JP7447507B2 - Information processing device and program - Google Patents

Description

The present invention relates to an information processing device and a program.

A spatial light modulator that inputs a laser beam and modulates the laser beam based on the reproduced wavefront information of the hologram, an expansion optical system that magnifies the modulated light modulated by the spatial light modulator and forms an image, and the modulated light forms an image. deflection optics that deflects the modulated light by changing the deflection direction over time so that a viewing zone is formed in an annular entire circumferential area centered on the optical axis of the magnifying optical system. A hologram display device including a system is known (for example, see Patent Document 1).

Obtain an image of the display surface of the aerial image, estimate the area where the visibility of the aerial image is reduced from the captured image, and then determine the display of the aerial image to include the estimated area. A visibility control device is also known (for example, see Patent Document 2).

Japanese Patent Application Publication No. 2016-156892 JP2019-128724A

It is conceivable that multiple observers observe an image that can be observed from the surroundings. In this case, if a configuration is adopted in which the information on the observation target in the image that can be observed from the surroundings is displayed in a state where it can be seen by other observers, the viewing of the information on the observation target in the image that can be observed from the surroundings will be restricted. may be seen by other observers.

An object of the present invention is to provide information on an observation target in an image that can be observed from the surroundings, compared to a case where information on an observation target in an image that can be observed from the surroundings is displayed in a state where it can be seen by other observers. The purpose of this is to reduce the possibility that other restricted viewers will see the information.

The invention according to claim 1 includes a processor, and the processor receives an operation for displaying a specific image by a specific viewer, and in response to acceptance of the operation, displays the specific image observable from the surroundings. The image is controlled to be displayed in the air with processing for restricting the viewing of the observation target information in the particular image by other observers, and the processing for restricting the viewing includes: A process of not forming information on the observation target on the specific image, and forming information on the viewing authority of the information on the observation target by the other observer on the specific image so as to face the specific observer. An information processing apparatus is characterized in that it includes a process of :
The invention according to claim 2 is characterized in that the process for restricting viewing further includes a process of forming a wording regarding restriction on viewing of the information of the observation target on the specific image. This is the information processing device described.
The invention according to claim 3 is characterized in that the information regarding the viewing authority of the other observer to view the information on the observation target is information on an observer who is not restricted from viewing the information on the observation target. An information processing device according to claim 1 .
The invention according to claim 4 is the information processing apparatus according to claim 3, wherein the observer whose viewing is not restricted is an observer selected from pre-registered observers. .
The invention according to claim 5 is characterized in that the information regarding the viewing authority of the other observer to view the information on the observation target is information on an observer who is restricted from viewing the information on the observation target. An information processing device according to claim 1 .
The invention according to claim 6 provides a computer with a function of accepting an operation for displaying a specific image by a specific viewer, and in response to acceptance of the operation, displaying the specific image that can be observed from the surroundings. Processing for restricting the viewing by realizing a function of controlling the information on the observation target in the particular image to be displayed in the air with processing for restricting viewing by other observers. includes a process of not forming information on the observation target on the specific image, and a process of not forming information on the observation target on the specific image, and displaying information regarding the viewing authority of the other observer on the information on the observation target on the specific image so as to face the specific observer. This is a program that includes processing to form a file .

According to the invention of claim 1, the information on the object to be observed in the image that can be observed from the surroundings is not seen by other observers whose viewing is restricted, and the information on the object to be observed in the image that is observable from the surroundings is not visible. The viewer's viewing authority can be notified .
According to the second aspect of the invention , it is possible to notify the user of restrictions on viewing information about the observation target in an image that can be observed from the surroundings.
According to the third aspect of the invention , it is possible to notify an observer who is not restricted from viewing information about an observation target in an image that can be observed from the surroundings.
According to the invention of claim 4 , compared to the case where a configuration is adopted in which the information of all observers who are not restricted from viewing the information of the observation target in the image that can be observed from the surroundings is adopted, the information of the observation target is displayed. Information can be easily viewed by observers who are not restricted from viewing the information.
According to the invention of claim 5 , it is possible to notify an observer who is restricted from viewing information about an observation target in an image that can be observed from the surroundings.
According to the invention of claim 6 , the information on the object to be observed in the image that can be observed from the surroundings is not seen by other observers whose viewing is restricted, and the information on the object to be observed in the image that is observable from the surroundings is not visible. The viewer's viewing authority can be notified .

1 is a diagram showing an example of a hardware configuration of an information display device according to an embodiment of the present invention. 1 is a diagram showing an example of a display space in which an information display device according to an embodiment of the present invention displays a stereoscopic image. (a) and (b) are diagrams showing an example of an operation when selecting a document to be displayed in a display space. FIG. 6 is a diagram illustrating a display example of a first aspect of a document image in a shared display space. (a) and (b) are diagrams showing a display example of a second aspect of a document image in a shared display space. FIG. 7 is a diagram showing a display example of a third aspect of a document image in a shared display space. (a) and (b) are diagrams showing another example of operation when selecting a document to be displayed within the display space. 1 is a block diagram showing an example of a functional configuration of an information display device according to an embodiment of the present invention. 2 is a flowchart showing a first operation example when displaying a document image in the air by the information display device according to the embodiment of the present invention. 12 is a flowchart showing a second operation example when displaying a document image in the air by the information display device according to the embodiment of the present invention. 12 is a flowchart showing a third operation example when displaying a document image in the air by the information display device according to the embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[Hardware configuration of information display device]
FIG. 1 is a diagram showing an example of the hardware configuration of an information display device 10 in this embodiment. The information display device 10 is an example of an information processing device, and as shown in the figure, includes a processor 11 as a calculation means, a main memory 12 and an HDD (Hard Disk Drive) 13 as storage means. Here, the processor 11 executes various software such as an OS (Operating System) and applications to realize various functions described below. Further, the main memory 12 is a storage area that stores various software and data used for executing the software, and the HDD 13 is a storage area that stores input data for various software, output data from the various software, and the like. Furthermore, the information display device 10 includes a communication I/F 14 for communicating with the outside, a display I/F 15 for outputting information to a display device, and an input I/F 16 for inputting information from an input device. Equipped with.

Here, the display device connected to the display I/F 15 will be explained. As illustrated, the display device includes a light source 151 and a spatial light modulator (SLM) 152.

The light source 151 emits reference light L1, which is coherent light, to the SLM 152. Specifically, the light source 151 includes, for example, a collimating lens and a laser light emitting section, and converts the laser light emitted from the laser light emitting section into parallel light using the collimating lens, and emits the parallel light as the reference light L1.

The SLM 152 modulates the input reference light L1 based on the reproduced wavefront information of the hologram, and outputs the modulated reference light L1 as output light L2. Then, using this output light L2, a stereoscopic image S is displayed at a position in the air that is a predetermined distance away from the surface of the SLM 152. Specifically, the SLM 152 is, for example, a spatial light modulator (MEMS-SLM) using MEMS (Micro Electro Mechanical Systems) or a spatial light modulator (LCOS-SLM) using LCOS (Liquid Crystal On Silicon). , and displays interference fringes based on the reproduced wavefront information of the hologram. Here, the reproduction wavefront information is information indicating what kind of interference fringes should be used to modulate the reference light L1 in order to display the required stereoscopic image S. In other words, the reproduced wavefront information is information indicating a pattern of interference fringes for displaying a desired stereoscopic image S.

Also, the input device connected to the input I/F 16 will be explained. As illustrated, the input device is a camera 161. The camera 161 has an optical system (lens, etc.) for forming an image, and captures an image. Here, since the movements of the participants are particularly imaged, it is preferable to use a video camera as the camera 161.

Although not shown, the communication I/F 14 may perform wireless communication with an acceleration sensor provided in a finger-mounted wearable device or an operation input device such as a mouse or a keyboard.

[Overview of this embodiment]
In the present embodiment, the information display device 10 accepts an operation by a specific viewer to display a specific image, and in response to the acceptance of the operation, displays a specific image that can be observed from the surroundings. Control is performed so that the information on the observation target is displayed in the air while being processed to restrict viewing by other observers.

In the following, a three-dimensional image imitating a paper document (hereinafter referred to as a "document image") will be described as an example of a specific image. Further, as a plurality of observers including a specific observer and other observers, a plurality of participants in a conference held while referring to a document image displayed in the air will be explained as an example.

FIG. 2 is a diagram showing an example of a display space 30 in which the information display device 10 displays a stereoscopic image. As illustrated, the display space 30 includes a shared display space 31 and personal display spaces 32a and 32b.

The shared display space 31 is a display area shared by multiple participants. In this shared display space 31, a stereoscopic image shared by a plurality of participants is displayed. In the figure, a three-dimensional image 40 representing a three-dimensional model is displayed, but as will be described later, a flat three-dimensional image may also be displayed.

The personal display space 32a is a display area for participant A. A stereoscopic image managed by participant A is displayed in this personal display space 32a. In the figure, a desktop image 51a is displayed on the participant B side in the personal display space 32a, and a document image 52a is displayed on the participant A side of the desktop image 51a.

The personal display space 32b is a display area for participant B. A stereoscopic image managed by participant B is displayed in this personal display space 32b. In the figure, a desktop image 51b is displayed on the participant A side in the personal display space 32b, and a document image 52b is displayed on the participant B side of the desktop image 51b. However, the document image 52b is not shown because it is hidden behind the desktop image 51b.

In the figure, the personal display spaces 32a, 32b and the desktop images 51a, 51b are shown, and the document images 52a, 52b are displayed. However, if there is no need to distinguish between these, the personal display spaces 32 and the desktop images 51a, 51b are shown. 51 and may also be referred to as a document image 52. Also, here, two individual display spaces 32 are shown because it is assumed that two participants A and B are holding a meeting facing each other, but when three or more participants are holding a meeting, Three or more personal display spaces 32 may be provided.

Further, although the desktop image 51 is displayed in the personal display space 32 here, the desktop image 51 is not necessarily necessary in this embodiment, so the desktop image 51 will not be mentioned below.

Furthermore, in this specification, when describing a certain document image 52, a participant who manages the document image 52 is referred to as a "specific participant," and participants other than this participant are referred to as "other participants." ”.

Furthermore, in this specification, in addition to the personal display space 32, the desktop image 51, and the document image 52, images managed by participant A and elements in the images are indicated with the subscript "a". On the other hand, when referring to a general concept without specifying the administrator, no subscript shall be added.

Next, a specific example of operation in the display space 30 will be explained. Here, we also assume a situation where participants A and B are facing each other in a meeting.

FIGS. 3A and 3B are diagrams showing an example of an operation when selecting a document to be displayed within the display space 30.

First, when sharing and displaying the document image 52a within the display space 30, the participant A performs a gesture G1 of touching the folder image 53a displayed in the air within the display space 30, as shown in FIG. 3(a). conduct.

An enlarged view of the folder image 53a is shown in FIG. 3(b). For example, participant A performs a gesture G1 of touching the document "Document3.txt" in the folder image 53a.

Then, the information display device 10 detects the position of participant A's fingertip using the camera 161, identifies the document corresponding to the position of the fingertip, and displays it as a highlight. In the figure, highlighted display is indicated by diagonal hatching. After that, if the fingertip is in the position of the document for a predetermined period of time (for example, 5 seconds) or more, it is determined that Participant A is instructing the display of the document, and the document is shared as the document image 52a. It is displayed in the air within the display space 31.

Although here, the document to be displayed as the document image 52a is selected from the folder images 53a displayed in the air within the personal display space 32a, the present invention is not limited to this. A document to be displayed as the document image 52a may be selected from a smartphone or a personal computer held by participant A.

In this way, the document image 52a is displayed in the air within the shared display space 31. However, some documents that are the source of the document image 52a have access rights set and viewing thereof is restricted. For example, the document "Document3.txt" in FIG. 3(b) has the access right "Members Only" set so that only a specific person can view it. If such a document is carelessly displayed in the shared display space 31 with its contents known, there is a risk that other participants will see the contents of the document and that confidentiality will not be maintained.

Therefore, in the present embodiment, the information display device 10 performs processing for restricting viewing of the contents of the document before displaying the document image 52a.

The process for restricting viewing of the content of the document includes, first, a process based on the premise that the content of the document is not formed in the document image 52a. Such processing includes a process of forming information regarding the viewing authority of the content of the document in the document image 52a, and a process of forming information regarding the viewing authority of the content of the document by other participants in the document image 52a. be. In the following, the document image 52a in which the former process is performed is referred to as a first aspect, and the document image 52a in which the latter process is performed is referred to as a second aspect.

Furthermore, the processing for restricting viewing of the content of a document includes processing based on the premise that the content of the document is formed on the document image 52a. As such processing, there is processing that makes it difficult to visually recognize the contents of the document from the side opposite to participant A's side. In the following, the document image 52a in which this process is performed will be referred to as a third aspect.

FIG. 4 is a diagram showing a display example of the first aspect of the document image 52a in the shared display space 31.

In this case, as shown in the figure, the information display device 10 does not form the content of the document in the document image 52a, but forms wording 521a regarding the access restriction of the document as an example of information regarding the viewing restriction of the content of the document. Specifically, the wording 521a is "Members Only".

Note that if viewing restrictions are not applied to the document that is the source of the document image 52a, the information display device 10 displays the document image 52a in a state where the content of the document can be viewed.

FIGS. 5A and 5B are diagrams showing a display example of the second mode of the document image 52a in the shared display space 31.

In this case, as shown in FIG. 5A, the information display device 10 does not form the content of the document in the document image 52a, but instead displays text regarding access restrictions to the document as an example of information regarding restrictions on viewing the contents of the document. 521a. Specifically, the wording 521a is "Members Only".

In addition, as shown in FIG. 5A, the information display device 10 includes, in addition to the text 521a, the document image 52a, the access rights to this document as an example of information regarding the viewing rights of the contents of the document by other participants. form information for participants with Here, a facial photograph 522a of the participant is formed as the participant's information. For example, in FIG. 5A, it is assumed that participant B has access rights to the document that is the source of the document image 52a, and a face photo 522a of participant B is formed in the document image 52a. However, the participant's face photo 522a is just an example, and the participant's affiliation, name, etc. may also be provided as the participant's information.

In this state, Participant A confirms that Participant B's information is formed in the document image 52a, and if Participant A determines that it is okay to allow Participant B to view the contents of the document, the Participant A can view the document. Instruct to lift restrictions. For example, it is preferable to instruct to cancel the viewing restriction by touching the document image 52a or instructing with a device such as a mouse or a smartphone.

Then, as shown in FIG. 5B, the information display device 10 displays a document image 52a' in which the text 521a and the face photograph 522a are removed and the content of the document is formed. Note that when Participant A confirms the contents of the document by himself/herself, the contents of the document are displayed so that the front of the document image 52a' faces Participant A, and the contents of the document are turned over to Participant B. It is visible in the condition. After Participant A confirms the content of the document, by performing a predetermined operation, the document image may be rotated and displayed so that the front of document image 52a' faces Participant B, or the front of document image 52a' may be It is also possible to duplicate the document image directed to participant B and display it.

Note that the information display device 10 may form information on some participants who have access rights to this document. For example, the participants who are around the display space 30 may be registered in advance, and the pre-registered participants who have access rights to this document may be selected as some of the participants. This is because if the information of all participants who have access rights is formed in the document image 52a, there will be too much information and it will be difficult to view. In this case, some of the participants are an example of observers selected from pre-registered observers.

Further, the information display device 10 may form information on a participant who does not have access rights to this document in the document image 52a, as an example of information regarding the authority to view the content of the document by other participants. . In this case as well, information of some participants who do not have access rights may be formed to prevent too much information from being formed in the document image 52a. In addition, even if some participants who do not have access rights are able to confirm the content of the document, if the contents of the document can be viewed, the document can be accessed by predetermined operations. It may also be possible to display the contents of the page. At this time, the information of participants who do not have access rights at that time but may be allowed to view the information may be recorded as attribute information of the electronic file of this document, or may be added to the access rights to the electronic file of this document. By doing so, you can also record that you have given permission for viewing by that participant.

FIG. 6 is a diagram showing a display example of the third aspect of the document image 52a in the shared display space 31.

In this case, as shown in the figure, the information display device 10 forms the content of the document in the document image 52a, but as an example of processing to make the content of the document difficult to see from the side opposite to the participant A side, Processing is performed to place a background image 523a on the back side of the document image 52a to restrict viewing by participant B.

Specifically, a difficult-to-see image that makes it difficult for participant B to see the text information included in the document image 52a may be placed inside the background image 523a. The obfuscated image may be, for example, a symbol, a pattern, a still image, or a moving image. As a symbol, it is preferable to use a symbol such as "*", "*", "#", etc., which when placed on one side makes it difficult to see from the other side. An example of the pattern is a camouflage pattern. Examples of still images include electronic documents, web pages, computer graphics, and other images that tend to attract the attention of others. Videos include random pattern videos (videos with bright spots flashing randomly like a sandstorm image on TV), videos in which a specific pattern moves in a predetermined direction or in a random direction, landscapes, and TV programs. , movies, CG, and other video moving images can be considered.

Alternatively, the brightness of the background image 523a may be made higher than the brightness of the document image 52a so that the text information included in the document image 52a is difficult for participant B to see. Specifically, the brightness of image elements such as points, lines, and planes constituting the background image 523a or the brightness per unit area of the background image 523a are compared to the brightness of image elements such as points, lines, and planes of the document image 52a, or the brightness per unit area of the background image 523a. The brightness may be higher than the brightness per unit area of the document image 52a.

FIGS. 7A and 7B are diagrams showing another example of operation when selecting a document to be displayed within the display space 30. This operation example is an example in which a virtual file folder or file cabinet is provided in the display space 30, a document is extracted from there, and the document is displayed in the air as a document image 52a. Documents are stored in advance in a specific file folder or file cabinet.

First, the information display device 10 displays an image imitating a file folder or a file cabinet in the air within the display space 30. Here, as shown in FIG. 7(a), a folder image 54a imitating a file folder is displayed in the air. Further, it is assumed that there are a plurality of file folders, and a plurality of folder images 54a are displayed. In this state, as shown in FIG. 7A, it is assumed that participant A performs a gesture G2 of bringing the fingertip closer to the folder image 54a.

Then, the information display device 10 detects the position of the fingertip using the camera 161, and changes the folder image 54a displayed at that position to an open state, as shown in FIG. 7(b). Then, the document image 52a corresponding to the document stored in the folder image 54a is extracted from the folder image 54a and displayed.

At this time, the information display device 10 displays the document image 52a with the display of the contents of the document shown in any one of FIGS. 4 to 6 restricted according to the access rights set for the document. Note that FIG. 7B shows, as an example, a first aspect of the document image 52a shown in FIG. 4, in which display of the contents of the document is restricted. As a result, when selecting a document within the display space 30, it is possible to prevent the contents of the document from being displayed due to mistakenly taking out a document whose viewing is restricted.

[Functional configuration of information display device]
FIG. 8 is a block diagram showing an example of the functional configuration of the information display device 10 in this embodiment. As illustrated, the information display device 10 in this embodiment includes an operation detection section 21, an access right storage section 22, a document shape generation section 23, and a display control section 24.

When the operation information of the participant is input from the input I/F 16 or the communication I/F 14, the operation detection unit 21 detects the operation of the participant from this operation information. For example, if an image captured by the camera 161 of a participant's movements is input from the input I/F 16, the trajectory of the participant's fingertips is extracted from the image, and the participant's gesture is determined based on the extracted trajectory. identify. In addition, participants wear a finger-mounted wearable device equipped with an acceleration sensor, and detection data (direction, speed) of the acceleration sensor transmitted from this wearable device via Bluetooth (registered trademark) is transmitted from the communication I/F 14. If so, the detected data is compared with known gesture patterns and the participant's gesture is identified based on the comparison result. Then, if the identified gesture is a gesture of a specific participant such as touching a document in the folder image 53 or touching the folder image 54, the operation detection unit 21 detects the document displayed in the shared display space 31. A specific participant's operation for selecting an image 52 is detected. If this identified gesture is a gesture of a specific participant who touches the document image 52 in which the display of the document content is restricted, the specific participation is performed to release the restriction on the display of the document content in the document image 52. Detect user operations.

Alternatively, when operation information transmitted by Bluetooth (registered trademark) is input from the communication I/F 14 by displaying and operating a mouse cursor or menu in the air using a keyboard, mouse, etc., the operation detection unit 21 detects this information. It is also possible to detect the participant's operation from the operation information. In this case as well, the operation detection unit 21 detects an operation by a specific participant to select the document image 52 to be displayed in the shared display space 31 and a specific operation to cancel the restriction on displaying the content of the document in the document image 52. Detect participant actions.

In this embodiment, an operation detection unit 21 is provided as an example of means for accepting an operation by a specific viewer to display a specific image.

The access right storage unit 22 stores access rights for each document. For example, as shown in the folder image 53 in FIG. 3(b), correspondence between document names and access rights may be stored.

The document shape generation unit 23 generates a three-dimensional shape for displaying the document image 52 in the air when the operation detection unit 21 detects an operation by a specific participant to select the document image 52 to be displayed in the shared display space 31. data indicating the document shape (hereinafter referred to as "document shape"). At this time, the document shape generation unit 23 performs processing on the document shape to restrict viewing of the content of the document by other participants. In this embodiment, in response to the reception of an operation, a means for controlling a specific image to be displayed in the air with processing for restricting viewing of information on the observation target by other observers is provided. As an example, a document shape generation section 23 is provided.

Specifically, the document shape generation unit 23 performs processing on the document shape to form information regarding the viewing authority for the content of the document stored in the access right storage unit 22 without forming the content of the document. . For example, the document shape generation unit 23 performs processing on the document shape to form words representing attributes related to document access restrictions without forming the contents of the document. In this case, the process of forming text expressing the attributes related to document access restrictions without forming the content of the document is the process of not forming the information of the observation target on a specific image, and the process of forming the information of the observation target on a specific image. This is an example of a process for forming information regarding viewing authority.

Further, the document shape generation unit 23 performs processing for forming information regarding the viewing authority of other participants for viewing the content of the document stored in the access right storage unit 22 without forming the content of the document for the document shape. You may do so. For example, the document shape generation unit 23 may perform processing on the document shape to create information on participants who have access authority to the document, without creating the content of the document. In this case, the process of forming information on participants who have access authority to the document without forming the content of the document is the process of forming information on the object of observation on a specific image, and the process of forming information on participants who have access rights to the document This is an example of a process of forming information regarding viewing authority for information on an observation target, and a process of forming information on an observer who is not restricted from viewing information on an observation target in a specific image. Alternatively, the document shape generation unit 23 may perform processing on the document shape to create information about a participant who does not have access authority to the document, without creating the content of the document. In this case, the process of forming information for participants who do not have access rights to the document without forming the content of the document is the process of not forming information of the observation target on a specific image, and the process of forming information on participants who do not have access rights to the document This is an example of a process of forming information regarding the viewing authority of the information of the observation target and a process of forming information of an observer who is restricted from viewing the information of the observation target in a specific image.

Further, the document shape generation unit 23 may perform a process of forming document contents on the document shape to make it difficult for other participants to view the document contents. For example, the document shape generation unit 23 performs a process of forming the content of the document in the document shape and arranging a background image 523 on the back side of the document shape to restrict viewing by other participants. In this case, the process of forming the content of the document in the document shape and placing the background image 523 on the back side of the document shape to restrict viewing by other participants forms information to be observed in a specific image, Processing that makes it difficult to visually recognize the information on the observation target from the side opposite to the side of a specific observer, and other processing that makes it difficult to see the information on the observation target by forming the information on the observation target in a specific image. This is an example of a process in which an image is placed on the side opposite to the side of a specific viewer.

The display control section 24 converts the document shape generated by the document shape generation section 23 into reproduction wavefront information. Then, by outputting this reproduced wavefront information to the SLM 152, the document image 52 is controlled to be displayed in the air.

[Operation of information display device]
FIG. 9 is a flowchart showing a first example of the operation of the information display device 10 when displaying the document image 52 in the air. This first operation example is an operation example when displaying the first aspect of the document image 52 shown in FIG. 4. Here, it is assumed that the folder image 53 shown in FIG. 3(b) or the folder image 54 shown in FIG. 7(a) is displayed in the display space 30 prior to the operation.

As shown in the figure, in the information display device 10, the operation detection unit 21 first determines whether a gesture of a specific participant selecting a document using the folder image 53 or the folder image 54 is detected (step 201 ).

As a result, unless the operation detection unit 21 determines that a gesture of a specific participant selecting a document using the folder image 53 or the folder image 54 has been detected, the operation detection unit 21 continues to perform the process of step 201.

On the other hand, if the operation detection unit 21 determines that a gesture of a specific participant selecting a document using the folder image 53 or the folder image 54 is detected, the document shape generation unit 23 refers to the access right storage unit 22. Then, it is determined whether access rights are set for this document (step 202).

If it is determined that access authority is set for this document, the document shape generation unit 23 generates a document shape in which display of the contents of the document is restricted (step 203). Then, text regarding access restrictions is added to this document shape (step 204).

Further, if it is not determined that access authority is set for this document, the document shape generation unit 23 generates a document shape in which display of the contents of the document is not restricted (step 205).

As a result, the display control unit 24 controls the display of the document image 52 based on the document shape generated in step 203 and with text added in step 204, or the document shape generated in step 205. (Step 206). Specifically, the document shape generated in step 203 and with text added in step 204, or the document shape generated in step 205, is converted into reproduced wavefront information. Then, by outputting this reproduced wavefront information to the SLM 152, it is controlled to display the document image 52.

FIG. 10 is a flowchart showing a second operation example of the information display device 10 when displaying the document image 52 in the air. This second operation example is an operation example when displaying the second aspect of the document image 52 shown in FIGS. 5(a) and 5(b). Also here, it is assumed that the folder image 53 shown in FIG. 3(b) or the folder image 54 shown in FIG. 7(a) is displayed in the display space 30 prior to the operation.

As shown in the figure, in the information display device 10, the operation detection unit 21 first determines whether a gesture of a specific participant selecting a document using the folder image 53 or the folder image 54 is detected (step 221 ).

As a result, if the operation detection unit 21 does not determine that a gesture of a specific participant selecting a document using the folder image 53 or the folder image 54 has been detected, the operation detection unit 21 continues to perform the process of step 221.

On the other hand, if the operation detection unit 21 determines that a gesture of a specific participant selecting a document using the folder image 53 or the folder image 54 is detected, the document shape generation unit 23 refers to the access right storage unit 22. Then, it is determined whether access rights are set for this document (step 222).

If it is determined that access authority is set for this document, the document shape generation unit 23 generates a document shape in which display of the contents of the document is restricted (step 223). Then, text regarding access restrictions is added to this document shape (step 224). Additionally, information on participants who have access authority is added to this document shape (step 225).

As a result, the display control unit 24 generates a document in which the display of the content of the document is restricted based on the document shape generated in step 223, text added in step 224, and participant information added in step 225. The image 52 is controlled to be displayed (step 226). Specifically, the document shape generated in step 223, text added in step 224, and participant information added in step 225 is converted into reproduced wavefront information. Then, by outputting this reproduced wavefront information to the SLM 152, it is controlled to display a document image 52 in which the display of document contents is restricted.

Thereafter, the operation detection unit 21 determines whether a gesture of a specific participant touching the document image 52 displayed in step 226 has been detected (step 227).

As a result, if the operation detection unit 21 does not determine that a gesture of a specific participant touching the document image 52 has been detected, the operation detection unit 21 continues to perform the process of step 227.

On the other hand, if the operation detection unit 21 determines that a gesture of a specific participant touching the document image 52 has been detected, the document shape generation unit 23 generates a document shape in which display of the contents of the document is not restricted. (Step 228).

Further, even if it is not determined in step 222 that access authority is set for this document, the document shape generation unit 23 generates a document shape in which display of the contents of the document is not restricted (step 228).

Thereby, the display control unit 24 controls to display the document image 52 in which the display of the document contents is not restricted based on the document shape generated in step 228 (step 229). Specifically, the document shape generated in step 228 is converted into reproduced wavefront information. By outputting this reproduced wavefront information to the SLM 152, control is performed to display a document image 52 in which the display of document contents is not restricted.

[Operation of information display device]
FIG. 11 is a flowchart showing a third operation example of the information display device 10 when displaying the document image 52 in the air. This third operation example is an operation example when displaying the third aspect of the document image 52 shown in FIG. 6. Also here, it is assumed that the folder image 53 shown in FIG. 3(b) or the folder image 54 shown in FIG. 7(a) is displayed in the display space 30 prior to the operation.

As shown in the figure, in the information display device 10, the operation detection unit 21 first determines whether a gesture of a specific participant selecting a document using the folder image 53 or the folder image 54 is detected (step 241 ).

As a result, if the operation detection unit 21 does not determine that the gesture of a specific participant who selects a document using the folder image 53 or the folder image 54 has been detected, the operation detection unit 21 continues to perform the process of step 241.

On the other hand, if the operation detection unit 21 determines that a gesture of a specific participant selecting a document using the folder image 53 or the folder image 54 is detected, the document shape generation unit 23 restricts the display of the content of the document. A document shape is generated in a state in which no data is displayed (step 242).

Next, the document shape generation unit 23 refers to the access right storage unit 22 and determines whether an access right is set for this document (step 243).

If it is determined that access authority is set for this document, the document shape generation unit 23 places a background image 523 on the back side of the document shape generated in step 242 to restrict viewing by other participants. (Step 244). Then, the process advances to step 245.

Further, if it is not determined that access authority is set for this document, the document shape generation unit 23 proceeds to step 245 without placing the background image 523 on the back side of the document shape generated in step 242.

This causes the display control unit 24 to display the document image 52 based on the document shape generated in step 242 and with the background image 523 arranged in step 244, or the document shape generated in step 242. control (step 245). Specifically, the document shape generated in step 242 and on which the background image 523 is placed in step 244, or the document shape generated in step 242, is converted into reproduced wavefront information. Then, by outputting this reproduced wavefront information to the SLM 152, it is controlled to display the document image 52.

[Processor]
In this embodiment, the processor refers to a processor in a broad sense, and includes a general-purpose processor (for example, CPU: Central Processing Unit, etc.) and a dedicated processor (for example, GPU: Graphics Processing Unit, ASIC: Application Specific Integrated Circuit, FPGA). : Field Programmable Gate Array, programmable logic device, etc.).

Further, the operation of the processor in this embodiment may be performed not only by one processor, but also by a plurality of processors located at physically distant locations working together. Further, the order of each operation of the processor is not limited to the order described in this embodiment, and may be changed.

[program]
The processing performed by the information display device 10 in this embodiment is prepared, for example, as a program such as application software.

In other words, the program that implements this embodiment provides a computer with a function to accept an operation by a specific viewer to display a specific image, and a function to display a specific image that can be observed from the surroundings in response to the acceptance of the operation. This can be regarded as a program for realizing the functions of controlling the information on the observation target in a specific image to be displayed in mid-air with processing to restrict viewing by other observers.

It should be noted that the program for realizing the present embodiment can of course be provided by communication means, and can also be provided by being stored in a recording medium such as a CD-ROM.

DESCRIPTION OF SYMBOLS 10... Information display device, 21... Operation detection part, 22... Access right storage part, 23... Document shape generation part, 24... Display control part

Claims (6)

Equipped with a processor,
The processor includes:
Accepts operations to display a specific image by a specific observer,
In response to acceptance of the operation, the specific image that is observable from the surroundings is displayed in the air with processing for restricting viewing of information on the observation target in the specific image by other observers. control to
The process for restricting viewing includes a process for not forming information on the observation target on the specific image, and a process for specifying information regarding the viewing authority of the other observer to view the information on the observation target on the specific image. 1. An information processing apparatus comprising: processing for forming the information processing apparatus so as to face an observer . 2. The information processing apparatus according to claim 1 , wherein the process for restricting viewing further includes a process for forming a text regarding restricting viewing of the information to be observed on the specific image. The information processing apparatus according to claim 1, wherein the information regarding the viewing authority of the information on the observation target by the other observer is information on an observer who is not restricted from viewing the information on the observation target. . 4. The information processing apparatus according to claim 3, wherein the observer whose viewing is not restricted is an observer selected from pre-registered observers. The information processing apparatus according to claim 1, wherein the information regarding the viewing authority of the information on the observation target by the other observer is information on an observer who is restricted from viewing the information on the observation target. . to the computer,
A function that accepts operations for displaying a specific image by a specific observer,
In response to acceptance of the operation, the specific image that is observable from the surroundings is displayed in the air with processing for restricting viewing of information on the observation target in the specific image by other observers. Realize the function to control the
The process for restricting viewing includes a process for not forming information on the observation target on the specific image, and a process for specifying information regarding the viewing authority of the other observer to view the information on the observation target on the specific image. and a program to form the object to face the observer .

Images