JP2007158496A - Map interconnection video monitoring method and apparatus thereof - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a map interconnection video monitoring method and an apparatus thereof capable of efficiently investigating a trace of a criminal for automatically extracting video data for a necessity minimum time zone and reproducing and displaying the extracted data by cooperating a place and a date and time on the occurrence of an event, position of each monitoring camera, and a video recorded time zone. <P>SOLUTION: The map interconnection video monitoring method includes: an input step of inputting the place and the date and time of the occurrence of the event; an escape possible range calculation step for calculating an escape possible range of the criminal after the occurrence of the event and corresponding to map data by each prescribed time; a passing estimate time zone calculation step of calculating a passing estimate time zone whereat the criminal passes on the basis of video data at a plurality of points corresponding to the calculated escape possible range by each prescribed time; and a video data searching step capable of automatically reading and displaying the video data in the calculated passing estimate time zone, and the method displays the video data in the passing estimate time zone on a screen together with the map data. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a novel map-linked video monitoring method and apparatus for linking map data and video data.

  Patent Document 1 discloses a communication command device that calculates a possible escape range every fixed time, calculates a deployment position of a guarded vehicle from the calculated escape possible range, and determines a deployment location such as an inspection. .

  Patent Document 2 discloses a method for calculating a possible escape range as one of route search processes for road network data.

  On the other hand, in recent years, the number of video surveillance apparatuses has been rapidly increasing against the background of development of high-speed communication networks such as broadband networks, establishment of high-compression video technologies, and increased interest in security. In particular, in recent years, surveillance cameras have been installed at various locations. For example, intrusion security monitoring in major stores such as convenience stores and banks, street monitoring of shopping streets, nighttime monitoring of parking lots, high speed It is also installed at road entrances and river flow monitoring.

  Conventionally, the video of these surveillance cameras has only been recorded on video etc. connected to the camera, but in recent years, real-time video from multiple surveillance cameras located at each of these points has been converted to broadband networks. For example, Patent Document 3 discloses that a video is displayed on a CRT such as a video display device in the headquarters or the video is stored in a video storage server in the headquarters.

  As for the method of investigating the criminal's gait in the police, etc., when using video information as one method for investigating the criminal's gait for a while after the occurrence of an incident, for example, each monitoring camera as described above A number of appropriate time tapes were collected after the incident occurred, and many video officers and others played all the videotapes to search for suspicious persons. In some cases it was taken. In addition, even if the video of each surveillance camera is stored in the video storage server as described above, the video of each surveillance camera is played back and investigated after the incident occurs. The investigation method which took much time was taken.

JP-A-9-146916 JP-A-6-52484 JP 2003-289528 A

  In the criminal gait survey using videotape video in the conventional method described above, each videotape is simply played sequentially, so a large amount of video should be checked without being aware of the temporal and positional relationship. It was very inefficient. Similarly, when checking the video stored in the video storage server, it is a method in which a monitoring camera to be played back by a human being is appropriately selected and the playback time is also appropriately specified and sequentially checked. Met. In particular, in Patent Document 1, there is no example used for a criminal gait survey for a while after the incident occurs.

  The object of the present invention is to automatically extract and reproduce video data in the minimum necessary time zone by linking the location and date of the incident, the position of each surveillance camera, and the recorded time zone. It is an object of the present invention to provide a map-linked video monitoring method and apparatus capable of efficiently performing a criminal gait survey by displaying.

  The present invention links a map display processing device and a video monitoring device. The map display processing device stores the position information where each of the plurality of monitoring cameras is installed, and the escape range calculation means for calculating the escape range for each fixed time around the incident occurrence position. An expected passage time zone calculation means for calculating an expected time zone through which the criminal passes is prepared from the calculated escapeable range every certain time and the position information of each surveillance camera.

  The video monitoring device is provided with video data input means, video data storage means, and video data display processing means from each of the plurality of monitoring cameras, and the video of the monitoring camera installed at each point is sent to the video server in the headquarters, etc. The video data of the expected passage time zone for each monitoring camera calculated by the expected passage time zone calculation means in the map display processing device is automatically read from the saved video data storage means, A video data display processing means capable of displaying on a display device such as a CRT in the head office is prepared.

  Specifically, the present invention includes an input step for inputting the position and date of occurrence of the incident, an escapeable range calculating step for calculating an escapeable range corresponding to the map data of the criminals after the incident has occurred every fixed time, An expected passage time zone calculating step for calculating an expected passage time zone for the criminal to pass from video data of a plurality of points corresponding to the calculated escapeable range every fixed time; and the calculated expected passage time zone A video data search step for automatically reading out and displaying the video data in the map, and displaying the video data in the expected passage time zone together with the map data on a screen. Is in the way.

  The present invention also includes a storage step for storing the map data necessary for display, a map data display processing step for converting the stored map data to a specified display scale, and displaying the map data, and for the map data. Video data input step for inputting video data from monitoring cameras installed at a plurality of corresponding points, a video data storage step for storing the input video data, and the stored video data can be read and displayed And a video data display processing step.

  Furthermore, the present invention provides a storage device for storing map data necessary for display, map data display processing means for converting the map data read from the storage device into a specified display scale, and enabling display, and the map data Video data input means for inputting video data from surveillance cameras installed at a plurality of points corresponding to the above, video data storage means for storing the input video data, and the video data storage means stored in the video data storage means Video data display processing means for reading and displaying video data, escapeable range calculation means for calculating a possible escape range corresponding to the map data for every predetermined time after the incident has occurred, and the escapeable range calculation Expected passage time zone for calculating the expected passage time zone of the criminal from the video data corresponding to the escapeable range every fixed time calculated by the means Output means, video data search means for automatically reading out and displaying the video data in the calculated expected passage time zone from the video data storage means, and the video data in the expected passage time zone. A map-linked video monitoring apparatus comprising a display device that displays a screen together with the map data.

  According to the present invention, it is possible to automatically select a corresponding monitoring camera from the position and time of the occurrence of the incident, and to easily display the video data of the estimated passing time zone for each selected monitoring camera. Thus, the criminal gait survey can be conducted efficiently.

  FIG. 1 is a configuration diagram of a map cooperation video monitoring apparatus of the present invention. As shown in FIG. 1, the present invention includes a storage device 10 that stores map information on a disk, a map display processing device 20, a display device 30, a video monitoring device (server side) 40, and a video monitoring device (camera side) 50. The monitor camera 60 and the map display processing device 20 have an input device 80 such as a mouse or a keyboard for performing an input operation.

  The map link video monitoring apparatus of the present embodiment includes a storage device 10 that stores map information necessary for display, map data display processing means 25 that converts the map information read from the storage device 10 into a designated display scale, and displays the map information. Video data input means 52 for inputting video data from surveillance cameras 60 installed at a plurality of points corresponding to the map information, and video data photographed by the video data input means 52 by the transmission means 51 via the network 70 Video data storage means 41 stored via the receiving means 42, video data display processing means 27 for reading and displaying the video data stored in the video data storage means 41, and every criminal's fixed time after the incident occurs Calculated by the escape range calculation means 24 for calculating the escape range corresponding to the map information and the escape range calculation means 24 Expected passage time zone calculation means 26 for calculating a predicted passage time zone for the criminal to pass for each corresponding video data input means 52 from a possible escape range every fixed time, and video data in the calculated expected passage time zone Video data time search means 28 that automatically reads out and displays from the data storage means 41 is provided.

  The map-linked video monitoring apparatus of this embodiment connects the monitoring camera 60 to the server-side video monitoring apparatus 40 that stores the video of each monitoring camera 60, and the video captured by the monitoring camera 60 is transmitted via the network 70. The camera-side video monitoring device 50 is transmitted to the server-side video monitoring device 40. Road map data and road network data are stored in a storage device 10 such as a disk.

  The map display processing device 20 includes a map data reading means 21, a road network reading means 22, a camera installation position storage means 23, an escapeable range calculation means 24, a map data display processing means 25, an expected passage time zone calculation means 26, an image. Data display processing means 27 and video data time searching means 28 are stored.

  On the other hand, the video data storage means 41 and its receiving means 42 are stored in the video monitoring device 40 on the server side. The video data input means 52 and its transmission means 51 are stored in the video monitoring device 50 on the camera side, and are connected to the receiving means 42 of the video monitoring device 40 on the server side through the network 70.

  The map data reading means 21 reads the map data necessary for display from the storage device 10 to the memory or the like of the map display processing device 20.

  FIG. 2 is a processing flowchart in the map cooperation video monitoring apparatus of the present invention. First, at the input step 101, the position and date of occurrence of the incident are input from an input device 80 such as a mouse or a keyboard connected to the map display processing device 20. 2, as shown in the map linkage video monitoring apparatus of FIG. 1, the storage device 10 stores the map data necessary for display, and the map data stored by the map data display processing means is designated and displayed. Stored by the map data display processing step for converting to scale and enabling display, the video data storage step for storing video data at a plurality of points corresponding to the map data by the video data storage means 41, and the video data display processing means 27. The video data display processing steps for reading and displaying the video data are displayed, but these steps are omitted. In this example, the example will be described on the assumption that an incident occurred on August 29, 2005 at 12:00.

  Next, in the escape possible range calculation step 102, the escape possible range for each elapsed time is calculated. The escape possible range is calculated by referring to the road network data read from the storage device 10 into the memory by the road network reading means 22 and calculated by the possible escape range calculating means 24. Since the actual calculation algorithm is known, the description is omitted. For example, in this embodiment, it is assumed that the escapeable range for several hours is calculated every 1 hour from 12:00 on August 29, 2005. In general, the data of the calculated escapeable range is expressed in a polygon shape.

  FIG. 3 is a screen of the display device that displays the escape possible range calculated by the escape possible range calculation means on a map. The circles near the center of FIG. 3 indicate the incident occurrence position, and the squares indicate the installation positions of the monitoring cameras A to D. In this example, it was set at 12:00 on August 29, 2005. The escapeable range calculated in the escapeable range calculation step 102 is displayed as a dotted polygon in FIG. In the example of FIG. 3, three possible escape ranges of 13:00 (escapeable range A), 14:00 (escapeable range B), and 15:00 (escapeable range C) are displayed.

  Next, in step 103, the next step 104 and expected passage time zone calculation step 105 are performed for all the monitoring cameras 60. In step 104, the minimum escapeable range including the surveillance camera 60 is calculated, and whether the surveillance camera 60 currently focused on is included in the polygon of each escapeable range calculated in the escapeable range calculation step 102. The inside / outside judgment of whether or not is performed, and the escape possible range with the shortest elapsed time is obtained. Taking FIG. 3 as an example, surveillance camera A is not included in escapeable range A (1 hour has elapsed), but is included for the first time in escapeable range B (2 hours have elapsed). This is a possible range B. Similarly, the surveillance camera B is an escapeable range B, the surveillance camera C is an escapeable range A, and the surveillance camera D is an escapeable range C.

  FIG. 4 is a diagram illustrating an example in which the installation positions of the monitoring cameras are stored. As shown in FIG. 4, information such as the camera name, installed latitude and longitude, the orientation of the surveillance camera, the installation height, and the installation date are stored in the camera installation position storage means 23, and the latitude, longitude, In step 104, the minimum escapeable range is calculated based on the inside / outside determination of the calculated escapeable range polygon.

  Next, in an estimated passage time zone calculation step 105, an expected passage time zone through which the criminal passes for each surveillance camera is calculated. For example, since the surveillance camera B is included in the escapeable range B (2 hours have elapsed), it can be seen that one hour or more from the occurrence of the incident is sufficient as the display start time. In other words, being included for the first time in the escapeable range B (2 hours have elapsed) means that the image of the surveillance camera B will not appear within one hour from the occurrence of the incident, no matter what means of transportation is used. .

  Similarly, surveillance camera A is 1 hour after the occurrence of the incident, surveillance camera C is within 1 hour from the occurrence of the incident, and surveillance camera D is 2 hours or more after the occurrence of the incident. Note that the end of the passage time is determined in advance as several hours from the start time. In this example, it is assumed that the start time is 3 hours.

  FIG. 5 is a diagram showing an example of an expected passage time zone for each monitoring camera calculated by the expected passage time zone calculation means. As shown in FIG. 5, surveillance camera A is 13:00 to 16:00, surveillance camera B is 13:00 to 16:00, surveillance camera C is 12:00 to 15:00, and surveillance camera D is 14:00. ~ 17: 00.

  Next, in the video data search step 106, the video of the expected passage time zone of each monitoring camera 60 calculated in the expected passage time zone calculation step 105 is automatically read out from the video data storage means 40 through the video data display processing means 27 and displayed. Process and display on display device 30.

  FIG. 6 is a screen of the display device that simultaneously displays both map data and video data on the display device. As shown in FIG. 6, the □ mark of the monitoring camera B displayed on the map is designated, and an image in the vicinity of the expected passing time zone (13: 0 to 16:00 in this embodiment) is displayed. can do. By using the camera installation direction shown in FIG. 4, it is possible to display the direction of the monitoring camera of the currently displayed video.

  In order to display the video of the expected passage time zone, it is possible to call the video of the expected passage time zone from the video data storage means 41 of the video monitoring device 40 and display it by the video data display processing means 27.

  FIG. 7 is a diagram in which video images of a plurality of surveillance cameras are simultaneously displayed in the same time zone. Surveillance camera B can display images from 13:00:00 to 16:00, surveillance camera C from 12:00 to 15:00, and surveillance camera D can display images from 14:00 to 17:00. The image is displayed.

  Here, in the case of the conventional method, when the video data is stored in the server in the same manner, in order to call up and display the video of the designated surveillance camera, the display is performed after the surveillance camera is designated. An operation of inputting and displaying the start date / time and the end date / time of the desired video one by one from a mouse or a keyboard is required. In addition, the start date / time and end date / time of the video input at this time are values appropriately input and displayed by the operator, and may not necessarily be a video in the correct time zone. Furthermore, designating the surveillance camera itself is also determined and displayed by the operator.

  However, in this embodiment, the surveillance camera is automatically selected in order of closeness based on the position and time of the incident occurrence, and the video of the optimal time zone in which the criminal is expected to pass through the surveillance camera is displayed. Is possible. Therefore, by associating the location and date of the incident with the position of each surveillance camera and the recorded time zone, the video data of the minimum necessary time zone can be automatically extracted and displayed. It becomes possible to investigate the criminal's steps efficiently.

  In this example, the elapsed time from the occurrence of the incident is shown, but conversely, when an incident occurs, it is also possible to check a video retroactively. Moreover, although the Example is shown as a criminal gait survey, it can also be used, for example, as a gait survey to the victim's damage site.

  As described above, according to the present embodiment, the position of the incident occurrence can be obtained by linking the map display device and the video monitoring device in comparison with the conventional method in which the video information such as a large number of video tapes is operated by humans. It is possible to automatically select the corresponding surveillance camera from the time and the time, and to easily display the video information of the estimated passing time zone for each selected surveillance camera, and more easily to the minimum necessary video It is possible to monitor and improve the efficiency when investigating the criminal gait after the incident occurs.

  Moreover, the map cooperation image | video monitoring apparatus of a present Example is applicable to the communication command system and operation information system mainly in the police.

It is a whole block diagram of the map cooperation image | video monitoring apparatus of this invention. It is a processing flow figure in the map cooperation picture surveillance device of the present invention. It is the screen of the display apparatus which displayed on the map the escape possible range calculated by the escape possible range calculation means of this invention. It is the figure which memorize | stored the installation position etc. of each surveillance camera of this invention. It is a figure which shows the example of the estimated passing time slot | zone for every monitoring camera calculated by the estimated passing time slot | zone calculation means of this invention. It is the screen of the display apparatus which displayed both the map data and video data of this invention simultaneously. It is a figure which shows the example of a display of the image | video display time slot | zone of this invention, and a monitoring image | video.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Memory | storage device, 20 ... Map display processing apparatus, 21 ... Map data reading means, 22 ... Road network reading means, 23 ... Camera installation position storage means, 24 ... Escapeable range calculation means, 25 ... Map data display processing means, 26 ... Expected passage time zone calculation means, 27 ... Video data display processing means, 28 ... Video data search means, 30 ... Display device, 40 ... Video monitoring device (server side), 41 ... Video data storage means, 42 ... Reception means , 50 ... Video monitoring device (camera side), 51 ... Video data input means, 52 ... Transmission means, 60 ... Surveillance camera, 70 ... Network, 80 ... Input device.

Claims (3)

  An input step for inputting the position and date and time of the incident occurrence, an escape possible range calculating step for calculating a possible escape range corresponding to the map data of the criminals after the incident occurrence every fixed time, and the calculated every fixed time A predicted passage time zone calculating step for calculating a predicted passage time zone for the criminal to pass from video data at a plurality of points corresponding to a possible escape range, and automatically calculating the video data in the calculated expected passage time zone. A map-linked video monitoring method comprising: a video data search step for enabling reading and display, wherein the video data in the estimated passage time zone is displayed on the screen together with the map data.   In Claim 1, The memory | storage step which memorize | stores the said map data, The map data display process step which converts the said memorize | stored map data into a designation | designated display scale, and makes it displayable, In several points corresponding to the said map data A video data input step for inputting video data from an installed surveillance camera, a video data storage step for storing the input video data, and a video data display for reading and storing the stored video data A map-linked video monitoring method comprising: a processing step. A storage device for storing map data necessary for display; map data display processing means for converting the map data read from the storage device into a designated display scale for display; and a plurality of points corresponding to the map data. Video data input means for inputting video data from an installed surveillance camera, video data storage means for storing the input video data, and reading and displaying the video data stored in the video data storage means Video data display processing means for enabling, escape range calculation means for calculating a possible escape range corresponding to the map data per fixed time of the criminal after the incident has occurred, and a constant calculated by the escape range calculation means An expected passage time zone calculating means for calculating an expected passage time zone of the criminal from the video data corresponding to the escapeable range for each time; Video data search means for automatically reading out and displaying the video data in the estimated passage time zone from the video data storage means, and displaying the video data in the expected passage time zone together with the map data on the screen A map-linked video monitoring apparatus comprising:

Images