JP-7856753-B2 - Display control device

JP7856753B2JP 7856753 B2JP7856753 B2JP 7856753B2JP-7856753-B2

Inventors

松本健吾
木村真治
市川裕一
藤野宏暢
後藤修
栗原拓郎
山本泰士

Assignees

株式会社ＮＴＴドコモ

Dates

Publication Date: 20260511
Application Date: 20230213
Priority Date: 20220422

Claims (3)

An image acquisition unit that acquires a first image generated by imaging a predetermined range of real space at a first time point, and a second image generated by imaging the predetermined range at a second time point after the first time point, A detection unit for detecting the difference between the first image and the second image, A virtual object acquisition unit acquires a virtual object based on the difference detected by the detection unit, The system comprises a display control unit that controls the display of the virtual object, The detection unit detects the difference between the quantity or number of the first object shown in the first image and the quantity or number of the first object shown in the second image. The virtual object acquisition unit acquires a first virtual object corresponding to the increase in the first portion when the amount or number of the first portion of the first object shown in the second image increases compared to the amount or number of the first portion shown in the first image, and acquires a second virtual object different from the first virtual object corresponding to the decrease in the first portion when the amount or number of the first portion of the first object shown in the second image decreases compared to the amount or number of the first portion shown in the first image. Display control device.
The amount or number of the first portion shown in the second image increases compared to the amount or number of the first portion shown in the first image, meaning that the first portion is not shown in the first image but is shown in the second image. The amount or number of the first part shown in the second image is reduced compared to the amount or number of the first part shown in the first image, meaning that the first part is shown in the first image and not shown in the second image. The display control device according to claim 1.
The aforementioned virtual object is an image representing a character or a bird. The display control device according to claim 1.

Description

This invention relates to a display control device. Conventionally, XR technologies such as AR (Augmented Reality), VR (Virtual Reality), and MR (Mixed Reality) have become widespread. For example, Patent Document 1 below discloses an AR display management system including a portable terminal device and an authentication device that performs display authentication of a virtual object (AR image). The portable terminal device acquires location information indicating the location of the device and direction information indicating the imaging direction of the imaging unit. The portable terminal device transmits a virtual object display authentication request message to the authentication device. The display authentication request message includes an identifier of the virtual object, location information, and direction information. Based on the identifier, location information, and direction information contained in the received display authentication request message, the authentication device authenticates whether or not to permit the display of the virtual object corresponding to the identifier. The authentication device transmits a response message including the authentication result to the portable terminal device. Based on the received response message, the portable terminal device determines whether or not the display of the virtual object is possible. If the portable terminal device determines that it is possible to display the image, it will overlay a virtual object onto the captured image displayed on its display unit. Japanese Patent Publication No. 2019-87091 This is a block diagram showing the overall configuration of the information processing system 1 according to the embodiment.This is a block diagram showing the configuration of AR Glasses 30.This is a block diagram showing the configuration of the terminal device 40.This is a block diagram showing the configuration of server 20.This figure shows an example of a virtual object database DB1 according to the first embodiment.This figure shows an example of an image captured by the imaging device 324.This figure shows an example of an image captured by the imaging device 324.This figure shows an example of an image captured by the imaging device 324.This figure shows an example of how virtual objects are displayed.This figure shows an example of how virtual objects are displayed.This is a flowchart showing the operation of the processing unit 406.This figure shows an example of a virtual object database DB2 in the second embodiment.This figure shows an example of an image captured by the imaging device 324.This figure shows an example of how virtual objects are displayed.This figure shows an example of a virtual object database DB3 in the third embodiment.This figure shows an example of how virtual objects are displayed. A. First Embodiment The configuration of the information processing system 1 including the display control device according to the first embodiment of the present invention will be described below. A-1. System Configuration Figure 1 is a block diagram showing the overall configuration of the information processing system 1 according to the embodiment. The information processing system 1 comprises a display system 10 and a server 20. In this embodiment, the information processing system 1 is a system that presents various types of information to a user wearing the AR glasses 30 described later, using AR technology. Here, AR technology is a technology that, for example, in a device such as a see-through head-mounted display, overlays virtual objects onto real space, thereby allowing the user to perceive the virtual objects as existing in real space. Virtual objects include, for example, still images, videos, 3D CG models, and text. The AR glasses 30 may also output other types of information, such as audio information, when displaying virtual objects. The display system 10 and the server 20 are connected to each other via a communication network N, enabling them to communicate with one another. Although only one display system 10 is shown in Figure 1, the information processing system 1 can be equipped with any number of display systems 10. The display system 10 is used when a user views a virtual object. The display system 10 comprises AR glasses 30 and a terminal device 40. The terminal device 40 is an example of a display control device. The terminal device 40 is connected to the server 20 so as to be able to communicate with it. The terminal device 40 acquires virtual object data VD (see Figure 4) corresponding to the virtual object to be output by the AR glasses 30 from the server 20. The terminal device 40 also causes the AR glasses 30 to output the virtual object corresponding to the virtual object data VD acquired from the server 20. The terminal device 40 is preferably a mobile terminal device such as a smartphone or tablet. Furthermore, for example, the functions of the display system 10 described below may be realized using