects used for this purpose are preferably arranged in an edge area of the recording area of the user-induced moving camera, especially for determining the object connection vector.
  • the cameras are preferably tracked, moved and/or displaced on the basis of the determined and/or specified coordinate system.
  • control module is designed to use the detected objects in a peripheral area of the recording area of the user-induced moving camera.
  • control module draws on and/or uses object clusters as recognized objects.
  • An object cluster is understood to mean, in particular, a collection of the same or different objects in a section of the monitoring area and/or recording area.
  • a focal point or center point of the objects of the object cluster is used for further use, for example for determining the coordinate system and/or the object connection vector.
  • a further subject matter of the invention is a method for monitoring a surveillance area with a plurality of cameras.
  • the cameras each record a recording area and provide surveillance data.
  • the recording areas are each a subset of the Surveillance area, the union of the recording areas form a monitored area.
  • the cameras are designed to be movable, for example pivotable. By moving and/or panning, the recording area of the respective camera can be moved and/or shifted in the surveillance area. If one of the cameras performs a user-induced movement, for example by tracking a camera when tracking a person, at least one of the cameras is controlled to move and/or shift its recording area. The actuation for moving and/or shifting takes place in particular in such a way that the monitored area obtained in this way satisfies a monitoring condition.
  • a further subject matter of the invention is a computer program comprising instructions which cause the monitoring device to carry out the method for monitoring the monitored area.
  • the invention relates to a computer-readable storage medium on which the computer program is stored.
  • FIG. 1 shows an exemplary embodiment of a monitoring device
  • FIG. 2 shows a monitoring device with control based on static objects
  • FIG. 3 shows a monitoring device with activation based on a displacement vector
  • FIG. 4 shows a monitoring device with control based on an object-based coordinate system
  • FIG. 5 shows a monitoring device with control based on object clusters.
  • FIG. 1 shows an exemplary embodiment of a monitoring device 1 with a plurality of cameras 2a, b.
  • the monitoring device 1 is designed to monitor a monitoring area 3, the monitoring area 3 forming a stage with actors 4a, b.
  • the cameras 2a, b each have a recording area 5a, b, which together form a monitored area 6.
  • the monitored area 6 forms a subset of the monitored area 3.
  • the monitoring device 1 includes at least one control module, for example a central control module, or the cameras 2a, b each include their own control module.
  • the cameras 2a, b are movably arranged and/or set up such that their recording area 5a, b is displaceable, movable and/or movable.
  • the actor 4a moves according to the movement 7 in the surveillance area 3.
  • the camera 2a performs a user-induced movement 8, so that the recording area 5a shifts accordingly. Due to this user-induced movement, an area 9 will no longer be in the receiving area 5a.
  • a monitoring condition requires that this area 9 be recorded continuously.
  • the control module is designed to control the camera 2b to move its recording area 5b, in particular in the displacement direction 10, so that the area 9 is located in the recording area 5b when it falls out of the recording area 5a. The resulting monitored area then satisfies the monitoring condition.
  • control module is controlled in such a way that the missing area 9 is recorded directly by the camera 2b.
  • FIG. 2 shows an exemplary embodiment of a monitoring device 1 designed essentially according to FIG. 1.
  • Stationary objects 11a, b are used to control the camera 2b by the control module.
  • the recordings of the cameras 2a, b are examined for the presence of stationary objects 11a, b.
  • the user-induced movement 8 results in the object 11a, a bucket on the stage, moving out of the recording area 5a, with the object 11b, a flower, also moving out of the recording area 5a at a later point in time and further movement 8.
  • the control module is the camera 2b to be controlled in such a way that the object 11a, b is recorded in the recording area 5b and the monitoring condition is thus satisfied.
  • FIG. 3 shows an exemplary embodiment of a monitoring device 1, which is designed essentially in accordance with the previous exemplary embodiment.
  • the control module is designed to determine a displacement vector 12, the displacement vector 12 connecting the stationary objects 11a, b.
  • the control module is designed to carry out and/or define the shift based on the shift vector 12 . For improved execution and/or definition, FIG
  • a coordinate system 13 is determined based on 3 stationary objects 11a, b, c, which coordinate system is used by the control module to define and/or carry out the displacement of the recording area 5b.
  • a coordinate system 13 is determined based on 3 stationary objects 11a, b, c, which coordinate system is used by the control module to define and/or carry out the displacement of the recording area 5b.
  • Objects to object clusters 14a, b used, based on the object clusters 14a, b of the displacement vector 12 or the coordinate system 13 are determined.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Closed-Circuit Television Systems (AREA)

Abstract

L'invention concerne un dispositif de surveillance (1) avec une pluralité de caméras (2a, b), les caméras (2a, b) présentant chacune une zone d'enregistrement (5a, b) et étant conçues pour enregistrer des données de surveillance pour la zone d'enregistrement (5a, b), les zones d'enregistrement (5a, b) formant une partie d'une zone de surveillance (3) et les zones d'enregistrement (5a, b) enregistrées par les caméras (2a, b) formant ensemble une zone de surveillance (6), les caméras (2a, b) étant conçues de manière mobile et/ou étant configurées pour déplacer et/ou décaler la zone d'enregistrement (5a, b) dans la zone de surveillance (3), caractérisé par un module de commande, le module de commande étant conçu pour commander, en cas de mouvement (8) et/ou de déplacement de la zone d'enregistrement (5a, b) de l'une des caméras (2a, b) provoqué par l'utilisateur, au moins l'une des caméras (2a, b) et pour déplacer et/ou déplacer la zone d'enregistrement (5a, b) correspondante, le module de commande étant conçu pour commander la ou les caméras (2a, b) de telle sorte que la zone de surveillance (6) satisfasse à une condition de surveillance.
PCT/EP2022/068248 2021-07-16 2022-07-01 Dispositif de surveillance doté d'une pluralité de caméras, procédé et programme informatique de surveillance WO2023285169A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102021207641.6A DE102021207641A1 (de) 2021-07-16 2021-07-16 Überwachungsvorrichtung mit einer Mehrzahl an Kameras, Verfahren und Computerprogramm zur Überwachung
DE102021207641.6 2021-07-16

Publications (1)

Publication Number Publication Date
WO2023285169A1 true WO2023285169A1 (fr) 2023-01-19

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WO (1) WO2023285169A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003158664A (ja) * 2001-11-21 2003-05-30 Matsushita Electric Ind Co Ltd カメラ制御装置
JP2005117635A (ja) * 2003-09-16 2005-04-28 Fuji Photo Film Co Ltd カメラシステム、カメラ制御方法、及びプログラム
EP1713275A1 (fr) * 2004-02-03 2006-10-18 Matsushita Electric Industrial Co., Ltd. Systeme de surveillance et terminal a camera
US20090051770A1 (en) * 2007-08-21 2009-02-26 Sony Corporation Camera control method, camera control device, camera control program, and camera system
US20180376074A1 (en) 2017-06-21 2018-12-27 Axis Ab System and method for tracking moving objects in a scene

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2835792B1 (fr) 2013-08-07 2016-10-05 Axis AB Procédé et système de sélection de position et d'orientation d'une caméra de surveillance
JP6631619B2 (ja) 2015-03-27 2020-01-15 日本電気株式会社 映像監視システム及び映像監視方法
EP3793184A1 (fr) 2019-09-11 2021-03-17 EVS Broadcast Equipment SA Procédé de fonctionnement d'une caméra robotique et système de caméra automatique
EP3817371A1 (fr) 2019-10-28 2021-05-05 Axis AB Procédé et système de composition de matériel vidéo

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003158664A (ja) * 2001-11-21 2003-05-30 Matsushita Electric Ind Co Ltd カメラ制御装置
JP2005117635A (ja) * 2003-09-16 2005-04-28 Fuji Photo Film Co Ltd カメラシステム、カメラ制御方法、及びプログラム
EP1713275A1 (fr) * 2004-02-03 2006-10-18 Matsushita Electric Industrial Co., Ltd. Systeme de surveillance et terminal a camera
US20090051770A1 (en) * 2007-08-21 2009-02-26 Sony Corporation Camera control method, camera control device, camera control program, and camera system
US20180376074A1 (en) 2017-06-21 2018-12-27 Axis Ab System and method for tracking moving objects in a scene

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Publication number Publication date
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