JP5131131B2 - Display system and display control method - Google Patents

Description

  The present invention relates to a display system and a display control method in which each person in a predetermined area can easily know attribute information such as an authentication state of another person around him / her.

  In recent years, there are an increasing number of systems that provide services according to the result of personal authentication, such as an entrance / exit management system that opens a door when authentication is performed. In addition, a system has been proposed in which convenience and security are improved by tracking an authenticated person and grasping positions of an authenticated person and an unauthenticated person. For example, Patent Document 1 proposes a system that tracks a person who has performed authentication and provides a service when only the authenticated person is within the service usage range. This system prevents unauthorized use of a service by interrupting service provision until an unauthenticated person enters the service usage area until the person leaves the service usage area.

  In the system proposed in Patent Document 1 above, as long as an unauthenticated person is within the service usage range, the authenticated person cannot receive the service. For this reason, in order for the authenticated person to receive the service, it is necessary to take an action such as keeping the unauthenticated person away from the service usage area. As described above, in a system that provides services by tracking authenticated persons, a mechanism is required that allows a user to know at a glance what authentication status a person in the service usage area is currently in.

  Patent Documents 2 and 3 disclose a technique for displaying the authentication status of a person who is in the service usage range. In Patent Document 2, the movement of a designated person is tracked by using a camera image, and a colored rectangle or the like surrounding the person is superimposed on the captured image so that the designated person can be easily seen. A method of displaying is disclosed. Further, in Patent Document 3, a person is tracked using a video, an image such as a face characterizing the person is recorded, and a feature image of the designated person is superimposed on a live video to identify the person. A facilitating method is disclosed.

JP 9-297735 A JP 2005-347905 A JP 2006-93955 A

  However, although the above-mentioned prior art was able to display an unauthenticated person in an easy-to-understand manner for the supervisor, in order to inform the users in the service area of the authentication status of surrounding people It was not suitable. In other words, since the related art displays information related to the authentication status on the monitor, only people near the monitor can know the authentication status of the surrounding people.

  The disclosed technology has been made to solve the above-described problems caused by the conventional technology, and each person in a predetermined area can easily obtain attribute information such as the authentication status of other persons around him. It is an object to provide a display system and a display control method that can be known.

  In order to solve the above-described problems and achieve the object, a display system disclosed in the present application, in one aspect, detects a current position of each person located in a predetermined area and tracks each person. Storage means for storing attribute information relating to each person, and a predetermined range of the floor surface corresponding to the current position of each person acquired by the person tracking means for each person stored in the storage means. And floor surface control means for changing according to the attribute information.

  According to this aspect, it is possible to control the appearance of the floor surface at the position where the person is present to be different depending on the attribute of each person, and each person in the predetermined area is in an authentication state of other persons around him / her. It is possible to easily know attribute information such as.

  In order to solve the above-described problems, a display system disclosed in the present application may be applied to any method, apparatus, system, computer program, recording medium, data structure, or the like. It is valid.

  According to one aspect of the display system and the display control method disclosed in the present application, each person in a predetermined area can easily know attribute information such as an authentication state of another person around him / her. There is an effect.

  Exemplary embodiments of a display system and a display control method disclosed in the present application will be described below in detail with reference to the accompanying drawings.

  First, an overview of a display system according to the present embodiment will be described with reference to FIG. As shown in FIG. 1, the display system according to the present embodiment has a floor surface 2 that can partially change the color and pattern. For example, when there are persons 1a to 1i on the floor 2, and the persons 1d and 1h are unauthenticated and other persons have been authenticated, the display system according to the present embodiment can display the foot of the person 1d. The color and pattern of the area 2a and the area 2b at the foot of the person 1h are changed from those of other parts.

  In this way, by controlling the color and pattern of the area of the foot of an unauthenticated person to be different from the area of the foot of the authenticated person, who has been authenticated by all persons on the floor 2 It is possible to easily determine who is unauthenticated.

  Next, the configuration of the display system according to the present embodiment will be described. FIG. 2 is a diagram illustrating the overall configuration of the display system according to the present embodiment. As illustrated in FIG. 2, the display system according to the present embodiment includes a floor surface 2, imaging devices 3 a to 3 c, an authentication device 4, and a control device 5.

  The floor 2 partially changes the color and pattern based on the control signal transmitted from the control device 5. For example, the floor surface 2 may be formed by combining a light emitting panel that emits a single color or one of a plurality of colors, or a liquid crystal panel or an LED (Light Emitting Diode) panel. Further, a panel that can individually switch colors and on / off in units of elements may be combined.

  The imaging devices 3a to 3c capture images within the monitoring range. Note that the number of the imaging devices 3 is not limited to three. The authentication device 4 receives input of authentication information. The authentication information that the authentication device 4 receives input may be biometric information such as fingerprint information, or may be a password stored in a medium such as an IC card.

  The control device 5 tracks each person who moves within the monitoring range based on the images taken by the imaging devices 3a to 3c, and grasps the current positions of those people. In addition, when authentication is performed by the authentication device 4, the control device 5 includes the installation position of the authentication device 4 and the current position of each person grasped based on the images captured by the imaging devices 3 a to 3 c. To determine which person has been authenticated.

  Then, the control device 5 stores in the predetermined storage means whether or not authentication is completed for each person being tracked, and controls the floor 2 based on this information and the current position of each person. Thus, the appearance of each person's feet is changed so that it can be determined whether or not the authentication has been completed. For example, the control device 5 controls the floor surface 2 so that only the feet of unauthenticated persons shine.

  Here, when a part of the floor surface 2 emits light and the light emitting part changes with the movement of the person, each person moving within the monitoring range is determined based on the images taken by the imaging devices 3a to 3c. It can be difficult to track. Therefore, the control device 5 changes the entire floor surface 2 to the initial state only during the period of capturing the person tracking video. The initial state here means a state that has little influence on the detection and tracking of a person, for example, a state in which all light emission is stopped.

  FIG. 3 is a block diagram showing a configuration of the control device 5 shown in FIG. As shown in FIG. 3, the control device 5 includes an authentication information database 51, a tracking target database 52, an authentication control unit 53, a person tracking unit 54, an association unit 55, a floor setting unit 56, and timing. A control unit 57, a floor surface control unit 58, and a photographing control unit 59 are included.

  The authentication information database 51 is a database in which information for authenticating a person to be authenticated is registered in advance. An example of the authentication information database 51 is shown in FIG. As shown in FIG. 4, the authentication information database 51 includes items such as a user ID, a name, and authentication information. The user ID is an identification number for identifying the person to be authenticated. The name is the name of the person to be authenticated. The authentication information is information used for authentication of a person to be authenticated, and is biometric information such as a password or fingerprint information, for example.

  The tracking target database 52 is a database in which information related to each person tracked based on videos captured by the imaging devices 3a to 3c is registered. An example of the tracking target database 52 is shown in FIG. As illustrated in FIG. 5, the tracking target database 52 includes items such as a tracking target ID, a current position, a movement locus, a user ID, and an authentication state.

  The tracking target ID is an identification number for identifying the person being tracked. The current position is the coordinates of the position where the person identified by the tracking target ID is currently located. The movement trajectory is history information in which the coordinates of the person identified by the tracking target ID are recorded every predetermined unit time. The user ID is an identification number in the authentication information database 51 of the person identified by the tracking target ID. The authentication state is a flag indicating whether or not authentication of the person identified by the tracking target ID has been completed. Here, when the authentication of the person identified by the tracking target ID is completed, “Y” is set as the authentication state, and when the authentication is not completed, “N” is set as the authentication state. Shall be.

  The authentication control unit 53 compares the authentication information input in the authentication device 4 with the information registered in the authentication information database 51, and executes an authentication process. Note that the authentication processing in the authentication control unit 53 may be performed by the authentication apparatus 4 with the user ID input, and may be performed by a one-to-one authentication method using the user ID as a search key, or the user ID input is received. Alternatively, the 1-to-N authentication method may be used.

  The person tracking unit 54 detects and tracks a person in the monitoring range based on the images taken by the imaging devices 3a to 3c, and records the current position and movement trajectory of each person in the tracking target database 52. Specifically, when detecting a new person, the person tracking unit 54 issues a new tracking target ID, adds a line for the person to the tracking target database 52, and sets the person in the item of the current position. Stores the coordinates of the detected position. At this stage, it is unknown who the newly recognized person is and authentication has not been completed. Therefore, the user ID item is blank, and “N” is set in the authentication status item.

  Further, the person tracking unit 54 periodically updates the value of the item of the current position of each detected person to the latest position and shifts the value of each item of the movement trajectory. Then, the person tracking unit 54 stores the value set in the item of the current position in the latest item of the movement locus.

The tracking of a person can be realized by a method using a back projection method and a Kalman filter, as described in Reference Document 1 below, for example.
References 1: Mitsuharu Hayasaka, Hideyoshi Tominaga, Kazuzo Komiya: “Recognition and Tracking of Multiple Moving Objects Using Backprojection Method and Kalman Filter”, PRMU 2001-132, pp. 133-138, Nov, 2001.

  The association unit 55 associates the person stored in the authentication information database 51 with the person stored in the tracking target database 52. Specifically, when the authentication process in the authentication control unit 53 is successful, the associating unit 55 displays the user ID of the authenticated person and the identification number of the authentication device 4 to which the authentication information is input as the authentication control unit. 53. Then, the associating unit 55 acquires the position of the authentication device 4 to which the authentication information is input based on the identification number of the authentication device 4. Note that the correspondence between the identification number and the position of the authentication device 4 may be registered in the association unit 55 or may be registered outside the association unit 55.

  Subsequently, the associating unit 55 collates the position of the authentication device 4 to which the authentication information is input with the current position of each person stored in the tracking target database 52, and the position closest to the position of the authentication device 4. The person who is in is identified as an authenticated person, and the tracking target ID of the person is acquired. Then, the associating unit 55 sets the user ID acquired from the authentication control unit 53 in the item of the user ID in the row of the tracking target database 52 corresponding to the acquired tracking target ID, and sets the user ID acquired in the same row as the authentication status item. Set “Y”. In this way, by identifying the position of the authentication device 4 and the position of each person being tracked at the time of authentication processing, it is possible to identify which person among the persons being tracked is the authenticated person Can do.

  The floor setting unit 56 determines the appearance of each part of the floor 2. Specifically, the floor setting unit 56 refers to the tracking target database 52, sets the portion corresponding to the current position of the authenticated person to the first mode, and corresponds to the current position of the unauthenticated person. Is determined to be the second mode. Here, the first mode and the second mode only have to be distinguished from each other, and one mode may be a mode in the initial state of the floor 2.

  Further, the first aspect may be different depending on the authority of the authenticated person. For example, by changing the appearance of the portion corresponding to the current position of the Premier member and the normal member, it becomes easy to prevent the normal member from illegally using a service that only the Premier member can use. To do this, for example, authority may be registered in the authentication information database 51, and the associating unit 55 may set the authority in the tracking target database 52 together with the user ID.

  Further, the second mode may be different depending on the time after the start of tracking. For example, as the unauthenticated time is longer, such as gradually changing the color from yellow to red, it is possible to prompt the implementation or exit of authentication. In order to do this, for example, the time after the start of tracking may be set in the tracking target database 52.

  The timing control unit 57 adjusts the timing at which the imaging devices 3a to 3c capture the video and the timing at which the appearance of the floor surface 2 is changed so as not to affect the detection and tracking of the person by the person tracking unit 54. An example of timing adjustment by the timing control unit 57 is shown in FIG. As shown in FIG. 6, the timing control unit 57 periodically sets a period in which the appearance of the floor surface 2 is in an initial state and the mode of the position of the person being tracked does not change, and the imaging device is in that period. The timing is adjusted so that 3a to 3c capture images. The timing control unit 57 shortens the period during which the appearance of the floor surface 2 is returned to the initial state, thereby preventing the person from noticing that the appearance of the floor surface 2 is in the initial state.

  The floor surface control unit 58 changes the appearance of the floor surface 2 in accordance with the mode of each unit determined by the floor surface setting unit 56 and the timing determined by the timing control unit 57. The imaging control unit 59 causes the imaging devices 3a to 3c to capture images according to the timing determined by the timing control unit 57.

  Next, the operation of the control device 5 shown in FIG. 3 will be described. FIG. 7 is a flowchart showing the operation of the control device 5. As shown in FIG. 7, the person tracking unit 54 detects and tracks a person within the monitoring range based on the images taken by the imaging devices 3 a to 3 c, and stores the result in the tracking target database 52. (Step S101).

  When someone is authenticated by the authentication control unit 53 (Yes at Step S102), the association unit 55 associates the authenticated person with the person being tracked (Step S103). If no one has been authenticated by the authentication control unit 53 (No at Step S102), the association by the association unit 55 is not performed.

  Subsequently, the floor setting unit 56 reads information from the tracking target database 52 and determines how to change the appearance of each part of the floor 2 (step S104). Further, the timing control unit 57 determines the timing for changing the appearance of each part of the floor 2 and the timing for the imaging devices 3a to 3c to shoot video (step S105).

  Then, the floor surface control unit 58 changes the appearance of the floor surface 2 in accordance with the mode of each unit determined by the floor surface setting unit 56 and the timing determined by the timing control unit 57 (step S106). Thereafter, the floor surface control unit 58 returns the appearance of the floor surface 2 to the initial state in accordance with the timing determined by the timing control unit 57 (step S107), and the imaging control unit 59 passes the imaging devices 3a to 3c in the meantime. A video is taken (step S108).

  After the photographing is completed, the floor surface control unit 58 again changes the appearance of the floor surface 2 according to the mode of each unit determined by the floor surface setting unit 56 and the timing determined by the timing control unit 57 (step S109). . Thereafter, steps S101 to S109 are repeatedly executed.

  As described above, in this embodiment, since the control is performed so that the appearance of the floor surface at the position where the authenticated person is located and the position where the unauthenticated person is located are different, the authenticated person and the unauthenticated person are controlled. A person on the spot can easily distinguish a person. In the present embodiment, since the appearance of the floor surface is returned to the initial state at the timing when the image for detecting and tracking the person is taken, the detection and tracking of the person is performed according to the change in the appearance of the floor surface. It is possible to prevent a decrease in accuracy.

  In the first embodiment, control is performed so that the appearance of the floor surface at the position where the authenticated person is located and the position where the unauthenticated person is located are different, but it is difficult to distinguish the appearance of the floor surface due to the influence of external light or the like. There is a case. In the second embodiment, an example for dealing with such a case will be described.

  First, the configuration of the display system according to the present embodiment will be described. The display system according to the present embodiment has the same configuration as that of the display system according to the first embodiment, except that the control device 5 is replaced with the control device 6. Therefore, here, the configuration of the control device 6 will be described. In the following description, the same parts as those already described are denoted by the same reference numerals as those already described, and description thereof will be omitted.

  FIG. 8 is a block diagram showing the configuration of the control device 6. As shown in FIG. 8, the control device 6 includes an authentication information database 51, a tracking target database 52, a floor surface setting database 61, an authentication control unit 53, a person tracking unit 54, an associating unit 55, a floor, A surface setting unit 62, a timing control unit 63, a floor surface setting correction unit 64, a floor surface control unit 65, and a photographing control unit 59 are included.

  The floor surface setting database 61 is a database in which the appearance of each part of the floor surface 2 determined by the floor surface setting unit 62 is registered for each person being tracked. An example of the floor setting database 61 is shown in FIG. As shown in FIG. 9, the floor setting database 61 includes items such as a tracking target ID, a display position, a display color, a pattern, and a display size.

  The tracking target ID is an identification number for identifying the person being tracked, and corresponds to the tracking target ID in the tracking target database 52. The display position is the coordinates of the part whose aspect is changed as the part corresponding to the current position of the person corresponding to the tracking target ID. The display color, the pattern, and the display size are information indicating details of the mode of the portion corresponding to the display position, and represent the color, the presence / absence of the pattern, and the size of the area for displaying the color and the pattern, respectively.

  The floor setting unit 62 determines the appearance of each part of the floor 2 in the same manner as the floor setting unit 56 and sets the result in the floor setting database 61 for each person being tracked. The floor setting unit 62 registers at least the mode of the part corresponding to the current position of the newly detected person in the floor setting database 61, and sets the mode of the part corresponding to the current position of the newly authenticated person. Change it to indicate that it has been authenticated.

  The timing control unit 63 adjusts the timing at which the imaging devices 3 a to 3 c capture a video and the timing at which the appearance of the floor surface 2 is changed. An example of timing adjustment by the timing control unit 63 is shown in FIG. As illustrated in FIG. 10, the timing control unit 63 periodically sets a period in which the appearance of the floor surface 2 is in an initial state and the mode of the position where the person being tracked is not changing, and the imaging device is in that period. The timing is adjusted so that 3a to 3c capture images. Furthermore, the timing control unit 63 causes the imaging devices 3a to 3c to capture images even when the appearance of the floor surface 2 is changing.

  Videos taken by the imaging devices 3a to 3c during the period when the appearance of the floor surface 2 is in the initial state are used for detection and tracking of a person by the person tracking unit 54. The video during this period is suitable for detecting and tracking a person because the appearance of the floor 2 does not differ from video to video. The timing control unit 63 shortens the period during which the appearance of the floor surface 2 is returned to the initial state, thereby preventing the person from noticing that the appearance of the floor surface 2 is in the initial state.

  On the other hand, the images taken by the imaging devices 3a to 3c during the period when the appearance of the floor surface 2 is changed are used by the floor surface setting correction unit 64. The floor setting correction unit 64 evaluates the ease of visually recognizing the appearance of each part corresponding to the current position of the person being tracked based on the video taken during this period. And if there exists a part which is hard to visually recognize, the floor surface setting correction part 64 will update the line of the floor surface setting database 61 corresponding to the part, and will change the aspect of the part so that it may be easy to visually recognize.

  The ease of visually recognizing the appearance of a portion corresponding to the current position of a person being tracked is, for example, generated based on the setting contents of the floor setting database 61 and a video to be shot at that portion. Can be evaluated by comparing the actual captured video with the video. As for the video to be shot at the portion corresponding to the current position of the person being tracked, a video prepared in advance may be acquired from a predetermined storage means.

  Moreover, the visibility improvement of the part which is hard to visually recognize is implement | achieved by enlarging display size or changing a display color based on a predetermined rule, for example. The rule here is, for example, that the display color of the part corresponding to the current position of an unauthenticated person is “red” → “blue” → “green” → “red” → “blue” → “green”. It is to circulate like that.

  The floor surface control unit 65 changes the appearance of the floor surface 2 according to the setting contents of the floor surface setting database 61 and the timing determined by the timing control unit 63.

  Next, the operation of the control device 6 shown in FIG. 8 will be described. FIG. 11 is a flowchart showing the operation of the control device 6. As shown in FIG. 11, the person tracking unit 54 detects and tracks a person in the monitoring range based on the images taken by the imaging devices 3 a to 3 c, and stores the result in the tracking target database 52. (Step S201).

  When someone is authenticated by the authentication control unit 53 (Yes at Step S202), the association unit 55 associates the authenticated person with the person being tracked (Step S203). If no one is authenticated by the authentication control unit 53 (No at Step S202), the association unit 55 does not perform association.

  Subsequently, the floor setting unit 62 reads out information from the tracking target database 52 to determine how to change the appearance of each part of the floor 2 and sets the result in the floor setting database 61 (step) S204). In addition, the timing control unit 63 determines the timing for changing the appearance of each part of the floor surface 2 and the timing for the imaging devices 3a to 3c to capture images (step S205).

  Then, the floor surface control unit 65 changes the appearance of the floor surface 2 according to the setting content of the floor surface setting database 61 and the timing determined by the timing control unit 63 (step S206). Thereafter, the floor surface control unit 65 returns the appearance of the floor surface 2 to the initial state according to the timing determined by the timing control unit 63 (step S207), and the imaging control unit 59 passes the imaging devices 3a to 3c in the meantime. A video is taken (step S208).

  After the photographing is finished, the floor surface control unit 65 again changes the appearance of the floor surface 2 according to the setting contents of the floor surface setting database 61 and the timing determined by the timing control unit 63 (step S209). Then, the imaging control unit 59 causes the imaging devices 3a to 3c to capture images (step S210). Based on the video, the floor setting correction unit 64 corrects the setting contents of the floor setting database 61 (step S211), and the floor control unit 65 follows the setting contents of the corrected floor surface setting database 61. The appearance of the floor surface 2 is changed (step S212). Thereafter, steps S201 to S212 are repeatedly executed.

  As described above, in the present embodiment, the floor setting correction unit 64 corrects the setting of the appearance of the floor 2 based on the video taken when the appearance of the floor 2 is changing. Therefore, when it is difficult to distinguish the appearance of the floor surface due to the influence of external light, the state can be improved.

  In addition, the structure of each apparatus demonstrated in each said Example can be variously changed in the range which does not deviate from a summary. For example, the functions equivalent to those of the control device 5 and the control device 6 can be realized by mounting the functions of the control device 5 and the control device 6 as software and executing them by a computer. Hereinafter, an example of a computer that executes the display control program 1071 in which the function of the control device 5 is installed as software will be described.

  FIG. 12 is a functional block diagram showing a computer 1000 that executes the display control program 1071. The computer 1000 includes a CPU (Central Processing Unit) 1010 that executes various arithmetic processes, an input device 1020 that receives input of data from a user, a monitor 1030 that displays various information, and a medium that reads a program from a recording medium. A bus 1080 includes a reading device 1040, a network interface device 1050 that exchanges data with the authentication device 4 via a network, a RAM (Random Access Memory) 1060 that temporarily stores various information, and a hard disk device 1070. Connected and configured.

  The hard disk device 1070 stores a display control program 1071 having the same function as each processing unit of the control device 5 shown in FIG. 3 and various data stored in each database of the control device 5 shown in FIG. Corresponding display control data 1072 is stored. Note that the display control data 1072 can be appropriately distributed and stored in another computer connected via a network.

  Then, the CPU 1010 reads the display control program 1071 from the hard disk device 1070 and develops it in the RAM 1060, whereby the display control program 1071 functions as the display control process 1061. Then, the display control process 1061 expands information read from the display control data 1072 and the like in an area allocated to itself on the RAM 1060, and executes various data processing based on the expanded data.

  Note that the display control program 1071 is not necessarily stored in the hard disk device 1070, and the computer 1000 may read and execute the program stored in a storage medium such as a CD-ROM. . The computer 1000 stores the program in another computer (or server) connected to the computer 1000 via a public line, the Internet, a LAN (Local Area Network), a WAN (Wide Area Network), or the like. You may make it read and run a program from these.

  The following supplementary notes are further disclosed with respect to the embodiments including the above examples.

(Appendix 1) Person tracking means for detecting the current position of each person located in a predetermined area and tracking each person;
Storage means for storing attribute information about each person;
Floor surface control means for changing the appearance of a predetermined range of the floor surface corresponding to the current position of each person acquired by the person tracking means according to the attribute information of each person stored in the storage means; A display system characterized by comprising.

(Additional remark 2) It further has the authentication control means which controls authentication of each person,
The display system according to claim 1, wherein the storage unit stores, as attribute information about each person, whether or not authentication has been performed by the authentication control unit.

(Additional remark 3) The said floor surface control means respond | corresponds to the time which passed since the appearance of the predetermined range of the floor surface corresponding to the present position of the person who is not authenticated by the said authentication control means was detected by the said person tracking means. The display system according to appendix 2, wherein the display system is changed.

(Additional remark 4) The floor surface control means gives an appearance of a predetermined range of the floor surface corresponding to the current position of the person authenticated by the authentication control means to the authority of the person acquired at the time of authentication by the authentication control means. 4. The display system according to appendix 2 or 3, wherein the display system is changed accordingly.

(Additional remark 5) The installation position of the apparatus which receives the input of the information for authentication by the said authentication control means, and the present position of each person which the said person tracking means acquired when the authentication by the said authentication control means was performed 5. The apparatus according to any one of appendices 2 to 4, further comprising: an association unit that associates the person authenticated by the authentication control unit with the person tracked by the person tracking unit. Display system.

(Appendix 6) The person tracking means detects and tracks the current position of each person based on the video taken by the imaging means,
The display system according to any one of appendices 1 to 5, wherein the floor surface control unit returns the appearance of the floor surface to an initial state while an image is captured by the imaging unit.

(Supplementary Note 7) Imaging means for photographing video in a predetermined area;
Floor surface setting correction means for evaluating the visibility of the appearance of a predetermined range of the floor surface changed by the floor surface control means based on the video imaged by the imaging means, and correcting the appearance of the predetermined range; The display system according to any one of appendices 1 to 5, further comprising:

(Appendix 8) The person tracking means detects and tracks the current position of each person based on the video imaged by the imaging means,
The display system according to appendix 7, wherein the floor surface control unit returns the appearance of the floor surface to an initial state while an image for the person tracking unit is being captured by the imaging unit.

(Supplementary note 9) A person tracking step of detecting the current position of each person located in a predetermined area and tracking each person;
A floor surface control step of changing the appearance of a predetermined range of the floor surface corresponding to the current position of each person acquired in the person tracking step according to the attribute information of each person stored in advance in the storage means; A display control method characterized by including.

(Additional remark 10) It further includes the authentication control process which controls authentication of each person,
The display control method according to claim 9, wherein the storage unit stores, as attribute information about each person, whether or not the authentication is performed in the authentication control step.

(Additional remark 11) The said floor surface control process is based on the time which passed since the external appearance of the predetermined range of the floor surface corresponding to the present position of the person who is not authenticated in the said authentication control process was detected in the said person tracking process. The display control method according to appendix 10, wherein the display control method is changed.

(Supplementary note 12) In the floor surface control step, the appearance of a predetermined range of the floor surface corresponding to the current position of the person authenticated in the authentication control step is assigned to the authority of the person acquired at the time of authentication by the authentication control step. 12. The display control method according to appendix 10 or 11, wherein the display control method is changed accordingly.

(Additional remark 13) The installation position of the apparatus which receives the input of the information for authentication by the said authentication control process, and the present position of each person which the said person tracking process acquired when the authentication by the said authentication control process was performed The method according to any one of appendices 10 to 12, further comprising an association step of associating the person authenticated in the authentication control step with the person being tracked by the person tracking step. Display control method.

(Supplementary Note 14) The person tracking step detects and tracks the current position of each person based on the video taken in the imaging step.
The display control method according to any one of appendices 9 to 13, wherein the floor surface control step returns the appearance of the floor surface to an initial state while an image is being captured in the imaging step. .

(Supplementary Note 15) An imaging process for capturing video in a predetermined area;
A floor surface setting correction step of evaluating the visibility of the appearance of the predetermined range of the floor surface changed in the floor surface control step based on the video imaged in the imaging step, and correcting the appearance of the predetermined range; The display control method according to any one of appendices 9 to 13, further comprising:

(Supplementary Note 16) The person tracking step detects and tracks the current position of each person based on the video taken in the imaging step,
The display control method according to claim 15, wherein the floor surface control step returns the appearance of the floor surface to an initial state while an image for the person tracking step is captured in the imaging step. .

1 is a diagram illustrating an overview of a display system according to Embodiment 1. FIG. 1 is a diagram illustrating an overall configuration of a display system according to Embodiment 1. FIG. 1 is a block diagram illustrating a configuration of a control device according to a first embodiment. It is a figure which shows an example of an authentication information database. It is a figure which shows an example of a tracking object database. It is a figure which shows an example of adjustment of the timing by a timing control part. 3 is a flowchart illustrating an operation of the control device according to the first embodiment. FIG. 6 is a block diagram illustrating a configuration of a control device according to a second embodiment. It is a figure which shows an example of a floor setting database. It is a figure which shows an example of adjustment of the timing by a timing control part. 7 is a flowchart illustrating an operation of a control device according to a second embodiment. It is a functional block diagram which shows the computer which performs a display control program.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1a-1i Person 2 Floor surface 2a, 2b Area | region 3a-3c Image pick-up device 4 Authentication apparatus 5, 6 Control apparatus 51 Authentication information database 52 Tracking object database 53 Authentication control part 54 Person tracking part 55 Correlation part 56, 62 Floor setting Unit 57, 63 Timing control unit 58, 65 Floor surface control unit 59 Imaging control unit 61 Floor surface setting database 64 Floor surface setting correction unit 1000 Computer 1010 CPU
1020 Input device 1030 Monitor 1040 Medium reader 1050 Network interface device 1060 RAM
1061 Display control process 1070 Hard disk device 1071 Display control program 1072 Display control data 1080 Bus

Claims (10)

A person tracking means for detecting the current position of each person located within a predetermined area and tracking each person;
Storage means for storing attribute information about each person;
Floor surface control means for changing the appearance of a predetermined range of the floor surface corresponding to the current position of each person acquired by the person tracking means according to the attribute information of each person stored in the storage means; A display system characterized by comprising. An authentication control means for controlling authentication of each person;
The display system according to claim 1, wherein the storage unit stores, as attribute information about each person, whether or not authentication has been performed by the authentication control unit.   The floor surface control means changes the appearance of a predetermined range of the floor surface corresponding to the current position of the person who has not been authenticated by the authentication control means according to the time elapsed since the person tracking means detected. The display system according to claim 2.   The floor surface control means changes the appearance of a predetermined range of the floor surface corresponding to the current position of the person authenticated by the authentication control means according to the authority of the person acquired at the time of authentication by the authentication control means. The display system according to claim 2, wherein the display system is a display system.   Based on the installation position of the device that accepts input of information for authentication by the authentication control means, and the current position of each person acquired by the person tracking means when authentication by the authentication control means is performed, 5. The display system according to claim 2, further comprising an association unit that associates the person authenticated by the authentication control unit with the person tracked by the person tracking unit. The person tracking means detects and tracks the current position of each person based on the video imaged by the imaging means,
The display system according to claim 1, wherein the floor surface control unit returns the appearance of the floor surface to an initial state while an image is captured by the imaging unit. . Imaging means for capturing video in a predetermined area;
Floor surface setting correction means for evaluating the visibility of the appearance of a predetermined range of the floor surface changed by the floor surface control means based on the video imaged by the imaging means, and correcting the appearance of the predetermined range; The display system according to claim 1, further comprising: The person tracking means detects and tracks the current position of each person based on the video imaged by the imaging means,
The display system according to claim 7, wherein the floor surface control unit returns the appearance of the floor surface to an initial state while an image for the person tracking unit is captured by the imaging unit. . A person tracking step of detecting the current position of each person located within a predetermined area and tracking each person;
A floor surface control step of changing the appearance of a predetermined range of the floor surface corresponding to the current position of each person acquired in the person tracking step according to the attribute information of each person stored in advance in the storage means; A display control method characterized by including. An authentication control step for controlling authentication of each person,
The display control method according to claim 9, wherein the storage unit stores, as attribute information about each person, whether or not authentication has been performed in the authentication control step.

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