KR20130140339A - An implementation of multi-platform authoring system for augmented reality contents - Google Patents

An implementation of multi-platform authoring system for augmented reality contents Download PDF

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KR20130140339A
KR20130140339A KR1020120063629A KR20120063629A KR20130140339A KR 20130140339 A KR20130140339 A KR 20130140339A KR 1020120063629 A KR1020120063629 A KR 1020120063629A KR 20120063629 A KR20120063629 A KR 20120063629A KR 20130140339 A KR20130140339 A KR 20130140339A
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augmented reality
mobile
authoring tool
platform
content
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Korean (ko)
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박고광
김신형
이영민
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에이알비전 (주)
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    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T19/00—Manipulating 3D models or images for computer graphics
    • G06T19/006—Mixed reality

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Abstract

The present invention relates to an augmented reality content authoring system for a multi-platform, to support AR content authoring in a PC environment and a mobile environment.
To this end, the present invention comprises a user interface for adding augmented reality content selected in the PC environment on the reference marker to configure the scene graph, upload the content file to the server, and set the properties of each object in the scene graph. PC-based authoring tools, mobile-based authoring tools that include a user interface for adding scene selection by adding content selected in a mobile environment to the base marker, and uploading content files to the server, and content files created on the client It provides augmented reality content authoring system for a multi-platform including a multi-platform server for uploading, storing and controlling the access to the content file requested from each client to download the path and data of the requested file to the client, Normal Based on the same open source engine in PC and mobile environments, files of authored content can be stored on the server or downloaded through the server.

Description

An implementation of multi-platform authoring system for augmented reality contents}

The present invention relates to an augmented reality content authoring system for a multi-platform, and more particularly, to an authoring system for a multi-platform that can support augmented reality content authoring in a general PC environment and a mobile environment. It is about.

The development of mobile technology has led to the development of smartphones, devices that are more compact and more capable than computers, with the spread of smartphones, regardless of where they connect to the Internet or watch movies. Various functions can be accessed depending on the application. This has led to increased interest in augmented reality technology that provides users with a mixture of real and virtual information.

Augmented reality technology has a variety of applications. For example, a picture pops out of a fairy tale book, and furniture is pre-arranged in a moving or empty room as if it were alive. Here, the technology to make furniture be placed in the room realistically is important, but the content creation of furniture is also important.

Such augmented reality content authoring tools include ARToolKit, osgART, ComposAR, and AMIRE. These authoring tools differ in their form and character, but deal with authoring in a nearly common PC environment. In addition, many studies on augmented reality content authoring mainly deal with authoring in general PC environment.

Meanwhile, as an augmented reality content authoring tool in a mobile environment, Korean Unexamined Patent Publication No. 10-2012-0010041 (name: "method and system for authoring augmented reality content in a mobile terminal environment", published on Feb. 02, 2012), And Korean Unexamined Patent Publication No. 10-2012-0009949 (name: "a method and apparatus for producing and playing augmented reality content in a portable terminal", published on February 02, 2012) are known. The former is a method and system for acquiring a marker in the field using a mobile terminal and simply authoring augmented reality content using the acquired marker, wherein the marker is obtained from at least one image captured by the mobile terminal. Set an object that matches the object, generate augmented reality content using a marker and an object, and when the marker is displayed on the screen of the mobile terminal, the mobile terminal drives the generated augmented reality content to display the object on the screen of the mobile terminal. It is a technology that can be displayed on. The latter produces content and recognizes an image including the corresponding object, and acquires recognition information about an object corresponding to the content based on the recognition result, and generates and inputs an augmented reality content including the content and the recognition information. It is a technology to play augmented reality content for a video.

However, in a mobile augmented reality environment, a user should be able to create personalized content suitable for the current situation and use or share the generated content while moving or performing work using a mobile device with personality and mobility.

To this end, there is an increasing demand for technology that enables users to author personalized content at a place and time desired by users. In particular, a general-purpose user can directly utilize low-level languages such as C and C ++. Since it cannot be authored, development of an augmented reality content authoring tool capable of authoring an augmented reality content in a general PC environment and an augmented reality content in a mobile environment is required.

(Patent Document 1) KR 10-2012-0010041 A 2012.02.02 (Patent Document 2) KR 10-2012-0009949 A 2012.02.02

The present invention was created to meet the above demands, and is to provide an augmented reality content authoring system for a multi-platform that can support augmented reality content authoring in a general PC environment and a mobile environment.

In particular, the present invention implements a content authoring system based on the same open source engine in a general PC environment and a mobile environment, so that mutual compatibility and accessibility is good, and a file of the authored content is stored on a server or an access to a file through a server is easy. It is to provide an augmented reality content authoring system for a multi-platform.

One embodiment of the present invention for achieving the above object, the augmented reality content selected by the user from among the text, image, and 3D model is built in the PC environment by adding a scene graph on the reference marker to configure the content file Is uploaded to the server and is built on a PC-based authoring tool that includes a user interface for setting the properties of each object in its scenegraph, a mobile environment, based on content selected from text, images, and preset 3D model templates. Upload and save content files produced by the PC-based authoring tool and the mobile-based authoring tool, respectively, including a user interface for constructing scene graphs and uploading content files to the server by adding on top of Content file requested from each authoring tool By the access control for the path and the data of the requested file is augmented reality content authoring system for multi-platform, multi-platform server that contains the downloaded to a PC-based and mobile authoring tools based authoring tool.

In the augmented reality content authoring system according to the present invention, each authoring tool comprises an OSG library that renders 3D data in an authoring tool to be created and includes an engine for file input / output control. It is characterized by.

According to the augmented reality content authoring system for a multi-platform according to the present invention, by implementing a content authoring system based on the same open source engine in a general desktop environment and a mobile environment, the mutual compatibility and accessibility is good, In the content authoring as a part of the system that configures a social network service using augmented reality, such as social augmented reality (AR) advertising, augmented reality tagging (AR) ads in the future by storing the file or access to the file through a server It can be usefully applied as an element to induce user participation.

1 is a block diagram schematically illustrating the overall configuration of an augmented reality content authoring system for a multi-platform according to an embodiment of the present invention.
2 is a block diagram of a scene graph used in an augmented reality content authoring system for a multi-platform according to the present invention.
3 is an exemplary view of an authoring screen (a) and an augmented screen (b) illustrating an example of capturing an authoring tool in a general PC environment in an augmented reality content authoring system for a multi-platform according to the present invention.
4 is an exemplary view of an authoring screen (a) and an augmented screen (b) illustrating an example of capturing an authoring tool in a mobile environment in an augmented reality content authoring system for a multi-platform according to the present invention.

Hereinafter, the configuration and operation of an augmented reality content authoring system for a multi-platform according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

It is to be understood that the words or words used in the present specification and claims are not to be construed in a conventional or dictionary sense and that the inventor can properly define the concept of a term in order to describe its invention in the best possible way And should be construed in light of the meanings and concepts consistent with the technical idea of the present invention. Therefore, it should be understood that the embodiments described herein and the configurations shown in the drawings are only the most preferred embodiments of the present invention, and that various equivalents and modifications may be substituted for them at the time of the present application shall.

1 is a block diagram schematically illustrating the overall configuration of an augmented reality content authoring system for a multi-platform according to an embodiment of the present invention, Figure 2 is used in an augmented reality content authoring system for a multi-platform according to the present invention It is a block diagram of the scene graph.

As shown in FIG. 1, the augmented reality content authoring system for a multi-platform according to an exemplary embodiment of the present invention includes a PC-based authoring tool 10, a mobile-based authoring tool 20, and a multi-platform server 30. Is done.

The PC-based authoring tool 10 is built in a PC environment, the mobile-based authoring tool 20 is built in a mobile environment, and the PC-based authoring tool 10 and the mobile-based authoring tool 20 are both authoring tools to be created. Consists of an Open Scene Graph (OSG) library containing an engine for rendering 3D data and controlling file input / output. In particular, the PC-based authoring tool 10 and the mobile-based authoring tool 20 implemented in the present invention are implemented based on a Microsoft Foundation Class, thereby selecting a model on the screen rendered by the OSG viewer, or selecting a model and a screen. It is desirable to be able to be used for the purpose of operating the. In addition, the PC-based authoring tool 10 and the mobile-based authoring tool 20 of the present invention, as illustrated in Table 1 below, 3dc, asc, 3ds, ac, bsp, dae, dw, dxf, fbx, gem, with extensions selected from geo, iv, wrl, ive, logo, lwo, lw, lws, md2, obj, ogr, flt, osg, shp, stl, sta, x, and all extensions supported by performer loaders Configure the content files of the modeling tools to be included in the scene graph. As a result, the output of the scene graph authored by the PC-based authoring tool 10 or the mobile-based authoring tool 20 follows the OSG file format, and the file upload is possible to the multi-platform server 30.

Plugin name Explanation extension read writing 3dc 3DC point clound reader .3dc .asc O X 3ds 3D Studio .3ds O O ac3d AC3D modeler .ac O O bsp Quake3 BSP .bsp O X dae COLLADA 1.4.x .dae O O dw Design Workshop Database .dw O X dxf Autodesk DXF Reader .dxf O X fbx Autodesk FBX .fbx O O geo Geo .gem .geo O X inventor Open Inventor format .iv .wrl O O ive Native osg binary .ive O O logo Logo database .logo O X lwo Lightwave object .lwo .lw .geo O X lws Lightwave scene .lws O X md2 Quake MD2 .md2 O X obj Alias Wavefront .obj O O ogr .ogr O X openflight Multigen Openflight .flt O O osg Native osg ascii .osg O O pfb Performer loader All extensions supported by Performer loaders O X shp ESRI Shapefile .shp O X stl Stereolithography file .stl .sta O X vrml VRML2 .wrl O X x DirectX 3D model .x O X

On the other hand, the OSG (Open Scene Graph) is a 3D data rendering and file input / output control engine, an open source rendering engine that can be used in a mobile environment as well as a general PC environment. The reason why OSG controls file input / output is to use a file format supported by OSG itself. In addition, such OSG may be written in C ++ language based on OpenGL, and may have a form similar to STL (Standard Template Library) commonly used in C ++ language.

2 is a diagram of a scene graph for use in the PC-based authoring tool 10 and the mobile-based authoring tool 20. As shown in FIG. 2, the OSG has a graph form consisting of nodes and edges conceptually. The scene graph configuration from a programming perspective is that classes and objects become nodes, and internal functions Connecting to another object using is a trunk. In the PC-based authoring tool 10 and the mobile-based authoring tool 20, a scene graph composed of nodes and edges is generated and delivered to a viewer object as shown in FIG. 2 according to a predetermined formula using an internal function. The scene graph is then rendered on each PC or mobile screen.

In particular, the PC-based authoring tool 10 may add a content selected by a user among text, images, and 3D models to a marker to form a scene graph and set a property of each object in the scene graph. (11) is comprised.

3 is an exemplary view of an authoring screen (a) and an augmented screen (b) illustrating an example of capturing an authoring tool in a general PC environment in an augmented reality content authoring system for a multi-platform according to the present invention. The user interface 11 of the base authoring tool 10 may include a first frame 11a showing a scene graph rendered by the OSG viewer and a second frame 11b showing items and attributes of contents constituting the scene graph. Can be. In addition, the user interface 11 of the PC-based authoring tool 10 provides an augmented reality (AR) test function that can augment content based on a marker using a PC-based web camera, and separately output the results. It may be configured to be confirmed through the frame (11c).

The mobile-based authoring tool 20 is configured to include a user interface 21 for constructing a scene graph by adding a content selected from a text, an image, and a preset 3D model template on a reference marker.

4 is an exemplary view of an authoring screen (a) and an augmented screen (b) illustrating an example of capturing an authoring tool in a mobile environment in an augmented reality content authoring system for a multi-platform according to the present invention. The user interface 21 of the authoring tool 20 may consist of a single frame 21a showing a scene graph rendered by the OSG viewer. In addition, the user interface 21 of the mobile-based authoring tool 20 provides augmented reality (AR) test function that can augment content based on a marker using a mobile-based camera, and the result is a separate frame. It may be configured to check through (21c).

The multi-platform server 30 uploads and stores the content files produced by the clients (PC-based authoring tool 10 and mobile-based authoring tool 20) via a wired or wireless network, and stores the content files requested from the respective authoring tools. By controlling the access to the configuration, the path and data of the requested file can be downloaded to the client (PC-based authoring tool 10 and mobile-based authoring tool 20). To this end, the multi-platform server 30 is implemented with Apache Tomcat 6.0, and the web service is preferably implemented using JAVA-based Spring MVC (Model-View-Controller) in the Eclipse Indigo environment.

In particular, the multi-platform server 30 receives a request in the form of HTTP from the client, the result (file path and data) of the request is configured to be delivered to the client in the form of JSON (JavaScript Object Notation) data format. This data format reduces the size of the data, allowing for faster analysis on mobile devices. This allows the client to download the content through the file path obtained by analyzing the response data and render it more quickly.

In addition, the multi-platform server 30 is preferably configured to efficiently access the database by using a framework (Hibernate) that executes a structured query language (SQL) query by executing Java code. These frameworks can be coded more easily because they can be executed by objectizing SQL queries to Java code, which can reduce the amount of code. This allows efficient database access.

According to the augmented reality content authoring system for a multi-platform according to the present invention of the above configuration, since the OSG used as an engine for controlling rendering and file input / output supports multi-platform, not only PC environment but also mobile based iPhone Environment (iOS), Android phone driving environment is supported, it is possible to author augmented reality content in the general desktop environment and mobile environment, and also through the multi-platform server because both authoring tools use the same framework It is possible to receive content that is being authored in a PC environment and author it on mobile and vice versa.

In addition, in the case of a mobile authoring tool, the target target (marker image) can be registered in real time in the field, and the user can compose a scene with a photo, an image, and a provided 3D template through a simple interaction. The reality content authoring system will be able to be applied as a component for inducing user participation in content authoring as part of a system for constructing social network services using augmented reality such as social AR advertising and AR tagging.

As described above, the system of the present invention has been described with reference to a specific embodiment, but the present invention is not limited to the above embodiment, but is a recording medium including instructions executable by a computer, such as a program module executed by a computer. It may also be implemented in the form of. In addition, it is possible for those skilled in the art to various modifications and variations from this description. Accordingly, it is intended that the scope of the invention be defined by the claims appended hereto, and that all equivalent or equivalent variations thereof fall within the scope of the present invention.

10: PC-based authoring tool 11, 21: user interface
11a-11c, 21c: Frame 20: Mobile based authoring tool
30: multi-platform server

Claims (10)

Build in PC environment, add augmented reality content selected by user among text, image, and 3D model on top of the marker to compose scene graph, upload content file to server, and A PC-based authoring tool 10 including a user interface 11 for setting an attribute;
A user interface 21 built in a mobile environment and configured to add augmented reality content selected from text, images, and preset 3D model templates on top of a marker to construct a scene graph and upload a content file to a server. Mobile based authoring tool 20, including;
Upload and store content files produced by the PC-based authoring tool and the mobile-based authoring tool, respectively, and control access to the content files requested from the respective authoring tools to store the path and data of the requested file. Augmented reality content authoring system for a multi-platform comprising a; multi-platform server for downloading to the authoring tool and the mobile-based authoring tool.
According to claim 1, wherein the PC-based authoring tool 10 and the mobile-based authoring tool 20,
An augmented reality content authoring system for multi-platform, characterized in that the authoring tool to render three-dimensional data and comprises an OSG (Open Scene Graph) library containing an engine for file input / output control.
The method of claim 2, wherein the user interface 11 of the PC-based authoring tool,
A first frame 11a showing a scene graph rendered by the OSG viewer;
Augmented reality content authoring system for a multi-platform, characterized in that consisting of; a second frame (11b) showing the items and properties of the contents constituting the scene graph.
The method of claim 2, wherein the user interface 21 of the mobile-based authoring tool,
Augmented reality content authoring system for multi-platform, characterized in that composed of a single frame (21a) showing a scene graph rendered by the OSG viewer.
The method of claim 2, wherein the PC-based authoring tool 10 and the mobile-based authoring tool 20,
The augmented reality content authoring system for multi-platform, which is composed based on a Microsoft Foundation Class and used to select a model on a screen rendered by an OSG viewer or to manipulate a model and a screen.
The method of claim 2, wherein the PC-based authoring tool 10 and the mobile-based authoring tool 20,
3dc, asc, 3ds, ac, bsp, dae, dw, dxf, fbx, gem, geo, iv, wrl, ive, logo, lwo, lw, lws, md2, obj, ogr, flt, osg, shp, stl, An augmented reality content authoring system for multi-platform, characterized in that it is implemented to put content files of modeling tools with extensions selected from all extensions supported by sta, x, and performer loaders into the scene graph.
3. The method of claim 2,
The output of the scene graph authored by the PC-based authoring tool 10 and the mobile-based authoring tool 20 follows an OSG file format and is configured to allow file upload to the multi-platform server 30. Augmented reality content authoring system for multi-platform.
The method of claim 2, wherein the user interface of the PC-based authoring tool 10 and the mobile-based authoring tool 20,
It provides augmented reality (AR) test function that can augment content based on markers using PC-based web camera or mobile-based camera. Augmented reality content authoring system for.
The method of claim 2, wherein the multi-platform server 30,
Receiving a request in the form of HTTP from the client, and the result (path and data of the file) for the request is delivered to the client in the form of JSON (JavaScript Object Notation) data format for augmented reality content authoring system for multi-platform.
The method of claim 2, wherein the multi-platform server 30,
An augmented reality content authoring system for multi-platform, characterized by accessing the database using Hibernate, a framework for objectizing and executing SQL queries in Java code.
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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101478954B1 (en) * 2014-08-21 2015-02-04 (주) 제이제이엠엔터테인먼트 Apparatus and Method for providing augment reality based on children's song
KR101652719B1 (en) * 2015-06-26 2016-09-01 주식회사 가이스트코리아 System for supporting the authoring tool for 3d contents
KR20180042589A (en) * 2016-10-18 2018-04-26 디에스글로벌 (주) Method and system for providing augmented reality contents by using user editing image
KR20180091519A (en) * 2017-02-07 2018-08-16 한국전자통신연구원 Apparatus for vr content authoring for vr experience and method using the same
WO2019017582A1 (en) * 2017-07-18 2019-01-24 네이버랩스 주식회사 Method and system for collecting cloud sourcing-based ar content templates and automatically generating ar content
US11222478B1 (en) 2020-04-10 2022-01-11 Design Interactive, Inc. System and method for automated transformation of multimedia content into a unitary augmented reality module
KR102361735B1 (en) * 2021-09-09 2022-02-14 (주)국토공간정보 Surveying systems for geodetic mapping of underground facilities
KR20220103407A (en) * 2021-01-15 2022-07-22 국방과학연구소 Method for generating scene graph of objects in images and electronic device using the same

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101478954B1 (en) * 2014-08-21 2015-02-04 (주) 제이제이엠엔터테인먼트 Apparatus and Method for providing augment reality based on children's song
KR101652719B1 (en) * 2015-06-26 2016-09-01 주식회사 가이스트코리아 System for supporting the authoring tool for 3d contents
KR20180042589A (en) * 2016-10-18 2018-04-26 디에스글로벌 (주) Method and system for providing augmented reality contents by using user editing image
KR20180091519A (en) * 2017-02-07 2018-08-16 한국전자통신연구원 Apparatus for vr content authoring for vr experience and method using the same
WO2019017582A1 (en) * 2017-07-18 2019-01-24 네이버랩스 주식회사 Method and system for collecting cloud sourcing-based ar content templates and automatically generating ar content
US11222478B1 (en) 2020-04-10 2022-01-11 Design Interactive, Inc. System and method for automated transformation of multimedia content into a unitary augmented reality module
KR20220103407A (en) * 2021-01-15 2022-07-22 국방과학연구소 Method for generating scene graph of objects in images and electronic device using the same
KR102361735B1 (en) * 2021-09-09 2022-02-14 (주)국토공간정보 Surveying systems for geodetic mapping of underground facilities

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