Information processing device, information processing method, and program

Abstract

It will enable the display of a variety of AR content. [Solution] An information processing device 1 has a reading unit 12 that reads link information indicating a resource for acquiring marker information, a marker information acquisition unit 171 that accesses the resource indicated by the link information and acquires the marker information, a recognition unit 172 that recognizes a marker specified by the marker information from within an image captured by an imaging unit 13, and a display control unit 173 that, when the recognition unit 172 recognizes a marker, causes content corresponding to the marker to be superimposed on the image captured by the imaging unit 13 and displayed on the display unit 14.

Description

[Technical field]

[0001] The present invention relates to an information processing device, an information processing method, and a program. [Background technology]

[0002] There is known a technique for detecting a marker included in a captured image and displaying an AR (Augumented Reality) content corresponding to the marker (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2015-41126 A Summary of the Invention [Problem to be solved by the invention]

[0004] In the prior art, the marker to be recognized and the content displayed when the marker is recognized are associated in advance, and the AR content displayed based on one marker is limited. This causes a problem that the user cannot enjoy a variety of AR contents. In addition, in the prior art, the user's operation to recognize the marker is complicated, and the user cannot easily enjoy the contents.

[0005] Therefore, the present invention has been made in consideration of these points, and has an object to make it possible to display a variety of AR contents. [Means for solving the problem]

[0006] An information processing device of a first aspect of the present invention includes a reading unit that reads link information recorded in an NFC (Near Field Communication) tag, the link information indicating a resource for acquiring marker information for identifying a marker; a marker information acquisition unit that accesses the resource indicated by the link information and acquires the marker information; a display unit that displays an image captured by an imaging unit; a recognition unit that recognizes the marker identified by the marker information from within the image captured by the imaging unit; and a display control unit that, when the recognition unit recognizes the marker, causes content corresponding to the marker to be superimposed on the image captured by the imaging unit and displayed on the display unit.

[0007] The reading unit may read link information indicating a resource for acquiring information for recognizing a marker attached to an object to which the NFC tag is attached.

[0008] The marker information acquisition unit may acquire the marker information for identifying a plurality of different markers, the recognition unit may recognize each of the plurality of different markers, and the display control unit may display content corresponding to each of the plurality of markers.

[0009] When the display control unit has displayed content and is unable to recognize the marker, the recognition unit may further recognize an object to which the marker is attached, and the display control unit may display content corresponding to the marker based on the position of the object.

[0010] The information processing device may further include an environmental information acquisition unit that acquires environmental information indicating a surrounding environment of the information processing device, and the display control unit may display the content corresponding to the marker in a display manner based on the surrounding environment indicated by the environmental information.

[0011] The information processing device may further include an authentication information acquisition unit that acquires authentication information for authenticating a user who uses the information processing device, and an authentication processing unit that transmits the authentication information of the user who uses the information processing device to a management device that manages the display of content, and inquires of the management device as to whether or not the content corresponding to the marker can be displayed, and the display control unit may display the content corresponding to the marker if it is possible to display the content.

[0012] The marker information associates information for identifying the marker with content to be displayed when the marker indicated by the marker information is recognized, and the display control unit may display the content associated with the marker in the marker information when the recognition unit recognizes the marker.

[0013] The information processing device may further include an environmental information acquisition unit that acquires environmental information indicating the environment surrounding the information processing device, wherein the marker information associates information for identifying the marker, the surrounding environment, and a display mode of content corresponding to the marker and displayed in accordance with the surrounding environment, and when the recognition unit recognizes the marker, the display control unit may display the content corresponding to the marker in the display mode associated with the marker in the marker information.

[0014] The marker information associates information for identifying the marker with content link information indicating a resource for obtaining content to be displayed when the marker is recognized, and when the recognition unit recognizes the marker, the display control unit may display the content corresponding to the marker by accessing the resource indicated by the content link information associated with the marker in the marker information.

[0015] An information processing method of a second aspect of the present invention includes the steps of: reading link information recorded in an NFC tag, the link information indicating a resource for obtaining marker information for identifying a marker; accessing the resource indicated by the link information and obtaining the marker information; recognizing the marker identified by the marker information from an image captured by an imaging unit; and, when the marker is recognized, displaying content corresponding to the marker on a display unit by superimposing it on the image captured by the imaging unit.

[0016] In a third aspect of the program of the present invention, a computer is caused to execute the steps of reading link information recorded in an NFC tag, the link information indicating a resource for obtaining marker information for identifying a marker; accessing the resource indicated by the link information and obtaining the marker information; recognizing the marker identified by the marker information from an image captured by an imaging unit; and, when the marker is recognized, displaying content corresponding to the marker on a display unit by superimposing it on the image captured by the imaging unit. Effect of the Invention

[0017] According to the present invention, it is possible to display a variety of AR contents. [Brief description of the drawings]

[0018] [Figure 1] 1 is a diagram for explaining an overview of an information processing system S according to an embodiment. [Diagram 2] 1 is a block diagram showing a configuration of an information processing device 1. FIG. [Diagram 3] 13 is a diagram showing an example of a screen displayed by a display control unit 173. FIG. [Figure 4] 13 is a diagram showing an example of a screen displayed by a display control unit 173. FIG. [Diagram 5] 3 is a flowchart showing a process flow in the information processing device 1. [Figure 6] 13 is a diagram showing an example of marker information acquired by a marker information acquisition unit 171. FIG. [Figure 7] 13 is a diagram showing an example of marker information acquired by a marker information acquisition unit 171. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0019] [Outline of Information Processing System S] 1 is a diagram for explaining an overview of an information processing system S according to an embodiment. The information processing system S is a system for displaying AR content. The information processing system S includes an information processing device 1, a server 2, and an object 3. The object 3 includes an NFC tag 31 and a marker 32.

[0020] The information processing device 1 is an information terminal used by a user. It is preferable that the information processing device 1 is portable. The information processing device 1 is a smartphone, a tablet, or a personal computer. The information processing device 1 captures an image, recognizes a marker 32 that appears in the captured image, and displays AR content corresponding to the recognized marker 32.

[0021] The server 2 is a server that manages content to be displayed on the information processing device 1. In response to a request from the information processing device 1, the server 2 transmits information for identifying a target marker to be recognized by the information processing device 1, and functions as a management device that transmits AR content to be displayed by the information processing device 1.

[0022] The object 3 is an item to which a marker 32 is attached for displaying AR content on the information processing device 1. It is preferable that the object 3 is a portable item so that a user can have an experience of superimposing AR content on a background photographed at any location and displaying it on the information processing device 1. One example of the object 3 is a ring, but is not limited to this.

[0023] The object 3 is affixed with an NFC tag 31. The NFC tag 31 stores link information. The link information indicates a method for accessing a resource for acquiring marker information for identifying the marker 32. An example of the resource information is a universal resource identifier (URI) of a storage resource that stores the marker information. The marker information is information for recognizing the marker 32 included in image data captured by the information processing device 1. An example of the marker information is information indicating the shape of the marker 32.

[0024] The resource information may include information for identifying the NFC tag 31. The resource information may also include a URI that links to a different resource for each object 3. This configuration allows the information processing device 1 to obtain marker information corresponding to the object 3.

[0025] Furthermore, the marker information may be associated with content to be displayed when the marker 32 is recognized, or may be associated with a URI for acquiring the content to be displayed when the marker 32 is recognized. By configuring the marker information in this manner, a variety of content can be displayed on the information processing device 1 without increasing the number of types of markers 32.

[0026] The processing in the information processing system S will be described. The information processing device 1 reads the NFC tag 31 attached to the object 3 and acquires link information ((1) in FIG. 1). The information processing device 1 accesses a resource in the server 2 indicated by the link information and acquires marker information ((2) in FIG. 1). The information processing device 1 stores the acquired marker information.

[0027] The information processing device 1 captures an image of the object 3 and generates image data. The information processing device 1 analyzes the captured image data and recognizes a marker 32 included in the image data based on the marker information ((3) in FIG. 1). The information processing device 1 acquires content corresponding to the recognized marker 32 from the server 2 and displays the acquired content on the display unit by superimposing it on the image captured by the information processing device 1 ((4) in FIG. 1).

[0028] The information processing system S is configured so that the information processing device 1 acquires marker information, recognizes the marker 32 indicated by the acquired marker information, and displays content corresponding to the recognized marker 32. This makes it possible to flexibly associate markers with content, and enables a variety of AR content to be displayed.

[0029] In the above description, an example has been described in which the NFC tag 31 storing link information is attached to the object 3, but a QR code (registered trademark) in which link information is embedded may be attached to the object 3 instead of the NFC tag 31. In this case, the information processing device 1 reads the QR code attached to the object 3 and acquires the link information embedded in the QR code.

[0030] [Configuration of information processing device 1] 2 is a block diagram showing the configuration of the information processing device 1. The information processing device 1 has a communication unit 11, a reading unit 12, an imaging unit 13, a display unit 14, an input unit 15, a storage unit 16, and a control unit 17. The information processing device 1 may further have a GPS receiving module and various sensors. The control unit 17 has a marker information acquisition unit 171, a recognition unit 172, a display control unit 173, an authentication information acquisition unit 174, an authentication processing unit 175, and an environmental information acquisition unit 176.

[0031] The communication unit 11 is a communication interface for transmitting and receiving data to and from other devices via a network. The reading unit 12 is an NFC reader. The reading unit 12 reads the link information recorded in the NFC tag 31, and outputs it to the marker information acquisition unit 171.

[0032] The imaging unit 13 is a camera. The imaging unit 13 outputs image data generated by capturing an image to the recognition unit 172 and the display control unit 173. The display unit 14 is a display. The display unit 14 displays an image based on a signal generated by the display control unit 173. The display unit 14 displays the image captured by the imaging unit 13.

[0033] The input unit 15 is an input device for receiving an input of an operation signal from a user, and is, for example, a touch panel display, a keyboard, or a mouse.

[0034] The storage unit 16 is a storage medium including a read only memory (ROM), a random access memory (RAM), a solid state drive (SSD), a hard disk drive, etc. The storage unit 16 stores a program to be executed by the control unit 17 in advance.

[0035] The control unit 17 is a processor such as a CPU (Central Processing Unit). The control unit 17 executes a program stored in the storage unit 16 to function as a marker information acquisition unit 171, a recognition unit 172, a display control unit 173, an authentication information acquisition unit 174, an authentication processing unit 175, and an environmental information acquisition unit 176.

[0036] The marker information acquisition unit 171 accesses the resource indicated by the link information and acquires the marker information. The marker information includes marker identification information for identifying the marker 32. The marker identification information indicates the shape of the marker 32 to be recognized in the image. The marker identification information may include the color of the marker 32. The marker identification information may be associated with information for identifying the marker 32.

[0037] The recognition unit 172 recognizes the marker 32 indicated by the marker identification information from the image captured by the imaging unit 13. The recognition unit 172 compares the image data input from the imaging unit 13 with the shape of the marker 32 indicated by the marker identification information, and identifies the marker 32 included in the image data. The recognition unit 172 recognizes the marker 32 included in the image data by a known image recognition technique.

[0038] When the recognition unit 172 recognizes the marker 32, the display control unit 173 causes the display unit 14 to display the content corresponding to the marker 32 by superimposing it on the image captured by the imaging unit 13. FIG. 3 is a diagram showing an example of a screen that the display control unit 173 causes the display unit of the information processing device to display. As an example, the content is an AR object. The display control unit 173 causes the content C to be displayed at a predetermined position in the screen. The predetermined position may be, for example, the position of the recognized marker 32. In addition, the display position of the content relative to the marker 32 may be determined in advance, and the display control unit 173 may determine the display position of the content C based on the position of the recognized marker 32. The display control unit 173 transmits information for identifying the recognized marker 32 to the server 2, acquires the content C corresponding to the marker 32 recognized by the recognition unit 172 from the server 2, and displays the acquired content on the display unit 14.

[0039] The information processing device 1 is configured to acquire marker information, recognize the marker 32 indicated by the acquired marker information, and display content corresponding to the recognized marker 32, thereby making it possible to display a variety of AR contents.

[0040] The information processing device 1 may be configured so that the display control unit 173 acquires the content corresponding to the marker 32 from the server 2 at the timing when the marker 32 is recognized.

[0041] In this case, the marker information associates information for identifying the marker 32 with content link information. The content link information indicates a method for accessing a resource in the server 2 for acquiring content to be displayed corresponding to the recognized marker 32. One example of the content link information is a URI for acquiring the content.

[0042] When the recognition unit 172 recognizes a marker 32, the display control unit 173 accesses a resource indicated by content link information associated in the marker information with the recognized marker 32, thereby displaying the content corresponding to the marker 32. When the recognition unit 172 recognizes a marker 32, the display control unit 173 accesses a resource indicated by content link information corresponding to the recognized marker 32, thereby acquiring the content corresponding to the recognized marker 32. The display control unit 173 displays the acquired content on the display unit 14 by superimposing it at a predetermined position on the screen.

[0043] By configuring the information processing device 1 to acquire and display content when the marker 32 is recognized, an administrator who manages the content can easily maintain the content, and the user can display the latest content.

[0044] The information processing device 1 may be configured to recognize a plurality of markers 32 and display a plurality of pieces of content corresponding to the respective recognized markers 32.

[0045] The reading unit 12 reads a plurality of different NFC tags 31 and acquires a plurality of pieces of link information. Each of the plurality of different NFC tags 31 may be attached to the same object 3, or each of the plurality of different objects 3. The marker information acquiring unit 141 accesses a resource indicated by each of the plurality of pieces of link information and acquires marker information for identifying the plurality of different markers 32. The marker information acquiring unit 141 stores the acquired marker information in the storage unit 16.

[0046] The recognition unit 172 recognizes each of the multiple different markers 32 included in the image data captured by the imaging unit 13. The display control unit 173 displays content corresponding to each of the multiple markers 32. FIG. 4 is a diagram showing an example of a screen displayed by the display control unit 173 in this case. As an example, the display control unit 173 refers to the marker information stored in the storage unit 16 and acquires content corresponding to each of the multiple markers (32A and 32B) recognized by the recognition unit 172. The display control unit 173 displays the content (3A and 3B) corresponding to the multiple different markers (32A and 32B) on the display unit 14 by superimposing it on the image captured by the imaging unit 13.

[0047] By configuring the information processing device 1 in this way, the user can enjoy combining and displaying a plurality of contents. As an example, the user can enjoy collecting objects 3 for displaying each of the plurality of contents in order to enjoy the plurality of contents.

[0048] In the link destination indicated by the link information stored in the NFC, multiple pieces of marker information may be stored. In this case, the marker information acquisition unit 131 stores each of the multiple pieces of acquired marker information in the storage unit 16.

[0049] The recognition unit 172 recognizes the marker 32 included in the image data captured by the imaging unit 13. The display control unit 173 displays the content that corresponds to the recognized marker in the marker information.

[0050] Incidentally, after the marker 32 is recognized in the image captured by the imaging unit 13 and the content is displayed, the position at which the content is to be displayed is determined based on the position at which the marker 32 was recognized. At this time, a problem arises as to how to determine the position at which the content is to be displayed when the marker 32 is no longer captured in the image. In such a case, the information processing device 1 may be configured to determine the position at which the content is to be displayed based on the position of the object 3 to which the marker 32 is attached. In this case, the storage unit 16 stores in advance information indicating the shape of the object 3 and information indicating the relative position at which the content is to be displayed with respect to the recognized object when the shape of the object is recognized. The shape of the object is, for example, information indicating a plurality of feature points of the object.

[0051] When the display control unit 173 has caused the content to be displayed and the recognition unit 172 is unable to recognize the marker 32, the recognition unit 172 further recognizes the object 3 to which the marker 32 has been attached. When the recognition unit 172 is unable to recognize the marker 32 contained in the image, the recognition unit 172 recognizes the object 3 contained in the image data captured by the imaging unit 13, and specifies the position and orientation of the object 3.

[0052] The display control unit 173 displays the content corresponding to the marker 32 based on the position of the object 3. The display control unit 173 determines the position at which the content is to be displayed based on the position and orientation of the object identified by the recognition unit 172 and the relative position at which the content stored in the storage unit 16 is to be displayed.

[0053] By configuring the information processing device 1 to display content based on the recognized object 3 even when it is no longer able to recognize the marker 32, it becomes possible to determine the position of the content even when it is no longer able to recognize the marker 32, thereby reducing the sense of discomfort felt by the user when viewing the displayed content.

[0054] When a user carries the information processing device 1, the information processing device 1 is configured to display content according to an external environment such as the temperature or weather of the information processing device 1, so that the user can enjoy the content more. In this case, the server 2 may store a content display mode according to the weather, or may store a temperature threshold and a content display mode when the temperature exceeds the threshold or falls below the threshold.

[0055] The environmental information acquisition unit 176 acquires environmental information indicating the environment around the information processing device 1. The environmental information indicates, for example, the weather, temperature, humidity, or the like around the location of the information processing device 1. As an example, the information processing device 1 transmits location information indicating the location of the information processing device 1 to an external server (not shown) and acquires environmental information corresponding to the location of the information processing device 1.

[0056] The environmental information may be a date or a time. In this case, the server 2 stores a display mode of the content corresponding to the date or time indicated by the environmental information.

[0057] The display control unit 173 displays the content corresponding to the marker 32 in a display mode based on the surrounding environment indicated by the environmental information. When acquiring the content corresponding to the marker 32 recognized by the recognition unit 172, the display control unit 173 further transmits the environmental information to the server 2 and acquires the display mode of the content corresponding to the environmental information. The display control unit 173 displays the content on the display unit 14 in the acquired display mode. An example of the display mode of the content is the background or brightness of the content. Furthermore, when the content to be displayed is a character, the display mode may be the costume, pose, or movement of the character.

[0058] The information processing device 1 may be configured to display the content in a special manner in the case of a specific position. That is, the environmental information may be the position information itself. In this case, the server 2 stores the position indicated by the position information and the display manner of the content in association with each other. The environmental information acquisition unit 176 acquires the position information from a GPS receiving module mounted on the information processing device 1. When acquiring the content corresponding to the marker 32 recognized by the recognition unit 172, the display control unit 173 transmits the environmental information, which is the position information, to the server 2, and the server 2 transmits the display manner of the content selected based on the position indicated by the environmental information to the information processing device 1, and the display control unit 173 displays the content in the acquired display manner on the display unit 14.

[0059] By configuring the information processing device 1 to transmit environmental information to the server 2 and acquire and display content corresponding to the environmental information, it becomes possible to display content corresponding to the external environment of the information processing device 1. As a result, it becomes possible to motivate the user to move around while carrying the object 3.

[0060] [Processing flow in information processing device 1] 5 is a flowchart showing the flow of processing in the information processing device 1. The flowchart shown in FIG.

[0061] The reading unit 12 reads the link information recorded in the NFC tag 31 (S01). The marker information acquisition unit 171 accesses the resource indicated by the link information and acquires the marker information (S02).

[0062] The imaging unit 13 captures an image of the object 3 and generates image data (S03). The recognition unit 172 recognizes the marker 32 included in the image data generated by the imaging unit 13 (S04). The display control unit 173 accesses a resource indicated by the content link information corresponding to the recognized marker 32 in the marker information, and acquires the content (S05). The display control unit 173 displays the acquired content superimposed on the image captured by the imaging unit 13 (S06). The information processing device 1 ends the process.

[0063] [Effects of information processing device 1] The information processing device 1 is configured to acquire marker information, recognize the marker 32 indicated by the acquired marker information, and display content corresponding to the recognized marker 32, thereby making it possible to display a variety of AR contents.

[0064] <Modification> In the above description, an example has been described in which the information processing device 1 is configured to download the content to be displayed each time the marker 32 is recognized. However, the information processing device 1 may be configured to download the content when the marker information is acquired.

[0065] FIG. 6 is a diagram showing an example of marker information acquired by the marker information acquisition unit 171. In the marker information, an "ID", "marker identification information", and "content" are associated with each other. The "ID" is an ID for identifying the correspondence between the marker and the content. That is, the "content" indicates the content to be displayed when the marker 32 indicated by the "marker identification information" is recognized. The server 2 stores the marker information shown in FIG. 6, and the marker information acquisition unit 171 acquires the marker information from the server 2 based on the link information acquired by the reading unit 12, and stores the acquired marker information in the storage unit 16. Note that the administrator of the content can add, change, or delete the correspondence between the marker and the content in the marker information stored by the server 2. The administrator of the content can add, change, or delete the marker information, thereby enabling the marker and the content to be flexibly associated with each other, and the user can enjoy a variety of AR content.

[0066] When the recognition unit 172 recognizes a marker 32, the display control unit 173 displays the content corresponding to the marker in a display mode associated with the marker 32 in the marker information. The display control unit 173 refers to the marker information stored in the memory unit 16, and displays the content corresponding to the marker 32 recognized by the recognition unit 172 on the display unit 14 by superimposing it on the image data captured by the imaging unit 13.

[0067] When content is downloaded in advance, the display mode of the content corresponding to the environmental information is associated in the marker information. FIG. 7 is a diagram showing an example of the data structure of the marker information in this case. In the environmental information shown in FIG. 7, "marker identification information", "environment", and "content display mode" are associated. "Environment" corresponds to the environmental information acquired by the environmental information acquisition unit 176. The marker information shown in FIG. 7 shows an example in which the display mode of the content is controlled based on the weather. "Content display mode" indicates the display mode of the content displayed in response to the external environment indicated by "environment".

[0068] When the recognition unit 172 recognizes the marker 32, the display control unit 173 displays content in a display mode corresponding to the surrounding environment indicated by the environmental information, from among the content associated with the marker 32 in the marker information.

[0069] The information processing device 1 is configured to acquire the content to be displayed in association with the marker identification information, thereby providing an effect of reducing the load on the network when the content is displayed.

[0070] The information processing device 1 may be configured to authenticate a user, and if the authenticated user is able to display the content corresponding to the marker 32, to display the content.

[0071] The authentication information acquisition unit 174 acquires authentication information for authenticating a user who uses the information processing device. An example of the authentication information is a user's ID (Identification) and password. As an example, when the recognition unit 172 recognizes the marker 32, the display control unit 173 causes the display unit 14 to display a screen prompting the user to input authentication information. The authentication information acquisition unit 174 acquires the authentication information input by the user.

[0072] The authentication processing unit 175 transmits authentication information of the user who uses the information processing device 1 to the server 2 that manages the display of content, and inquires of the server 2 as to whether or not the content corresponding to the marker 32 can be displayed. The authentication processing unit 175 transmits information for identifying the recognized marker 32 and the authentication information acquired by the authentication information acquisition unit 174 to the server 2, and inquires as to whether or not the content corresponding to the recognized marker 32 can be displayed.

[0073] The display control unit 173 displays the content corresponding to the recognized marker when it is possible to display the content corresponding to the marker 32. When the display control unit 173 receives a response from the server 2 indicating that the content can be displayed, it displays the content.

[0074] By configuring the information processing device 1 to display content based on whether the content can be displayed to a user, it becomes possible to display the content only to specific users. As a result, it becomes possible to encourage interaction between users, such as by showing each other content.

[0075] Furthermore, this invention will make it possible to contribute to Goal 9 of the United Nations' Sustainable Development Goals (SDGs), which is to "build resilient infrastructure, promote industry, innovation and infrastructure."

[0076] Although the present invention has been described above using the embodiments, the technical scope of the present invention is not limited to the scope described in the above embodiments, and various modifications and changes are possible within the scope of the gist of the present invention. For example, all or part of the device can be configured by distributing or integrating functionally or physically in any unit. In addition, new embodiments resulting from any combination of multiple embodiments are also included in the embodiments of the present invention. The effect of the new embodiment resulting from the combination combines the effect of the original embodiment. [Explanation of symbols]

[0077] 1. Information processing device 2 Server 11 Communications Department 12 Reading unit 13 Imaging unit 14 Display section 15 Input section 16 Memory section 17 Control Unit 171 Marker information acquisition unit 172 Recognition part 173 Display control section 174 Authentication Information Acquisition Department 175 Authentication processing unit 176 Environmental Information Acquisition Department

Claims

1. a reading unit that reads link information recorded in an NFC (Near Field Communication) tag, the link information indicating a resource for acquiring marker information associated with marker identification information for identifying a marker and content to be displayed when the marker is recognized; a marker information acquisition unit that accesses a resource indicated by the link information and acquires the marker information; a display unit that displays an image captured by the imaging unit; a recognition unit that recognizes the marker identified by the marker information from within an image captured by an imaging unit; a display control unit that, when the recognition unit recognizes the marker, causes a content associated with the marker in the marker information to be superimposed on an image captured by the imaging unit and displayed on a display unit; An information processing device having the above configuration.

2. The reading unit reads link information indicating a resource for acquiring marker information associated with marker identification information for recognizing a marker attached to an object to which the NFC tag is attached; The information processing device according to claim 1 .

3. the marker information acquisition unit acquires the marker information in which a plurality of pieces of marker identification information for identifying a plurality of different markers and a plurality of pieces of content to be displayed when each of the plurality of different markers is recognized are associated with each other; The recognition unit recognizes each of the plurality of different markers, The display control unit displays content corresponding to each of the plurality of different markers. The information processing device according to claim 1 .

4. the recognition unit, when the display control unit has caused the content to be displayed and the marker cannot be recognized, further recognizes an object to which the marker is attached; The display control unit displays content corresponding to the marker based on the position of the object. The information processing device according to claim 1 .

5. An environmental information acquisition unit that acquires environmental information indicating a surrounding environment of the information processing device, The display control unit displays the content corresponding to the marker in a display mode based on the surrounding environment indicated by the environmental information. The information processing device according to claim 1 .

6. an authentication information acquisition unit that acquires authentication information for authenticating a user who uses the information processing device; an authentication processing unit that transmits authentication information of a user who uses the information processing device to a management device that manages display of content, and inquires of the management device as to whether or not the content corresponding to the marker can be displayed; and the display control unit causes the content corresponding to the marker to be displayed when the content can be displayed; The information processing device according to claim 1 .

7. An environmental information acquisition unit that acquires environmental information indicating a surrounding environment of the information processing device, In the marker information, the marker identification information, a surrounding environment, and a display mode of the content corresponding to the marker and displayed in accordance with the surrounding environment are associated with each other, when the recognition unit recognizes the marker, the display control unit displays the content corresponding to the marker in a display mode associated with the marker in the marker information and a surrounding environment indicated by the environmental information; The information processing device according to claim 1 .

8. The computer executes reading link information recorded in an NFC tag, the link information indicating a resource for acquiring marker information associated with marker identification information for identifying a marker and content to be displayed when the marker is recognized; accessing the resource indicated by the link information and acquiring the marker information; Recognizing the marker identified by the marker information from an image captured by an imaging unit; when the marker is recognized, displaying content associated with the marker in the marker information on a display unit in such a manner that the content is superimposed on an image captured by the imaging unit; An information processing method comprising the steps of:

9. On the computer, reading link information recorded in an NFC tag, the link information indicating a resource for acquiring marker information associated with marker identification information for identifying a marker and content to be displayed when the marker is recognized; accessing the resource indicated by the link information and acquiring the marker information; Recognizing the marker identified by the marker information from an image captured by an imaging unit; when the marker is recognized, displaying content associated with the marker in the marker information on a display unit in such a manner that the content is superimposed on an image captured by the imaging unit; A program that executes the following.

Images