WO2001045415A1 - Improvements in or relating to security camera systems - Google Patents

Improvements in or relating to security camera systems Download PDF

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Publication number
WO2001045415A1
WO2001045415A1 PCT/GB2000/004847 GB0004847W WO0145415A1 WO 2001045415 A1 WO2001045415 A1 WO 2001045415A1 GB 0004847 W GB0004847 W GB 0004847W WO 0145415 A1 WO0145415 A1 WO 0145415A1
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WO
WIPO (PCT)
Prior art keywords
image
target
camera
displayed
cameras
Prior art date
Application number
PCT/GB2000/004847
Other languages
French (fr)
Inventor
Patricia Roberts
Carl Stennett
Chris Harris
Ken King
Original Assignee
Roke Manor Research Limited
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 Roke Manor Research Limited filed Critical Roke Manor Research Limited
Priority to US10/149,973 priority Critical patent/US7295228B2/en
Priority to AT00985597T priority patent/ATE247361T1/en
Priority to EP00985597A priority patent/EP1245115B1/en
Priority to DE60004568T priority patent/DE60004568D1/en
Publication of WO2001045415A1 publication Critical patent/WO2001045415A1/en

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
    • G08B13/19639—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
    • G08B13/19602—Image analysis to detect motion of the intruder, e.g. by frame subtraction
    • G08B13/19608—Tracking movement of a target, e.g. by detecting an object predefined as a target, using target direction and or velocity to predict its new position
    • 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
    • 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

  • This invention relates to security camera systems and more especially but not exclusively it relates to camera systems of the kind used in shopping precincts or urban centres to provide video surveillance.
  • Camera systems providing video surveillance are in common use and may comprise a large number of cameras in order to provide adequate video surveillance of a prescribed area. If an incident occurs, security staff in 'closed circuit television' (CCTV) control rooms, will attempt to keep a person involved in the incident, and who might be making haste to leave the scene, within the field of view. This might involve switching between cameras, as the person leaves the field of view of one camera and enters the field of view of another camera or cameras, so that the camera used is always the one which affords the best view of the person being observed. In practice, this can be difficult, requiring highly trained staff who are familiar with the camera layout on a particular site. It is therefore all too easy to lose track of a person, even on a site having good camera coverage, and this may result in the loss of vital evidence, since video surveillance data used for prosecution is typically required to be continuous in time.
  • CCTV circuit television'
  • a security camera system comprising a plurality of video cameras, an image display monitor, a user control and camera selector means; wherein a target of interest can be observed by a first video camera and an image of said target can be displayed on the monitor; wherein the cameras images in combination can provide a predetermined overall area of coverage, each two cameras providing adjacent areas of coverage being operable to provide overlap image portions at transition regions of a displayed image; wherein a target of interest may be observed as an image on the monitor, wherein, upon movement of the target to a transition region, the camera selection means is operable to select a second camera whereby to maintain target image continuity.
  • the user control may comprise a mouse or the like device to control a cursor which is used to indicate when the target has moved to an image transition region.
  • a touch sensitive screen may be used to indicate when the target has moved to an image transition region.
  • the user control may be used to select a 'button' region displayed by the image display monitor, from a plurality of such regions which are arranged to surround an image displayed, the 'button' region selected indicating an image edge region of a currently displayed image approached by a target, in dependence upon which 'button' region selection, video signals from another of the video cameras are used thereby to maintain target display continuity by the monitor.
  • the user control may be used to select a transition region displayed by the image display monitor, from a plurality of such regions which are arranged to surround an image displayed, and which are also arranged within the image, the transition region selected indicating an image region of a currently displayed image approached by a target, in dependence upon which transition region selection, video signals from another of the video cameras are used thereby to maintain target display continuity by the monitor.
  • the user control includes a CPU, which is operable to store data including, in respect of each camera, the pixel positions of the lines at which transitions occur, and the identity of the camera to be selected at that transition.
  • the data stored in the CPU may include, for example, in respect of each camera: image centre data, focal length data, and distortion parameters.
  • At least some of the cameras may be fixed and /or at least some of the cameras may be pan-tilt-zoom (PTZ) cameras.
  • the CPU may include image processing software which operates to recognise the character of an image by comparing it for correspondence with a plurality of stored reference images, in dependence upon which comparison, the CPU operates for camera selection.
  • the CPU may include image processing software which operates to recognise a character in an image by comparing key features of the image for correlation with key features in a plurality of stored reference images in dependence upon which comparison the CPU operates for camera selection.
  • the features along one or more co-ordinates of an image may be compared for correlation with the features of one or more corresponding co-ordinates of a reference image.
  • the video camera may be a thermo-sensing camera such as an infra-red camera.
  • a camera system comprising a plurality of cameras, an image display monitor and camera selector means; wherein a target object can be viewed as an image on said monitor from a first camera, said camera selector means being operable to select/switch such that an image from an appropriate adjacent second camera is displayed on said monitor when the target of interest moves to a peripheral or border region of said image provided by said first camera; whereby to maintain target image continuity.
  • a method of operating a security camera system comprising a plurality of video cameras, an image display monitor, a user control and camera selector means; wherein a target of interest can be observed by a first video camera and an image of said target can be displayed on the monitor; wherein the cameras images in combination can provide a predetermined overall area of coverage, each two cameras providing adjacent areas of coverage being operable to provide overlap image portions at transition regions of a displayed image; the method comprising the steps of: observing a target of interest displayed as an image on the monitor and, upon movement of the target to a transition region, operating the camera selection means whereby an image from a second camera is displayed, whereby target image continuity may be maintained.
  • Figure 1 is a schematic block diagram of a security camera system using fixed cameras and
  • FIG 2 is a schematic block diagram of a security camera system using fixed cameras and PTZ cameras wherein parts corresponding to those shown in Figure 1 bear the same numerical designations.
  • an exemplary security camera system is shown, of the kind used in shopping precincts or urban centres to provide video surveillance comprises a plurality of fixed security cameras 1, 2, 3, 4, which are arranged to feed their respective video signals to a camera matrix 5.
  • the camera matrix 5, serves as a video camera selector, to select the signals from one of the cameras 1 , 2, 3, 4, for display on the screen of an image display monitor 6, which is operatively associated with a user interaction device 7.
  • the device 7, might conveniently comprise a mouse or the like which can be used to move a cursor 8, around an image display 9, on the display monitor 6.
  • a separate CPU which receives signals from the camera matrix relating to all the signals from the cameras.
  • the camera matrix 5 is controlled by the CPU in which data is retained relating to a fixed field of view afforded by each of the cameras 1 , 2, 3, 4, and the position of the cursor 8.
  • a target person for example, may be visually followed by an operator across a current image field of view and when the target approaches an edge of the field of view, the device 7 may be used to 'mark' the spot with the cursor 8, for example by 'clicking' on the boundary. Data identifying the marked spot together with data appertaining to each available camera image is then processed in the CPU in order to select the most suitable camera to feed the monitor 6.
  • the image displayed may be surrounded by 'button regions' 1 1 , the 'button region' (or regions) adjacent to a spot whereat a target approaches the limit of an image being selected using the cursor 8, and the device 7, in order to provide information for the CPU to facilitate selection of an appropriate one of the cameras 1, 2, 3, or 4 for the image display 9.
  • the screen may be equipped with a touch sensitive screen, whereby the camera is selected following the placing of a finger, for example, upon a touch sensitive portion of the screen.
  • PTZ cameras 12, 13, and 14 are used in addition to the fixed cameras 1 , 2, 3, 4.
  • data is stored in the CPU appertaining to various parameters relating to the image produced by each of the PTZ cameras 12, 13, 14, to facilitate image processing in the CPU in order to determine the relationship of each image, to other images, to the overall display coverage and to the cursor and/or button positions, whereby a determination in the CPU of the most appropriate camera to use is facilitated.
  • a system according to this invention would enable security staff to track a suspect target through the images provided by a set of video cameras, using both PTZ cameras and/or fixed cameras or, indeed, to have a system having logic operable to track an identified target. It is apparent that with fixed cameras, the problem is comparatively easily solved by knowledge of the transition regions in each camera where the subject leaves the field of view, and of the camera on which that region can next be seen.
  • all other cameras on which that point can be seen could be displayed, for example, as windows on a PC display.
  • the security staff would then be capable of tracking a target individual by 'clicking' on the current image view at a point where the target individual goes off the edge of the scene, so as to prompt the provision a fresh display provided by the best one of the other cameras to which the target is visible.

Abstract

A security camera system is provided. Several video cameras operate in conjunction with an image display monitor, a user control and camera selector means whereby a target of interest may be followed. Each two cameras providing adjacent areas of coverage are operable to provide an overlay image portion at transition regions of a displayed image. Upon movement of the target of interest to a specified transition region of a currently displayed image provided by one video camera, the camera selection means is operable to select a second camera whereby to maintain target display continuity by the monitor.

Description

Improvements in or relating to security camera systems.
This invention relates to security camera systems and more especially but not exclusively it relates to camera systems of the kind used in shopping precincts or urban centres to provide video surveillance.
Camera systems providing video surveillance are in common use and may comprise a large number of cameras in order to provide adequate video surveillance of a prescribed area. If an incident occurs, security staff in 'closed circuit television' (CCTV) control rooms, will attempt to keep a person involved in the incident, and who might be making haste to leave the scene, within the field of view. This might involve switching between cameras, as the person leaves the field of view of one camera and enters the field of view of another camera or cameras, so that the camera used is always the one which affords the best view of the person being observed. In practice, this can be difficult, requiring highly trained staff who are familiar with the camera layout on a particular site. It is therefore all too easy to lose track of a person, even on a site having good camera coverage, and this may result in the loss of vital evidence, since video surveillance data used for prosecution is typically required to be continuous in time.
It is an object of this invention to provide an improved camera system wherein the tracking of a person moving between areas covered by different security cameras is facilitated whereby the task of security staff is simplified. In accordance with a further aspect of the invention, there is provided a security camera system comprising a plurality of video cameras, an image display monitor, a user control and camera selector means; wherein a target of interest can be observed by a first video camera and an image of said target can be displayed on the monitor; wherein the cameras images in combination can provide a predetermined overall area of coverage, each two cameras providing adjacent areas of coverage being operable to provide overlap image portions at transition regions of a displayed image; wherein a target of interest may be observed as an image on the monitor, wherein, upon movement of the target to a transition region, the camera selection means is operable to select a second camera whereby to maintain target image continuity. The user control may comprise a mouse or the like device to control a cursor which is used to indicate when the target has moved to an image transition region. Alternatively or additionally a touch sensitive screen may be provided.
The user control may be used to select a 'button' region displayed by the image display monitor, from a plurality of such regions which are arranged to surround an image displayed, the 'button' region selected indicating an image edge region of a currently displayed image approached by a target, in dependence upon which 'button' region selection, video signals from another of the video cameras are used thereby to maintain target display continuity by the monitor.
The user control may be used to select a transition region displayed by the image display monitor, from a plurality of such regions which are arranged to surround an image displayed, and which are also arranged within the image, the transition region selected indicating an image region of a currently displayed image approached by a target, in dependence upon which transition region selection, video signals from another of the video cameras are used thereby to maintain target display continuity by the monitor.
Conveniently the user control includes a CPU, which is operable to store data including, in respect of each camera, the pixel positions of the lines at which transitions occur, and the identity of the camera to be selected at that transition. The data stored in the CPU may include, for example, in respect of each camera: image centre data, focal length data, and distortion parameters. At least some of the cameras may be fixed and /or at least some of the cameras may be pan-tilt-zoom (PTZ) cameras. The CPU may include image processing software which operates to recognise the character of an image by comparing it for correspondence with a plurality of stored reference images, in dependence upon which comparison, the CPU operates for camera selection.
The CPU may include image processing software which operates to recognise a character in an image by comparing key features of the image for correlation with key features in a plurality of stored reference images in dependence upon which comparison the CPU operates for camera selection.
In one embodiment the features along one or more co-ordinates of an image may be compared for correlation with the features of one or more corresponding co-ordinates of a reference image.
The video camera may be a thermo-sensing camera such as an infra-red camera. In accordance with a further aspect of the invention, there is provided a camera system comprising a plurality of cameras, an image display monitor and camera selector means; wherein a target object can be viewed as an image on said monitor from a first camera, said camera selector means being operable to select/switch such that an image from an appropriate adjacent second camera is displayed on said monitor when the target of interest moves to a peripheral or border region of said image provided by said first camera; whereby to maintain target image continuity.
In accordance with a still further aspect of the invention, there is provided a method of operating a security camera system comprising a plurality of video cameras, an image display monitor, a user control and camera selector means; wherein a target of interest can be observed by a first video camera and an image of said target can be displayed on the monitor; wherein the cameras images in combination can provide a predetermined overall area of coverage, each two cameras providing adjacent areas of coverage being operable to provide overlap image portions at transition regions of a displayed image; the method comprising the steps of: observing a target of interest displayed as an image on the monitor and, upon movement of the target to a transition region, operating the camera selection means whereby an image from a second camera is displayed, whereby target image continuity may be maintained. One embodiment of the invention will now be described by way of example only with reference to accompanying drawings wherein ;
Figure 1 , is a schematic block diagram of a security camera system using fixed cameras and,
Figure 2, is a schematic block diagram of a security camera system using fixed cameras and PTZ cameras wherein parts corresponding to those shown in Figure 1 bear the same numerical designations. Referring now to Figure 1, an exemplary security camera system is shown, of the kind used in shopping precincts or urban centres to provide video surveillance comprises a plurality of fixed security cameras 1, 2, 3, 4, which are arranged to feed their respective video signals to a camera matrix 5. The camera matrix 5, serves as a video camera selector, to select the signals from one of the cameras 1 , 2, 3, 4, for display on the screen of an image display monitor 6, which is operatively associated with a user interaction device 7. The device 7, might conveniently comprise a mouse or the like which can be used to move a cursor 8, around an image display 9, on the display monitor 6. Instead of there being a memory means associated with the matrix (control selection means), there is provided a separate CPU which receives signals from the camera matrix relating to all the signals from the cameras. The camera matrix 5, is controlled by the CPU in which data is retained relating to a fixed field of view afforded by each of the cameras 1 , 2, 3, 4, and the position of the cursor 8. In operation, a target person, for example, may be visually followed by an operator across a current image field of view and when the target approaches an edge of the field of view, the device 7 may be used to 'mark' the spot with the cursor 8, for example by 'clicking' on the boundary. Data identifying the marked spot together with data appertaining to each available camera image is then processed in the CPU in order to select the most suitable camera to feed the monitor 6.
In an alternative embodiment the image displayed may be surrounded by 'button regions' 1 1 , the 'button region' (or regions) adjacent to a spot whereat a target approaches the limit of an image being selected using the cursor 8, and the device 7, in order to provide information for the CPU to facilitate selection of an appropriate one of the cameras 1, 2, 3, or 4 for the image display 9.
In a still further embodiment, the screen may be equipped with a touch sensitive screen, whereby the camera is selected following the placing of a finger, for example, upon a touch sensitive portion of the screen.
Referring now to Figure 2, in an alternative arrangement PTZ cameras 12, 13, and 14, are used in addition to the fixed cameras 1 , 2, 3, 4. In this arrangement data is stored in the CPU appertaining to various parameters relating to the image produced by each of the PTZ cameras 12, 13, 14, to facilitate image processing in the CPU in order to determine the relationship of each image, to other images, to the overall display coverage and to the cursor and/or button positions, whereby a determination in the CPU of the most appropriate camera to use is facilitated. Considering now some applications, it will be appreciated that a system according to this invention would enable security staff to track a suspect target through the images provided by a set of video cameras, using both PTZ cameras and/or fixed cameras or, indeed, to have a system having logic operable to track an identified target. It is apparent that with fixed cameras, the problem is comparatively easily solved by knowledge of the transition regions in each camera where the subject leaves the field of view, and of the camera on which that region can next be seen.
Alternatively, if a point in one image is selected, all other cameras on which that point can be seen, could be displayed, for example, as windows on a PC display. The security staff would then be capable of tracking a target individual by 'clicking' on the current image view at a point where the target individual goes off the edge of the scene, so as to prompt the provision a fresh display provided by the best one of the other cameras to which the target is visible.
For PTZ cameras the problem is somewhat more complex, but is nevertheless soluble. In existing camera installations, it is unlikely that the PTZ cameras will have feedback of the values of pan, tilt and zoom available to the PC. This information, or some equivalent information, is necessary to determine on which new cameras a target will be visible when leaving the field of view of a current camera. This information can however be measured, as herein before explained, by using image processing. This method requires comparison of a current image with a set of stored reference images to determine where the transition regions occur in the current image. This could be done in real-time whilst a camera was being moved by operation of it joystick control, to determine its current PTZ parameters. With the use of a smart CPU, the functions of a user control could be reduced to that of selecting a target.

Claims

CLAIMS.
1. A security camera system comprising a plurality of video cameras, an image display monitor, a user control and camera selector means; wherein a target of interest can be observed by a first video camera and an image of said target can be displayed on the monitor; wherein the cameras images in combination can provide a predetermined overall area of coverage, each two cameras providing adjacent areas of coverage being operable to provide overlap image portions at transition regions of a displayed image; wherein a target of interest may be observed as an image on the monitor, wherein, upon movement of the target to a transition region, the camera selection means is operable to select a second camera whereby to maintain target image continuity.
2. A security camera system as claimed in Claim 1, wherein the user control comprises a mouse or the like operative device to control a cursor which is used to track the target and to indicate when it has moved to an image transition region.
3. A security camera system as claimed in Claim 1 wherein the user control comprises a touch sensitive screen.
4. A security camera system as claimed in any one of Claims 1 to 3, wherein the user control is used to select a 'button' region displayed by the image display monitor, from a plurality of such regions which are arranged about or surround an image displayed, the 'button' region selected indicating an image edge region of a currently displayed image approached by t e target, in dependence upon a particular 'button' region selectio , video signals from another of the video cameras are used.
5. A security camera system as claimed in any one of Claims 1 to 3, wherein the user control is operable to select a transition region displayed by the image display monitor, from a plurality of such regions which are arranged about or surround an image displayed, and are also arranged within the image, the transition region selected indicating an image region of a currently displayed image approached by a target, in dependence upon which transition region selection, video signals from another of the video cameras are used.
6. A security camera system as claimed in any preceding claim, wherein the user control includes a CPU and wherein the CPU is operable to store data including, for example, in respect of each camera: image centre data, focal length data, and distortion parameters, and x,y,z, and pan and tilt data.
7. A security camera system as claimed in any preceding claim, wherein at least some of the cameras are fixed.
8. A security camera system as claimed in any preceding claim, wherein at least some of the cameras are PTZ cameras.
9. A security camera system as claimed in Claim 6, wherein the CPU includes image processing software for PTZ cameras, which operates to recognise the character of an image by comparing it for correspondence with a plurality of stored reference images, in dependence upon which comparison the CPU operates for camera selection.
10. A security camera system as claimed in Claim 9, wherein the CPU includes image processing software which operates to recognise the character of an image by comparing key features of the image for correspondence with key features in a plurality of stored reference images in dependence upon which comparison the CPU operates for camera selection.
11. A security camera system as claimed in Claim 10, wherein key features along one or more co-ordinates of an image are compared for correspondence with the key features along one or more corresponding co-ordinates of a reference image.
12. A security camera system as claimed in Claim 6, wherein the data stored in the CPU includes in respect of each camera, the pixel positions of the lines at which transitions occur, and the identity of the camera to be selected at that transition.
13. A security camera system as claimed in any preceding claim wherein the video camera is an infra-red camera.
14. A method of operating a security camera system comprising a plurality of video cameras, an image display monitor, a user control and camera selector means; wherein a target of interest can be observed by a first video camera and an image of said target can be displayed on the monitor; wherein the cameras images in combination can provide a predetermined overall area of coverage, each two cameras providing adjacent areas of coverage being operable to provide overlap image portions at transition regions of a displayed image; the method comprising the steps of: observing a target of interest displayed as an image on the monitor and, upon movement of the target to a transition region, operating the camera selection means whereby an image from a second camera is displayed, whereby target image continuity may be maintained.
15. A method according to Claim 14, wherein the user control comprises a mouse or the like operative to control a cursor which is used to track the target and to indicate when it has moved to an image transition region.
16. A method as claimed in Claim 14 wherein the user control comprises a touch sensitive screen.
17. A method according to any of Claims 14 to 16, wherein the user control is operable to select a 'button' region displayed by the image display monitor, from a plurality of such regions which are arranged about or surround an image displayed, the 'button' region selected indicating an image edge region of a currently displayed image approached by the target, in a dependence upon a particular 'button' region selection, video signals from another of the video cameras are used thereby to maintain target display continuity by the monitor.
18. A method as claimed in any one of Claims 14 to 17, wherein the user control is operable to select a transition regions displayed by the image display monitor, from a plurality of such regions which are arranged about or surround an image displayed, and are also arranged within the image, the transition region selected indicating an image region of a currently displayed image approached by a target, in dependence upon which transition region selection, video signals from another of the video cameras are used, thereby to maintain target display continuity by the monitor.
PCT/GB2000/004847 1999-12-18 2000-12-18 Improvements in or relating to security camera systems WO2001045415A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US10/149,973 US7295228B2 (en) 1999-12-18 2000-12-18 Security camera systems
AT00985597T ATE247361T1 (en) 1999-12-18 2000-12-18 IMPROVEMENT IN SECURITY CAMERA SYSTEMS
EP00985597A EP1245115B1 (en) 1999-12-18 2000-12-18 Improvements in security camera systems
DE60004568T DE60004568D1 (en) 1999-12-18 2000-12-18 IMPROVEMENT IN SECURITY CAMERA SYSTEMS

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9929870.5A GB9929870D0 (en) 1999-12-18 1999-12-18 Improvements in or relating to security camera systems
GB9929870.5 1999-12-18

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WO2001045415A1 true WO2001045415A1 (en) 2001-06-21

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US (1) US7295228B2 (en)
EP (1) EP1245115B1 (en)
AT (1) ATE247361T1 (en)
CZ (1) CZ20022116A3 (en)
DE (1) DE60004568D1 (en)
GB (1) GB9929870D0 (en)
WO (1) WO2001045415A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1867167A1 (en) * 2005-04-03 2007-12-19 Nice Systems Ltd. Apparatus and methods for the semi-automatic tracking and examining of an object or an event in a monitored site
AT17341U1 (en) * 2021-01-27 2022-01-15 Pke Holding Ag Arrangement of cameras to monitor an area
US11431990B2 (en) 2015-06-04 2022-08-30 Thales Holdings Uk Plc Video compression with increased fidelity near horizon

Families Citing this family (44)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004039078A1 (en) * 2002-10-28 2004-05-06 Denaro Co., Ltd. Monitoring system of specific area
US20070070210A1 (en) * 2003-04-11 2007-03-29 Piccionelli Gregory A Video production with selectable camera angles
US20040263626A1 (en) * 2003-04-11 2004-12-30 Piccionelli Gregory A. On-line video production with selectable camera angles
US20100002070A1 (en) 2004-04-30 2010-01-07 Grandeye Ltd. Method and System of Simultaneously Displaying Multiple Views for Video Surveillance
US7450165B2 (en) * 2003-05-02 2008-11-11 Grandeye, Ltd. Multiple-view processing in wide-angle video camera
JP4049115B2 (en) * 2004-03-15 2008-02-20 セイコーエプソン株式会社 projector
US20050212918A1 (en) * 2004-03-25 2005-09-29 Bill Serra Monitoring system and method
US20050225634A1 (en) * 2004-04-05 2005-10-13 Sam Brunetti Closed circuit TV security system
US7956890B2 (en) 2004-09-17 2011-06-07 Proximex Corporation Adaptive multi-modal integrated biometric identification detection and surveillance systems
US20080036864A1 (en) * 2006-08-09 2008-02-14 Mccubbrey David System and method for capturing and transmitting image data streams
US9544563B1 (en) 2007-03-23 2017-01-10 Proximex Corporation Multi-video navigation system
US7777783B1 (en) 2007-03-23 2010-08-17 Proximex Corporation Multi-video navigation
JP2008278128A (en) * 2007-04-27 2008-11-13 Toshiba Corp Monitoring system, monitoring method, and program
WO2008147913A2 (en) * 2007-05-22 2008-12-04 Vidsys, Inc. Tracking people and objects using multiple live and recorded surveillance camera video feeds
KR101187909B1 (en) * 2007-10-04 2012-10-05 삼성테크윈 주식회사 Surveillance camera system
CN101448142A (en) * 2007-11-27 2009-06-03 鸿富锦精密工业（深圳）有限公司 Image tracking device and image tracking method thereof
US9071626B2 (en) 2008-10-03 2015-06-30 Vidsys, Inc. Method and apparatus for surveillance system peering
US20110002548A1 (en) * 2009-07-02 2011-01-06 Honeywell International Inc. Systems and methods of video navigation
US9497386B1 (en) 2009-09-22 2016-11-15 Altia Systems Inc. Multi-imager video camera with automatic exposure control
DE102010048185B4 (en) * 2010-10-13 2021-10-28 Wirtgen Gmbh Self-propelled construction machine
GB2485390A (en) * 2010-11-12 2012-05-16 Sony Corp Video Surveillance System that Detects Changes by Comparing a Current Image with a Reference Image
US9615064B2 (en) * 2010-12-30 2017-04-04 Pelco, Inc. Tracking moving objects using a camera network
US9171075B2 (en) 2010-12-30 2015-10-27 Pelco, Inc. Searching recorded video
US9681125B2 (en) 2011-12-29 2017-06-13 Pelco, Inc Method and system for video coding with noise filtering
US8965045B2 (en) * 2012-02-22 2015-02-24 Nokia Corporation Image capture
US20140118541A1 (en) 2012-10-26 2014-05-01 Sensormatic Electronics, LLC Transcoding mixing and distribution system and method for a video security system
US9087386B2 (en) 2012-11-30 2015-07-21 Vidsys, Inc. Tracking people and objects using multiple live and recorded surveillance camera video feeds
CN104065934B (en) * 2014-07-02 2018-08-24 上海理工大学 A kind of monitoring device and its monitoring method of mobile object
US10140827B2 (en) 2014-07-07 2018-11-27 Google Llc Method and system for processing motion event notifications
US9449229B1 (en) 2014-07-07 2016-09-20 Google Inc. Systems and methods for categorizing motion event candidates
US10127783B2 (en) 2014-07-07 2018-11-13 Google Llc Method and device for processing motion events
US9501915B1 (en) 2014-07-07 2016-11-22 Google Inc. Systems and methods for analyzing a video stream
US9544636B2 (en) 2014-07-07 2017-01-10 Google Inc. Method and system for editing event categories
US9354794B2 (en) 2014-07-07 2016-05-31 Google Inc. Method and system for performing client-side zooming of a remote video feed
USD782495S1 (en) 2014-10-07 2017-03-28 Google Inc. Display screen or portion thereof with graphical user interface
US9237307B1 (en) 2015-01-30 2016-01-12 Ringcentral, Inc. System and method for dynamically selecting networked cameras in a video conference
GB2539031A (en) * 2015-06-04 2016-12-07 Canon Kk Methods, devices and computer programs for processing images in a system comprising a plurality of cameras
US9361011B1 (en) 2015-06-14 2016-06-07 Google Inc. Methods and systems for presenting multiple live video feeds in a user interface
US10506237B1 (en) 2016-05-27 2019-12-10 Google Llc Methods and devices for dynamic adaptation of encoding bitrate for video streaming
US10380429B2 (en) 2016-07-11 2019-08-13 Google Llc Methods and systems for person detection in a video feed
US11783010B2 (en) 2017-05-30 2023-10-10 Google Llc Systems and methods of person recognition in video streams
US10664688B2 (en) 2017-09-20 2020-05-26 Google Llc Systems and methods of detecting and responding to a visitor to a smart home environment
US20190347915A1 (en) * 2018-05-11 2019-11-14 Ching-Ming Lai Large-scale Video Monitoring and Recording System
RU2696548C1 (en) * 2018-08-29 2019-08-02 Александр Владимирович Абрамов Method of constructing a video surveillance system for searching and tracking objects

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5434617A (en) * 1993-01-29 1995-07-18 Bell Communications Research, Inc. Automatic tracking camera control system
EP0714081A1 (en) * 1994-11-22 1996-05-29 Sensormatic Electronics Corporation Video surveillance system
JPH09331520A (en) * 1996-06-13 1997-12-22 Nippon Telegr & Teleph Corp <Ntt> Automatic tracking system
US5898459A (en) * 1997-03-26 1999-04-27 Lectrolarm Custom Systems, Inc. Multi-camera programmable pan-and-tilt apparatus
WO1999045511A1 (en) * 1998-03-04 1999-09-10 The Trustees Of Columbia University In The City Of New York A combined wide angle and narrow angle imaging system and method for surveillance and monitoring

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5164827A (en) * 1991-08-22 1992-11-17 Sensormatic Electronics Corporation Surveillance system with master camera control of slave cameras
US5625410A (en) * 1993-04-21 1997-04-29 Kinywa Washino Video monitoring and conferencing system
US5774569A (en) * 1994-07-25 1998-06-30 Waldenmaier; H. Eugene W. Surveillance system
US6002995A (en) * 1995-12-19 1999-12-14 Canon Kabushiki Kaisha Apparatus and method for displaying control information of cameras connected to a network
WO1999052288A1 (en) * 1998-04-02 1999-10-14 Kewazinga Corp. A navigable telepresence method and system utilizing an array of cameras
US6359647B1 (en) * 1998-08-07 2002-03-19 Philips Electronics North America Corporation Automated camera handoff system for figure tracking in a multiple camera system
US6144375A (en) * 1998-08-14 2000-11-07 Praja Inc. Multi-perspective viewer for content-based interactivity
US6437819B1 (en) * 1999-06-25 2002-08-20 Rohan Christopher Loveland Automated video person tracking system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5434617A (en) * 1993-01-29 1995-07-18 Bell Communications Research, Inc. Automatic tracking camera control system
EP0714081A1 (en) * 1994-11-22 1996-05-29 Sensormatic Electronics Corporation Video surveillance system
JPH09331520A (en) * 1996-06-13 1997-12-22 Nippon Telegr & Teleph Corp <Ntt> Automatic tracking system
US5898459A (en) * 1997-03-26 1999-04-27 Lectrolarm Custom Systems, Inc. Multi-camera programmable pan-and-tilt apparatus
WO1999045511A1 (en) * 1998-03-04 1999-09-10 The Trustees Of Columbia University In The City Of New York A combined wide angle and narrow angle imaging system and method for surveillance and monitoring

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1998, no. 04 31 March 1998 (1998-03-31) *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1867167A1 (en) * 2005-04-03 2007-12-19 Nice Systems Ltd. Apparatus and methods for the semi-automatic tracking and examining of an object or an event in a monitored site
EP1867167A4 (en) * 2005-04-03 2009-05-06 Nice Systems Ltd Apparatus and methods for the semi-automatic tracking and examining of an object or an event in a monitored site
US10019877B2 (en) 2005-04-03 2018-07-10 Qognify Ltd. Apparatus and methods for the semi-automatic tracking and examining of an object or an event in a monitored site
US11431990B2 (en) 2015-06-04 2022-08-30 Thales Holdings Uk Plc Video compression with increased fidelity near horizon
AT17341U1 (en) * 2021-01-27 2022-01-15 Pke Holding Ag Arrangement of cameras to monitor an area

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