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WO2011136418A1 - Enregistreur dvr et procédé de surveillance d'images de celui-ci - Google Patents

Enregistreur dvr et procédé de surveillance d'images de celui-ci Download PDF

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Publication number
WO2011136418A1
WO2011136418A1 PCT/KR2010/002756 KR2010002756W WO2011136418A1 WO 2011136418 A1 WO2011136418 A1 WO 2011136418A1 KR 2010002756 W KR2010002756 W KR 2010002756W WO 2011136418 A1 WO2011136418 A1 WO 2011136418A1
Authority
WO
WIPO (PCT)
Prior art keywords
tracking
image
camera
cameras
surveillance
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.)
Ceased
Application number
PCT/KR2010/002756
Other languages
English (en)
Korean (ko)
Inventor
김영석
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.)
ITX Security Co Ltd
Original Assignee
ITX Security Co Ltd
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 ITX Security Co Ltd filed Critical ITX Security Co Ltd
Publication of WO2011136418A1 publication Critical patent/WO2011136418A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V20/00—Scenes; Scene-specific elements
    • G06V20/50—Context or environment of the image
    • G06V20/52—Surveillance or monitoring of activities, e.g. for recognising suspicious objects
    • 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
    • G08B13/19645—Multiple cameras, each having view on one of a plurality of scenes, e.g. multiple cameras for multi-room surveillance or for tracking an object by view hand-over
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/90—Arrangement of cameras or camera modules, e.g. multiple cameras in TV studios or sports stadiums
    • 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
    • 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

Definitions

  • the present invention relates to a DV for dividing a surveillance area into a plurality of zones and storing video signals photographed by a plurality of cameras. More particularly, the present invention relates to a DVB in a surveillance region through video analytics. The present invention relates to a television and a video surveillance method for tracking and monitoring a movement of a recognized object.
  • Digital Video Recorder is a video surveillance and storage means for converting video signals input through an analog camera into digital video signals, compressing them, and storing them in a hard disk. It is replacing CCTV market by Video Cassette Recorder.
  • the DVD 100 stores the video signal on the hard disk, and thus there is no deterioration due to the repeated playback and recording of the tape as in the VRT, and the analog video signal is compressed and stored as a digital signal for quick search and event-specific search. It may provide a convenient user interface such as.
  • IP cameras which have improved image quality and have a role of video surveillance, have emerged, and DVRs are also accepting such IP cameras.
  • An object of the present invention is to divide the surveillance area into a plurality of zones and perform video surveillance while storing the video signals photographed by a plurality of cameras, and the object recognized in the surveillance region through video analytics for the video signals.
  • the present invention provides a television and a video surveillance method for tracking and monitoring a motion of a camera.
  • the image storage method of the DV device for receiving an image from a plurality of cameras, each of which captures a plurality of surveillance areas to store the image file, the spatial connection of the plurality of surveillance areas Storing logical connections of the plurality of cameras based on path analysis of the moving object; Recognizing and tracking a moving object while monitoring an image input from a selected one of the plurality of cameras according to a monitoring event; If the object is not recognized during the tracking, recognizing a moving object with respect to an image input from a camera in a logical connection with the selected camera and continuing tracking; And generating connection information of an image file generated according to the tracking.
  • the monitoring method may be performed on the images inputted from all of the plurality of logically connected cameras. Recognizing a moving object; And continuously tracking a camera in which the moving object is recognized among the plurality of logically connected cameras.
  • the step of tracking continuously if there are a plurality of moving objects recognized in the image input from the camera associated with the connection, the newly recognized object is tracked at the time of starting the tracking.
  • a DV device receiving an image from a plurality of cameras respectively photographing a plurality of surveillance regions and storing a corresponding image file may include an image processor to perform the image tracking, and the plurality of surveillance regions. And a monitoring unit requesting the image processing unit to process an image input from one of the plurality of cameras based on the path analysis of the moving object according to the spatial connection of the plurality of cameras.
  • the DVR may further track object paths for images input from the plurality of cameras based on path analysis of a moving object according to spatial connection of a surveillance area. By performing the analysis, the video file can be stored and played back intelligently according to the movement of the object moving the surveillance object.
  • the DV may have the same effect as if the manager captures the monitored object and records it while the manager selects the monitored camera according to the movement path of the target.
  • FIG. 1 is a block diagram of a DV system according to an embodiment of the present invention.
  • FIG. 2 is a block diagram of a television according to an embodiment of the present invention.
  • FIG. 3 is a diagram illustrating an example in which a camera is installed in a surveillance area.
  • FIG. 4 is a flowchart provided to explain an image monitoring method according to an embodiment of the present invention.
  • a digital video recorder (DVR) 100 may receive and process analog video signals provided by a plurality of analog cameras 11, 13, and 15. 30 is connected to the digital video signal provided by the IP camera (17, 19) can be processed.
  • DVR digital video recorder
  • the DB 100 is connected to an external device 50 such as a user's mobile phone through the IP network 30 to receive a predetermined control command from the external device 50 or process an image to the external device 50.
  • the signal can be output or streamed.
  • the DV 100 may convert a video signal input from an analog camera into a digital video signal, and convert the digital video signal into an analog video signal for output to an external monitor.
  • the analog video input from the analog cameras 11, 13, and 15 is converted into a digital video signal by the video decoder 111, and then other video signals are added or synthesized by the image processor 115 to the video encoder 113.
  • the video encoder 113 converts the analog signal into an analog signal and outputs the analog signal.
  • the image processor 115 provides an image signal to the codec 117 under the control of the controller 130 to be compressed and stored in the storage medium 121.
  • the digital video signal input from the IP cameras 17 and 19 through the communication interface unit 119 is stored in the storage medium 119, or the codec 117, the image processor 115, and the video encoder 113 are stored. Through the monitor.
  • the overall operation of the DVR 100 is controlled by the controller 130. Furthermore, the controller 130 provides an intelligent image tracking function characteristic of the present invention.
  • the controller 130 includes an image processor 131, a monitor 133, and a recording / playback processor 135.
  • the block diagram of FIG. 2 is not a reflection of hardware as it is, but may be different from the actual hardware configuration as shown in the concept of functional blocks, but in any form, if the functional configuration is the same as the present invention, it is included in the rights of the present invention. It must be understood.
  • the image processor 131 is illustrated as being included in the controller 130 in FIG. 2, the image processor 131 may be provided separately from the controller 130.
  • the image processor 131 recognizes a moving object by performing object recognition on an image input from a camera requested by the monitoring unit 133 to process the moving camera.
  • the image processor 131 provides the monitoring unit 133 with detection information of the corresponding object.
  • the detection information includes at least information on a time when a new object appeared in the image of the requested camera and a time when the new object disappeared.
  • the object recognition and tracking process of the image processor 131 may use various known methods. For example, general object recognition may be obtained from a subtraction operation of an image of a previous frame and an image of a new frame, and tracking of the detected object may also use a known algorithm.
  • the monitoring unit 133 performs a monitoring algorithm for the area to be monitored with information about a logical connection relationship (or logical connection relationship between each monitoring area) of each camera to be described below, and stores the result in the storage medium 121. Store in
  • the monitoring unit 133 requests the image processing unit 131 to recognize the intruder (object) through the analysis of the image input from the specific camera based on the monitoring algorithm, and based on the recognition result provided from the image processing unit 131. Based on the monitoring result is generated as a log file and stored in the storage medium 121.
  • the recording / playback processing unit 135 controls an operation for recording and reproducing a basic video signal provided by the DVR 100, and requests an image input from a specific camera at the request of the monitoring unit 133. It may be managed to be stored as a separate image file from time, or may be given a separate tag or metadata.
  • each of the surveillance areas B1 to B5 is divided by the cameras 11 to 19.
  • Each surveillance zone or each camera is connected to each other logically by moving path analysis based on the purpose of the surveillance, the spatial characteristics of the surveillance zone, and the characteristics of the object to be monitored (eg, intruder). For example, when the monitoring target is a human, an intruder who invades the first surveillance region B1 must pass through the third surveillance region B3, and the intruder who appears in the first surveillance region B1 is the fourth surveillance region (the next instant). What happens in B4) does not occur.
  • Table 1 Camera no Logical connection camera First camera 2nd, 3 camera Second camera 1st, 3 camera Third camera 1st, 2nd, 5th camera 4th camera 5th camera 5th camera 3rd, 4th camera
  • the fifth surveillance zone B5 ⁇ the third surveillance zone B3 ⁇ the first surveillance zone B1 is a possible connection, but the fifth surveillance zone B5 ⁇ the fourth surveillance zone B4 ⁇ The first surveillance region B1 is impossible because there is no connection relationship between the fourth surveillance region B4 and the first surveillance region B1.
  • the monitoring unit 133 requests the image processor 131 to recognize and track an object of an image of a camera according to the corresponding event.
  • the monitoring event may be generated by a separate infrared sensor or a magnetic sensor, or may be made through analysis of the image of the entire camera installed in the monitoring area.
  • the surveillance event may also occur due to a control command or a time setting of a user who selects a specific camera or a specific surveillance region.
  • the object p enters the first surveillance region B1, 3 Assume that it has moved to the surveillance area B3. It is irrelevant whether or not the third surveillance region B3 is an surveillance region requested by the user.
  • the image processing unit 131 starts object recognition and tracking of an image input from a camera requested to be monitored (in the example of FIG. 3, the first camera).
  • Object recognition, extraction, and tracking of the image processor 131 may be processed by a method known in the image processing field as described above.
  • the image processor 131 When the moving object is extracted during image analysis, the image processor 131 provides the extracted fact to the monitoring unit 133 together with the extracted time information and starts tracking the extracted object.
  • the image processor 131 When the object disappears from the image of the camera requested to be monitored after a certain time in accordance with the movement of the object and the escape of the surveillance region, the image processor 131 provides the monitoring unit 133 with the end time information to end the object tracking. do.
  • the image processing unit 131 starts object recognition and tracking, and when the intruder leaves the third surveillance area B3 which is a corridor, 1
  • the object disappears from the image input from the camera 11 and the image processor 131 ends the tracking of the object.
  • the monitoring unit 133 When the monitoring unit 133 is notified of the end of object tracking for the requested camera image from the image processing unit 131, the monitoring unit 133 selects a camera (monitoring area) to be continuously tracked from a camera (or monitoring area) logically connected to the camera being tracked. do. To this end, the monitoring unit 133 requests the image processing unit 131 to track all of the logically connected cameras for a predetermined time. In an example, since the logically connected cameras of the first camera 11 are the second camera 13 and the third camera 15, the monitoring unit 133 may be configured for the second camera 13 and the third camera 15.
  • the image processor 131 requests a monitoring of a predetermined time. In this case, the predetermined time may be determined in consideration of the moving capability of the object, the spatial characteristics of the surveillance region, and the like.
  • the image processor 131 monitors whether there is a newly displayed object with respect to the images of the cameras which are requested to be tracked for a set time at the request of the monitoring unit 133, and provides the monitoring result to the monitoring unit 133. As the object p moves from the first surveillance region B1 to the third surveillance region B3, the image processor 131 notifies the surveillance unit 133 that a new object is recognized in the third surveillance region.
  • the second surveillance region B2 or the third surveillance region B3 may have a previously moving object. Even in this case, the image processor 131 extracts only the newly appearing object from the image of the surveillance area and provides the result to the monitoring unit 133.
  • the operation S407 may be immediately performed without the operation S405.
  • the monitoring unit 133 selects a surveillance area to be continuously tracked based on the result provided from the image processing unit 131 in operation S405, and recognizes and tracks the same object recognition and tracking as the operation S403 for the surveillance region to the image processing unit 131. request.
  • Steps S403 to S407 are repeated until the connected surveillance region to continue tracking is not selected because the moving object is not recognized. Accordingly, the image tracking of step S403 by step S401 becomes the primary tracking, and the tracking of step S403 repeated after that will be the secondary tracking.
  • the monitoring unit 133 requests the image processing unit 131 to process the image at step S401, S405, and S407, and requests the recording and reproducing unit 135 to store the corresponding image. Manages the information about each video file stored as one tracking information.
  • the monitoring unit 133 may provide tracking information to search of the monitoring result of the manager, and when the manager requests a playback, the monitoring unit 133 requests the recording and playback processing unit 135 to play a series of video files according to the tracking information. Can be.
  • the recording / playback processing unit 135 may record all images of all cameras regardless of the request of the monitoring unit 133, but at least, the recording and reproducing processing unit may be stored as a separate image file from the requested time at the request of the monitoring unit 133. So that it can be managed or given a separate tag or metadata.

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

Abstract

L'invention concerne un enregistreur DVR et un procédé de surveillance d'images de celui-ci. L'enregistreur DVR de la présente invention divise un espace à surveiller en une pluralité de zones, sauvegarde des signaux d'images qui sont capturés par une pluralité d'appareils de prise de vues et commence à surveiller les images, dans lequel les signaux d'images sont soumis à des analyses vidéo pour suivre et surveiller le mouvement d'un objet qui est reconnu dans la zone surveillée, et des informations sur des fichiers d'images provenant de l'appareil de prise de vues, qui sont incluses dans le suivi, peuvent être maintenues séparément pour être utilisées pour d'autres recherches ou pour une reproduction.
PCT/KR2010/002756 2010-04-30 2010-04-30 Enregistreur dvr et procédé de surveillance d'images de celui-ci Ceased WO2011136418A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2010-0040469 2010-04-30
KR1020100040469A KR101086372B1 (ko) 2010-04-30 2010-04-30 디브이알 및 그 영상 감시방법

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WO2011136418A1 true WO2011136418A1 (fr) 2011-11-03

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9807338B2 (en) 2013-11-15 2017-10-31 Hanwha Techwin Co., Ltd. Image processing apparatus and method for providing image matching a search condition
GB2563088A (en) * 2017-06-04 2018-12-05 Lynch Paul Methods, systems and devices for accessing images
EP4354402A1 (fr) * 2022-10-10 2024-04-17 Milestone Systems A/S Procédé mis en uvre par ordinateur, programme informatique, support de stockage et système de surveillance vidéo

Families Citing this family (5)

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KR101203971B1 (ko) 2012-04-24 2012-11-22 주식회사 아이티엑스시큐리티 디브이알 및 그의 영상 재생방법
KR101256107B1 (ko) * 2012-04-24 2013-05-02 주식회사 아이티엑스시큐리티 디브이알 및 그의 영상 감시방법
KR101467663B1 (ko) * 2013-01-30 2014-12-01 주식회사 엘지씨엔에스 영상 모니터링 시스템에서 영상 제공 방법 및 시스템
KR101638879B1 (ko) 2014-11-06 2016-07-12 주식회사 아이디스 위젯을 통해 보안 매체와 연동 가능한 모바일 장치
KR102140606B1 (ko) * 2019-11-02 2020-08-03 씨티씨 주식회사 가상공간을 이용한 영상정보 기반 급경사지 위험 감시 방법

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KR20010088884A (ko) * 2000-10-05 2001-09-29 이종법 이동 물체의 실시간 검출 방법
KR20030064668A (ko) * 2003-06-07 2003-08-02 나병호 객체식별이 가능한 영상처리 디지탈녹화시스템
KR20090021613A (ko) * 2007-08-27 2009-03-04 아주대학교산학협력단 움직임을 추적하여 영상획득기기들의 네트워크 구성을추론하는 장치 및 방법

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Publication number Priority date Publication date Assignee Title
KR20010088884A (ko) * 2000-10-05 2001-09-29 이종법 이동 물체의 실시간 검출 방법
KR20030064668A (ko) * 2003-06-07 2003-08-02 나병호 객체식별이 가능한 영상처리 디지탈녹화시스템
KR20090021613A (ko) * 2007-08-27 2009-03-04 아주대학교산학협력단 움직임을 추적하여 영상획득기기들의 네트워크 구성을추론하는 장치 및 방법

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9807338B2 (en) 2013-11-15 2017-10-31 Hanwha Techwin Co., Ltd. Image processing apparatus and method for providing image matching a search condition
GB2563088A (en) * 2017-06-04 2018-12-05 Lynch Paul Methods, systems and devices for accessing images
EP4354402A1 (fr) * 2022-10-10 2024-04-17 Milestone Systems A/S Procédé mis en uvre par ordinateur, programme informatique, support de stockage et système de surveillance vidéo
US12340589B2 (en) 2022-10-10 2025-06-24 Milestone Systems A/S Computer-implemented method, non-transitory computer readable storage medium storing a computer program, and system for video surveillance

Also Published As

Publication number Publication date
KR20110121056A (ko) 2011-11-07
KR101086372B1 (ko) 2011-11-23

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