JP2010238122A - Device, program and method for registration of event information - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To properly register event information as metadata of browsing target data. <P>SOLUTION: An event information registration device acquires the event information as information related to the browsing target data provided according to retrieval of a browser. Next, the event information registration device decides timing to register the event information as the metadata of the browsing target data based on at least one of a transition of a frequency at which the browsing target data are browsed by the browser, an emergency degree of a phenomenon indicated by the event information, and a target range of the phenomenon indicated by the event information. The event information registration device registers the acquired event information as the metadata of the browsing target data when deciding that the timing is timing to perform the registration. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an event information registration device, an event information registration program, and an event information registration method.

  2. Description of the Related Art Conventionally, there are many systems that provide browsing object data according to a search by a viewer. A system is generally known in which metadata is registered in advance in association with browsing target data, and corresponding browsing target data is searched with a matching relationship between a keyword input by a viewer and the metadata.

  For this reason, in such a system, how to register metadata in the browsing target data is important. For example, a technique for registering metadata in a document to be browsed based on an access correlation between documents and a keyword extracted from the document is disclosed.

JP 2005-18530 A

  However, the above-described conventional technique has a problem that it is difficult to appropriately register event information as metadata of browsing target data. That is, in the case of registering fixed information as metadata, since the relationship between the browsing object data and the information is considered to be fixed, it may be simply registered in advance. On the other hand, when event information is registered as metadata, the event information is often fluid information, and the relationship between the browsing target data and the event information is considered fluid. If you do not register with, it will not be useful as search information.

  For example, if fixed information such as the name of the camera and information on the installation location is registered in the video data of the surveillance camera, it may simply be registered in advance. On the other hand, when registering event information such as disaster information, if the timing is too early, there is a possibility that the information is not accurate as search information, and if it is too late, there is a possibility that the opportunity to be searched has already been missed. .

  The disclosed technology has been made in view of the above, and provides an event information registration apparatus, an event information registration program, and an event information registration method capable of appropriately registering event information as metadata of browsing target data The purpose is to do.

  The event information registration device, the event information registration program, and the event information registration method disclosed in the present application are, in one aspect, an event that acquires event information as information related to browsing target data provided in response to a search by a viewer An information acquisition unit is provided. Further, based on at least one of the transition of the number of times the browsing target data is browsed by the viewer, the urgency of the event indicated by the event information acquired by the event information acquisition unit, or the target range of the event indicated by the event information And a determination unit that determines a timing for registering the event information as information for searching the browsing target data. In addition, a registration unit is provided for registering the event information acquired by the event information acquisition unit as information for searching the browsing target data when it is determined by the determination unit that the registration timing is reached.

  According to one aspect of the event information registration device, the event information registration program, and the event information registration method disclosed in the present application, it is possible to appropriately register event information as metadata of browsing target data.

FIG. 1 is a diagram for explaining an overview of the event information registration apparatus according to the first embodiment. FIG. 2 is a diagram for explaining the overall configuration of the camera search system according to the first embodiment. FIG. 3 is a block diagram illustrating the configuration of the camera search system according to the first embodiment. FIG. 4 is a diagram for explaining the camera metadata storage unit. FIG. 5 is a diagram for explaining the camera metadata registration unit. FIG. 6 is a diagram for explaining the urgency information storage unit. FIG. 7 is a diagram for explaining the target range information storage unit. FIG. 8 is a diagram for explaining the determination line setting unit. FIG. 9 is a diagram for explaining the viewer information storage unit. FIG. 10 is a flowchart illustrating a processing procedure performed by the temporary registration unit. FIG. 11 is a flowchart illustrating a processing procedure performed by the determination line setting unit. FIG. 12 is a flowchart illustrating a processing procedure performed by the determination unit. FIG. 13 is a flowchart illustrating a processing procedure performed by the camera metadata deletion unit. FIG. 14 is a flowchart illustrating a processing procedure performed by the camera video providing unit. FIG. 15 is a diagram illustrating a computer that executes an event information registration program.

  Embodiments of an event information registration device, an event information registration program, and an event information registration method disclosed in the present application will be described below in detail with reference to the drawings. Note that the present invention is not limited to the embodiments.

[Outline of Event Information Registration Device According to Embodiment 1]
First, the outline of the event information registration apparatus according to the first embodiment will be described with reference to FIG. FIG. 1 is a diagram for explaining an overview of the event information registration apparatus according to the first embodiment.

  As shown in FIG. 1, in the first embodiment, the event information registration device registers event information as metadata, and the search device provides browsing target data in response to a viewer's search. As will be described later, in the first embodiment, the browsing target data is video data of the surveillance camera.

  The event information registration device first acquires event information as information related to browsing target data. For example, the event information registration apparatus acquires various information such as river information, disaster information, weather information, and road information from each system as event information.

  Next, the event information registration device meta-datas the event information based on at least one of the transition of the number of times the browsing target data is browsed by the viewer, the urgency level of the event indicated by the event information, and the target range of the event. The timing to register as data is determined. For example, in the event information registration device, when the event information acquired from the river information system is “10-minute rainfall exceeded the warning value”, the transition of the number of browsing times and the urgency level of the event are “high” In other words, the registration timing is determined based on at least one of the target range of the event being “medium”.

  When the event information registration device determines that it is the registration timing, it registers the acquired event information as metadata.

  For this reason, according to the first embodiment, event information can be appropriately registered in association with browsing target data. That is, the event information registration apparatus according to the first embodiment does not register the event information as metadata in the dark cloud when acquiring the event information, but determines the registration timing and registers at the timing. The registration timing should be different depending on the point that the number of times the corresponding video data has been viewed will change within a certain period when an event occurs, and depending on the urgency and scope of the event. It is adjusted by paying attention to the point that it should be.

  As described above, according to the first embodiment, the event information is registered at an appropriately adjusted timing, so that the event information is registered accurately and in a timely manner.

[Configuration of Camera Search System in Embodiment 1]
Next, the configuration of the camera search system according to the first embodiment will be described with reference to FIGS. FIG. 2 is a diagram for explaining the overall configuration of the camera search system according to the first embodiment.

  As shown in FIG. 2, the camera search system according to the first embodiment searches for a monitoring camera desired by a viewer from a large number of monitoring cameras scattered in a wide area, and an image captured by the searched monitoring camera. This system provides data to viewers. Each surveillance camera and the terminal of the viewer are all connected to an IP (Internet Protocol) network. Moreover, the video data image | photographed with each monitoring camera is encoded and transmitted by IP-ENC (Encoder).

  In addition, event information such as river information is transmitted from each system such as a river information system, a disaster information system, a weather information system, and a road information system, and is registered in the camera metadata storage unit. Then, the camera search device searches for a surveillance camera using event information in addition to fixed information registered in the camera metadata storage unit.

  In FIG. 2, only the camera search device and the camera metadata storage unit are illustrated for convenience of explanation. However, as shown in FIG. 3, the camera search system includes a camera search device and an event information registration device. The camera metadata storage unit is provided in the event information registration device. FIG. 3 is a block diagram illustrating the configuration of the camera search system according to the first embodiment. Hereinafter, the event information registration device 10 and the camera search device 20 will be described in this order.

  The event information registration device 10 includes a camera metadata storage unit 11, an event information acquisition unit 12, a camera metadata registration unit 13, and a camera metadata deletion unit 14.

  The camera metadata storage unit 11 stores camera metadata as information for searching video data. Specifically, the camera metadata storage unit 11 is connected to the camera metadata registration unit 13, the camera metadata deletion unit 14, and the camera video providing unit 21, and is registered by the camera metadata registration unit 13. Store camera metadata. In the camera metadata storage unit 11, the camera metadata is deleted by the camera metadata deletion unit 14. The camera metadata stored in the camera metadata storage unit 11 is used for processing by the camera video providing unit 21.

  For example, the camera metadata storage unit 11 stores information as shown in FIG. That is, as shown in FIG. 4, the camera metadata storage unit 11 stores fixed information such as “camera number”, “name”, “installation location”, “installation purpose”, and “video stream information”. The event information is also stored. While fixed information such as “camera number”, “name”, “installation location”, “installation purpose”, and “video stream information” is registered in advance, event information is appropriately adjusted as described later. Registered and deleted at the timing. FIG. 4 is a diagram for explaining the camera metadata storage unit.

  The event information acquisition unit 12 acquires event information as information related to video data of the monitoring camera. Specifically, the event information acquisition unit 12 is connected to each system, the camera metadata registration unit 13, and the camera metadata deletion unit 14, and acquires event information transmitted from each system. The event information acquisition unit 12 transmits the acquired event information to the camera metadata registration unit 13 and the camera metadata deletion unit 14 respectively.

  For example, the event information acquisition unit 12 acquires river information from the river information system such as “the amount of rainfall over 50 mm. It is within 500 m of the observation point”. In addition, the event information acquisition unit 12 acquires disaster information such as “a fire has occurred. A fire occurrence point is within 1 km” from the disaster information system. In addition, the event information acquisition unit 12 acquires weather information such as “A heavy rain flood warning has been issued. Within the area” from the weather information system. In addition, the event information acquisition unit 12 acquires road information such as “a road closure has occurred within 500 m from the point” from the road information system. The event information described above is merely an example, and can be applied to the case where other information is acquired as event information from other systems.

  The camera metadata registration unit 13 registers the event information acquired by the event information acquisition unit 12 as camera metadata. Specifically, the camera metadata registration unit 13 is connected to the event information acquisition unit 12, the camera video providing unit 21, and the camera metadata storage unit 11, and the event information acquired by the event information acquisition unit 12 Register as camera metadata in the metadata storage unit 11. Details of the camera metadata registration unit 13 will be described later.

  The camera metadata deletion unit 14 deletes the camera metadata according to the event information acquired by the event information acquisition unit 12. Specifically, when the event information acquired by the event information acquisition unit 12 is, for example, event information for notifying recovery, the camera metadata deletion unit 14 specifies the corresponding monitoring camera, and the camera metadata The corresponding event information is deleted from the camera metadata stored in the storage unit 11.

  Next, details of the camera metadata registration unit 13 will be described with reference to FIGS. FIG. 5 is a diagram for explaining the camera metadata registration unit.

  As shown in FIG. 5, the camera metadata registration unit 13 includes a temporary registration unit 13a, a determination line setting unit 13b, a browsing count unit 13e, a determination unit 13g, and a registration unit 13h. The event information transmitted from the event information acquisition unit 12 is received by the temporary registration unit 13a and the determination line setting unit 13b. The browsing count unit 13e is connected to a camera video providing unit 21 described later, and the registration unit 13h is connected to the camera metadata storage unit 11.

  The temporary registration unit 13a temporarily registers camera metadata. Specifically, the temporary registration unit 13a is connected to the event information acquisition unit 12 and the registration unit 13h, and temporarily holds event information transmitted from the event information acquisition unit 12. The event information temporarily held by the temporary registration unit 13a is transmitted to the registration unit 13h to be used for processing by the registration unit 13h at the registration timing.

  The determination line setting unit 13b sets a determination line for determining the timing for registering event information as camera metadata. Specifically, the determination line setting unit 13b is connected to the event information acquisition unit 12 and the determination unit 13g, and further includes an urgency information storage unit 13c and a target range information storage unit 13d.

  The determination line setting unit 13b according to the first embodiment refers to the urgency information storage unit 13c and the target range information storage unit 13d using the event information transmitted from the event information acquisition unit 12. Then, the determination line setting unit 13b sets a determination line using information acquired from the urgency information storage unit 13c and the target range information storage unit 13d, and transmits the set determination line to the determination unit 13g.

  For example, the urgency information storage unit 13c stores information as illustrated in FIG. In other words, the urgency information storage unit 13c stores an event urgency level, event information classified into the urgency level, and a value of the number of browsing times to be corrected according to the urgency level. FIG. 6 is a diagram for explaining the urgency information storage unit.

  For example, the target range information storage unit 13d stores information as illustrated in FIG. That is, the target range information storage unit 13d stores the target range of the event, the event information classified into the target range, and the inclination of the determination line to be set according to the target range in association with each other. FIG. 7 is a diagram for explaining the target range information storage unit.

  Then, the determination line setting unit 13b sets a determination line as illustrated in FIG. 8, for example, using information acquired from the urgency information storage unit 13c and the target range information storage unit 13d. FIG. 8 is a diagram for explaining the determination line setting unit.

  That is, for example, when the event information is received from the event information acquisition unit 12, the determination line setting unit 13 b refers to the emergency level information storage unit 13 c using the event information, and corrects according to the emergency level of the event indicated by the event information Get the value of the number of times to be viewed. Further, the determination line setting unit 13b refers to the target range information storage unit 13d using the event information, and acquires the inclination of the determination line to be set according to the urgency level of the event indicated by the event information. Subsequently, the determination line setting unit 13b determines a monitoring start time (for example, after 10 minutes) and a monitoring time length (for example, 120 minutes).

  In this way, the determination line setting unit 13b sets a determination line as shown in FIG. 8, for example. The length of the monitoring time corresponds to the “monitoring time zone” in FIG. 8, and the determination line is set in the “monitoring time zone”. The start point of the monitoring time zone is set to a time delayed by “time to start monitoring” from the time when “an event such as an alarm occurs”. In addition, a value obtained by adding “a value of the number of browsing times to be corrected” to “a normal number of browsing times” (for example, an average value of the number of browsing times) is set as an initial value of the Y axis of the determination line.

  Here, the meaning of “the value of the number of browsing times to be corrected” and “the inclination of the determination line” will be described again. As shown in FIG. 6, the “value of the number of browsing times to be corrected” is a smaller value as the degree of urgency is higher in the first embodiment. If so, the initial value of the determination line is set lower as the degree of urgency is higher as the positioning in the determination line as shown in FIG. In addition, as shown in FIG. 7, the “inclination of the determination line” is larger as the target range is narrower in the first embodiment. If so, the positioning in the determination line as shown in FIG. 8 is set with a steep inclination as the target range is narrower.

  In this sense, the event information registration apparatus 10 according to the first embodiment uses the number of times of browsing as a threshold for associating event information with video data accurately and in a timely manner. At this time, when the urgency of the event information is high, it is assumed that the viewer who browses the video data mostly wants to browse the event. That is, it is considered that the correlation between the event information and the number of browsing times is strong. Therefore, even if the event information is associated with the video data at an early stage, the event information should accurately represent the content of the video data.

  In addition, when the target range of event information is wide, the number of times that the video data is viewed is thought to increase gradually. However, when the target range is narrow, the video data of the surrounding surveillance cameras may be viewed as soon as possible. it is conceivable that. For this reason, it is necessary to increase the accuracy by making the inclination steep.

  Returning to FIG. 5, the browsing frequency counting unit 13 e counts the browsing frequency. Specifically, the browsing frequency counting unit 13e is connected to the camera video providing unit 21 and the determination unit 13g, and includes a browser information storage unit 13f.

  The browsing count unit 13e in the first embodiment, when notified from the camera video providing unit 21 of the browsing and the viewer attribute, refers to the viewer information storage unit 13f using the viewer attribute, Correct the number of browsing and count. In addition, the browsing number counting unit 13e transmits the corrected count result to the determination unit 13g.

  For example, the viewer information storage unit 13f stores information as illustrated in FIG. That is, the viewer information storage unit 13f stores the attribute of the viewer and the value of the number of browsing times to be corrected in association with each other. FIG. 9 is a diagram for explaining the viewer information storage unit.

  Here, the meaning of “the value of the number of browsing times to be corrected” will be described. As shown in FIG. 9, the “value of the number of browsing times to be corrected” is corrected to a large value in the first embodiment, for example, if it is a supervisor at the office in charge, and is not corrected by ordinary citizens. In this sense, the event information registration apparatus 10 according to the first embodiment uses the number of times of browsing as a threshold for associating event information with video data accurately and in a timely manner. At this time, since the number of times of browsing may increase unnecessarily, it is intended to increase accuracy by weighting, for example, people engaged in disaster countermeasures.

  Returning to FIG. 5, the determination unit 13 g determines the timing for registering the camera metadata by determining whether or not the number of browsing times exceeds the determination line. Specifically, the determination unit 13g is connected to the browsing number counting unit 13e, the determination line setting unit 13b, and the registration unit 13h, and receives the count result transmitted from the browsing number counting unit 13e. Then, the determination unit 13g determines whether the value of the count result exceeds the determination line using the determination line transmitted from the determination line setting unit 13b, and determines that it is time to register the camera metadata. Then, the registration unit 13h is notified.

  The registration unit 13h registers event information as camera metadata. Specifically, the registration unit 13h is connected to the determination unit 13g, the temporary registration unit 13a, and the camera metadata storage unit 11, and when receiving a registration timing notification from the determination unit 13g, the registration unit 13h temporarily stores the temporary registration unit 13a. The stored event information is registered in the camera metadata storage unit 11.

  Now, returning to FIG. 3, the camera device 20 will be described. As shown in FIG. 3, the camera device 20 includes a camera video providing unit 21.

  The camera video providing unit 21 provides video data in response to a viewer search. Specifically, the camera video providing unit 21 is connected to the browsing count unit 13e of the camera metadata registration unit 13 and the camera metadata storage unit 11. When receiving a search request from a viewer, the camera video providing unit 21 refers to the camera metadata storage unit 11 using a keyword input by the viewer and provides video data of the corresponding monitoring camera. In addition, when the camera video providing unit 21 provides video data to the viewer, the camera video providing unit 21 notifies the browsing number counting unit 13e together with information (for example, video stream information) indicating which video data has been browsed.

[Processing Procedure by Event Information Registration Device According to Embodiment 1]
Next, a processing procedure performed by the event information registration apparatus according to the first embodiment will be described with reference to FIGS. Hereinafter, a processing procedure by the temporary registration unit 13a, a processing procedure by the determination line setting unit 13b, a processing procedure by the determination unit 13g, a processing procedure by the camera metadata deletion unit 14, and a processing procedure by the camera video providing unit 21 will be described in order.

  First, the processing procedure by the temporary registration unit 13a will be described with reference to FIG. FIG. 10 is a flowchart illustrating a processing procedure performed by the temporary registration unit.

  As illustrated in FIG. 10, the temporary registration unit 13a determines whether event information has been received (step S101). Specifically, the temporary registration unit 13a determines whether or not event information transmitted from the event information acquisition unit 12 has been received. If it is determined that the event information has not been received (No at Step S101), the temporary registration unit 13a returns to the process of determining whether or not the event information has been received.

  On the other hand, if it is determined that the event information has been received (Yes at Step S101), the temporary registration unit 13a then identifies the corresponding monitoring camera using the position information included in the event information (Step S102). . Specifically, the event information generally includes latitude and longitude indicating the position where the event has occurred as position information. On the other hand, the camera metadata stored in the camera metadata storage unit 11 also includes latitude and longitude indicating the installation location of the surveillance camera as fixed information. For this reason, the temporary registration unit 13a identifies the corresponding monitoring camera using the latitude and longitude information included in the event information.

  Subsequently, the temporary registration unit 13a temporarily registers camera metadata (step S103). Specifically, the temporary registration unit 13a temporarily holds the event information received in step S101 in a state in which the association with the monitoring camera specified in step S102 is known. For example, the temporary registration unit 13a temporarily stores event information in association with moving image stream information (URI: Uniform Resource Indicator, etc.) of the corresponding monitoring camera.

  Next, a processing procedure performed by the determination line setting unit 13b will be described with reference to FIG. FIG. 11 is a flowchart illustrating a processing procedure performed by the determination line setting unit.

  As shown in FIG. 11, first, the determination line setting unit 13b determines whether event information has been received (step S201). Specifically, the determination line setting unit 13b determines whether event information transmitted from the event information acquisition unit 12 has been received. If it is determined that the event information has not been received (No at Step S201), the determination line setting unit 13b returns to the process of determining whether it has been received.

  On the other hand, if the determination line setting unit 13b determines that the event information has been received (Yes in step S201), the event line information is used to refer to the urgency information storage unit 13c to determine the urgency level of the event indicated by the event information. The value of the number of browsing times to be corrected accordingly is acquired (step S202).

  Further, the determination line setting unit 13b refers to the target range information storage unit 13d using the event information, and acquires the inclination of the determination line that should be set according to the urgency of the event indicated by the event information (step S203). .

  Further, the determination line setting unit 13b determines the time for starting monitoring (for example, after 10 minutes) and the length of the monitoring time (for example, 120 minutes) (step S204).

  Then, the determination line setting unit 13b sets a determination line and transmits the set determination line to the determination unit 13g (step S205).

  Next, a processing procedure performed by the determination unit 13g will be described with reference to FIG. FIG. 12 is a flowchart illustrating a processing procedure performed by the determination unit.

  As illustrated in FIG. 12, the determination unit 13g determines whether or not a determination line has been set (step S301). Specifically, the determination unit 13g determines whether a determination line is notified from the determination line setting unit 13b. When the determination line is not notified (No at Step S301), the determination unit 13g returns to the process of determining whether or not the determination line is notified.

  On the other hand, when the determination line is notified (Yes at Step S301), the determination unit 13g determines whether the video data of the corresponding monitoring camera has been viewed by the viewer (Step S302). If not viewed by the viewer (No at step S302), the determination unit 13g returns to the process of determining whether the viewer has browsed.

  On the other hand, when viewed by the viewer (Yes at Step S302), the determination unit 13g uses the determination line transmitted from the determination line setting unit 13b, and the value of the count result transmitted from the browsing count unit 13e. It is determined whether or not exceeds the determination line (step S303). Note that the value of the count result transmitted from the browsing count unit 13e is a value corrected using the attributes of the viewer.

  When the value of the count result does not exceed the determination line (No at Step S303), the determination unit 13g returns to the process at Step S302. On the other hand, when the determination line is exceeded (Yes at Step S303), the determination unit 13g determines that it is time to register the camera metadata and notifies the registration unit 13h. Then, the registration unit 13h registers the event information temporarily stored in the temporary registration unit 13a in the camera metadata storage unit 11 (step S304).

  For example, in the temporary registration unit 13a, event information is stored in association with moving image stream information (such as a URI) of the corresponding monitoring camera. Therefore, when the registration unit 13h refers to the camera metadata storage unit 11 using the video stream information and identifies the corresponding camera metadata, it registers the event information in the “event information” field of the identified camera metadata. To do.

  Next, a processing procedure performed by the camera metadata deletion unit will be described with reference to FIG. FIG. 13 is a flowchart illustrating a processing procedure performed by the camera metadata deletion unit.

  As shown in FIG. 13, first, the camera metadata deletion unit 14 determines whether or not event information for notifying recovery has been received (step S401). Specifically, the camera metadata deletion unit 14 determines whether or not event information notifying the recovery from the event information acquisition unit 12 has been received. If it is determined that the event information notifying the recovery has not been received (No at Step S401), the camera metadata deleting unit 14 returns to the process of determining whether or not the event information has been received.

  On the other hand, if the camera metadata deletion unit 14 determines that the event information for notifying the recovery has been received (Yes at step S401), the camera metadata deletion unit 14 identifies the corresponding monitoring camera using the position information included in the event information ( Step S402). Specifically, the event information generally includes latitude and longitude indicating the position where the event has occurred as position information. On the other hand, the camera metadata stored in the camera metadata storage unit 11 also includes latitude and longitude indicating the installation location of the surveillance camera as fixed information. For this reason, the camera metadata deletion unit 14 specifies the corresponding monitoring camera using the latitude and longitude information included in the event information.

  Then, the camera metadata deletion unit 14 deletes the camera metadata according to the event information acquired by the event information acquisition unit 12 (step S403).

  Next, a processing procedure by the camera video providing unit will be described with reference to FIG. FIG. 14 is a flowchart illustrating a processing procedure performed by the camera video providing unit.

  As shown in FIG. 14, the camera video providing unit 21 determines whether a search request from a viewer has been accepted (step S501). When the search request is not received (No at Step S501), the camera image providing unit 21 returns to the process of determining whether or not the search request from the viewer is received.

  On the other hand, when a search request is received (Yes at step S501), the camera video providing unit 21 refers to the camera metadata storage unit 11 using a keyword input by the viewer and identifies all corresponding surveillance cameras. Then, the list is displayed to the viewer (step S502).

  Subsequently, the camera video providing unit 21 determines whether or not the selection by the viewer of the target surveillance camera has been accepted (step S503). If the selection has not been accepted (No at Step S503), the camera image providing unit 21 returns to the process of determining whether the selection has been accepted and stands by.

  On the other hand, if it is determined that the selection has been accepted (Yes at step S503), the camera video providing unit 21 provides video data (step S504). Specifically, the camera video providing unit 21 transmits the video stream information of the corresponding monitoring camera to the viewer's terminal. Then, the viewer can receive provision of desired video data by accessing the surveillance camera using the received video stream information.

[Effect of Example 1]
As described above, in the event information registration apparatus 10 according to the first embodiment, the event information acquisition unit 12 acquires event information as information related to video data of a monitoring camera provided in response to a search by a viewer. To do. Next, the camera metadata registration unit 13 is based on at least one of the transition of the number of times that the video data is browsed by the viewer, the urgency of the event indicated by the event information, or the target range of the event indicated by the event information. The timing for registering event information as metadata of video data is determined. When the camera metadata registration unit 13 determines that it is the timing to register, the camera metadata registration unit 13 registers event information as metadata of video data.

  For this reason, according to the first embodiment, event information can be appropriately registered in association with video data. That is, when the event information is acquired, the event information registration apparatus 10 according to the first embodiment does not register the event information as metadata in the dark cloud, but determines the registration timing and registers at that timing. The registration timing should be different depending on the point that the number of times the corresponding video data has been viewed will change within a certain period when an event occurs, and depending on the urgency and scope of the event. It is adjusted by paying attention to the point that it should be. As described above, according to the first embodiment, the event information is registered at an appropriately adjusted timing, so that the event information is registered accurately and in a timely manner.

  As a result, the viewer can more easily find the target surveillance camera from among a large number of surveillance cameras scattered in a wide area. That is, until now, event information such as disaster information could not be registered at an appropriate timing, and was not useful for the search of the viewer. However, according to the first embodiment, attention is paid to the dramatic increase in browsing of the corresponding monitoring camera when a disaster or the like occurs, and it is registered as camera metadata at a timing adjusted according to the characteristics of the event. To do. Then, the viewer can search for the corresponding surveillance camera from the disaster name such as “Typhoon No. 20” or “West heavy rain warning in Tokyo, 23 wards” without knowing the name or installation location of the camera. It becomes like this.

  In addition, the camera metadata registration unit 13 according to the first embodiment adjusts the number of times according to the degree of the influence of the viewer attribute on the number of times of browsing when determining the timing based on the transition of the number of times of browsing. Then, the timing is determined based on the transition of the adjusted number of times. For this reason, according to the first embodiment, the event information is registered at a highly accurate timing.

[Other embodiments]
Although the first embodiment of the present invention has been described so far, the present invention may be implemented in various different forms other than the first embodiment described above.

[System configuration, etc.]
The processing procedures (FIGS. 10 to 14), specific names, information including various data and parameters shown in the document and drawings can be arbitrarily changed unless otherwise specified.

  In addition, each component of each illustrated device is functionally conceptual, and does not necessarily need to be physically configured as illustrated (FIGS. 3, 5, etc.). In other words, the specific form of distribution / integration of each device is not limited to that shown in the figure, and all or a part thereof may be functionally or physically distributed or arbitrarily distributed in arbitrary units according to various loads or usage conditions. Can be integrated and configured. Further, all or any part of each processing function performed in each device is realized by a CPU (Central Processing Unit) and a program analyzed and executed by the CPU, or hardware by wired logic. Can be realized as

[Computer]
The various processes described in the above embodiments can be realized by executing a program prepared in advance on a computer such as a personal computer or a workstation. In the following, an example of a computer that executes an event information registration program having the same function as that of the above embodiment will be described with reference to FIG. FIG. 15 is a diagram illustrating a computer that executes an event information registration program.

  As shown in FIG. 15, the event information registration program (computer) 30 connects a cache 31, a RAM (Random Access Memory) 32, an HDD (Hard Disk Drive) 33, a ROM (Read Only Memory) 34, and a CPU 35 via a bus 36. Configured. Here, in the ROM 34, an event information registration program that exhibits the same function as in the above embodiment, that is, as shown in FIG. 15, an event information acquisition program 34a, a temporary registration program 34b, a judgment line setting program 34c, and a browsing A number count program 34d, a determination program 34e, a registration program 34f, and a camera metadata deletion program 34g are provided.

  Then, the CPU 35 reads and executes these programs 34a to 34g, so that each program 34a to 34g has an event information acquisition process 35a, a temporary registration process 35b, a determination line setting process 35c, as shown in FIG. A browsing frequency counting process 35d, a determination process 35e, a registration process 35f, and a camera metadata deletion process 35g. Each of the processes 35a to 35g includes the event information acquisition unit 12, the temporary registration unit 13a, the determination line setting unit 13b, the browsing count unit 13e, the determination unit 13g, the registration unit 13h, and the camera metadata illustrated in FIGS. Each corresponds to the deletion unit 14.

  Further, as shown in FIG. 15, the HDD 33 includes a camera metadata table 33a, an urgency information table 33b, a target range information table 33c, and a viewer information table 33d. Each of the tables 33a to 33d corresponds to the camera metadata storage unit 11, the emergency level information storage unit 13c, the target range information storage unit 13d, and the viewer information storage unit 13f illustrated in FIGS.

  By the way, the above-described programs 34a to 34g are not necessarily stored in the ROM 34. For example, a flexible disk (FD), a CD-ROM, an MO disk, a DVD disk, and a magneto-optical disk to be inserted into the computer 30. "Portable physical medium" such as an IC card, or "fixed physical medium" such as a hard disk drive (HDD) provided inside or outside the computer 30, and further, a public line, the Internet, a LAN (Local Area Network) ), Or “another computer (or server)” connected to the computer 30 via a WAN (Wide Area Network) or the like, and the computer 30 may read and execute the program from these.

DESCRIPTION OF SYMBOLS 10 Event information registration apparatus 11 Camera metadata storage part 12 Event information acquisition part 13 Camera metadata registration part 13a Temporary registration part 13b Judgment line setting part 13c Urgency information storage part 13d Target range information storage part 13e Browse frequency count part 13f Browse Person information storage unit 13g determination unit 13h registration unit 14 camera metadata deletion unit 20 camera search device 21 camera image providing unit

Claims (5)

An event information acquisition unit that acquires event information as information related to browsing target data provided in response to a search by a viewer;
At least one of the transition of the number of times the browsing target data is browsed by the viewer, the urgency level of the event indicated by the event information acquired by the event information acquisition unit, or the target range of the event indicated by the event information Based on the determination unit for determining the timing of registering the event information as metadata of the browsing target data,
An event characterized by comprising: a registration unit that registers event information acquired by the event information acquisition unit as metadata of the browsing target data when it is determined by the determination unit that the timing is registered Information registration device. The browsing object data is video data taken by a surveillance camera,
The event information acquisition unit acquires information on a disaster photographed by the monitoring camera as the event information,
The event according to claim 1, wherein the determination unit determines the timing based on at least one of a transition of the number of times viewed, an emergency level of the disaster, or a range of the disaster. Information registration device.   When the determination unit determines the timing based on the transition of the number of times viewed, the determination unit adjusts the number of times according to the degree of influence of the viewer's attribute on the number of times viewed, and after adjustment The event information registration apparatus according to claim 1, wherein the timing is determined based on a transition of the number of times. Event information acquisition procedure for acquiring event information as information related to browsing target data provided in response to a search by a viewer;
At least one of the transition of the number of times the browsing target data is browsed by the viewer, the urgency level of the event indicated by the event information acquired by the event information acquisition procedure, or the target range of the event indicated by the event information A determination procedure for determining the timing of registering the event information as metadata of the browsing target data based on
When it is determined that it is a timing to register by the determination procedure, the computer executes a registration procedure for registering event information acquired by the event information acquisition procedure as metadata of the browsing target data, Event information registration program. Event information acquisition step for acquiring event information as information related to browsing target data provided in response to a search by a viewer;
At least one of the transition of the number of times the browsing target data is browsed by the viewer, the urgency level of the event indicated by the event information acquired by the event information acquisition step, or the target range of the event indicated by the event information A determination step for determining a timing for registering the event information as metadata of the browsing target data based on
A registration step of registering the event information acquired by the event information acquisition step as metadata of the browsing target data when it is determined that it is a timing of registration by the determination step; Information registration method.

Images