Introduction

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Augmented Reality Markup Language 2.0 Manil Maskey Information Technology & Systems Center University of Alabama in Huntsville Martin Lechner Wikitude ESIP Summer Meeting 2012

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Augmented Reality Markup Language 2.0 Manil Maskey Information Technology & Systems Center University of Alabama in Huntsville Martin Lechner Wikitude ESIP Summer Meeting 2012. Introduction. Augmented Reality Semantic Context ARML 1.0 Why? - PowerPoint PPT Presentation

Transcript of Introduction

Page 1: Introduction

Augmented Reality Markup Language 2.0

Manil MaskeyInformation Technology & Systems Center

University of Alabama in HuntsvilleMartin Lechner

Wikitude

ESIP Summer Meeting 2012

Page 2: Introduction

Introduction

• Augmented Reality• Semantic Context• ARML 1.0• Why?• Allow Distribution of AR content on

multiple AR platforms and Applications

Page 3: Introduction

Scope• Target mobile, mainly geo-location based

AR applications• Comprises of many different fields– WebGL, Computer Vision, etc.

• Why not KML?– KML built for map-based applications– Not flexible enough to bridge the gap between

map and AR based (geo-)applications when defining the presentation of POIs and allowing tie-ins from other AR-relevant topics, such as visual tracking

– KML also lacks the possibility of allowing dynamic components, such as JavaScript, to interact with the AR objects.

Page 4: Introduction

Scope..Example

• ARML 2.0 could allow the specification of a reference image for a particular POI + a visual representation of the POI in case the reference image is detected in the video stream• However, ARML 2.0 will not specify how the

tracking should be done and what algorithms should be used to detect the reference image, this is supposed to be done in a group focusing on WebGL.

Page 5: Introduction

StakeholdersAnalyze who is part of an AR ecosystem and why,

Which stakeholder is influenced by a standards discussion.

How the stakeholders could benefit from a new standard

Page 6: Introduction

StakeHolders (Content)

Content Producers: Create content for multiple occasions, not just for delivering the content to an AR application. Real life examples include travel book writers or tourist bureaus.

Content Publishers: Receive content from the Content Producer and specifically publish the content to an AR application. Examples include publishing agencies specialized in mobile publishing.

Page 7: Introduction

Stakeholders (Software)AR Software Developers:

• Develop software/app• Receive content from the Content Publisher

Device Platform Providers: • Provide the platform the AR Software Developer

is using to build the AR application• Operating systems and development platforms. • Provide the interface between the software and

hardware. Google (Android), Apple (iOS), Nokia (Symbian)…

Software Publisher: • Make the AR Software available to the market.

AR Software Developer delivers the software to the Software Publisher.

• Mobile stakeholder is typically represented by Android Market, App Store, Ovi Store, App World etc.

• It could also be a webpage advertising the AR for download

Page 8: Introduction

Stakeholders (Hardware/End User)Hardware Enablers:

• Manufacture hardware necessary to build AR applications, including chipsets, sensors, cameras, network, battery etc.

• Essentially, the Device Platform Provider builds the platform on top of the hardware.

• Examples include Qualcomm, Nokia, HTC etc.

End Users: • Download the application from the Software

Publisher• Provide feedback

Page 9: Introduction

ArchitectureGeneric AR software architecture:6 subsystems

Application Tracking Interaction Presentation Context

World Model

Page 10: Introduction

Architecture (Client)Tracking:

Observe one or multiple properties in the real world Typically done via sensor evaluation

AggregationMake accessible to the application

Interaction: Subsystem that takes care of user interaction.

Presentation: Subsystem deals with rendering - visual, audio,

haptic etc

Data Filtering: The client needs to filter data based on real-

time knowledge gathered constantly on the client (location, camera video stream etc.), before they are presented in the application.

Page 11: Introduction

Architecture (Server)

World Model:Describes the world around the user and

stores information about the virtual objects and their presentations.

Search Engine: Queries data based on certain query

parameters sent by the client

Page 12: Introduction

Proposed Standardizable Components

Page 13: Introduction

Related AR Technologies and Standards

• Geospatial: GML GeoJSON

• 3D:

• Web Technologies:

• And much more ...

Page 14: Introduction

Example Issue

• 3D Models in Augmented Reality– Many proprietary formats (game engines etc.)

• obj• md2, md5• 3ds• ...

– A couple of standardized formats• COLLADA, X3D

• 3D is complex!

• Different ways to– define the model– define animations– define textures/shaders/materials

Page 15: Introduction

Result

Troublesome 3D Format Conversion

Developer Frustration

Incomplete AR Content

User Frustration

Solution: Interoperability between AR and 3D community!

Page 16: Introduction

Starting Point

• KML for POI geometries (+ any other geo data format which can be used as input, such as GeoJSON, GeoRSS or GML)

• ARML 1.0• KARML and ARGON• CityGML• X3D, COLLADA• WebGL• JavaScript• HTML and JavaScript as a reference architecture, supporting

declarative and dynamic/interactive components.

Page 17: Introduction

ARML 2.0 SWG

201320122010 2011

ARML 1.0 used as a non-

standardized AR data format

ARML 2.0 Standards Working Group

founded within the OGC, 6 founding

members

30+ members join founding six

Finalization and signed-off ARML 2.0 standard

ARML 2.0 proposed to

respond to new needs in AR

First (internal) Draft of ARML 2.0 spec,

membership increases to 47

M EM BER S

http://www.opengeospatial.org/projects/groups/arml2.0swg

Page 18: Introduction

Mobile App Prototype

Page 19: Introduction

Contact

Manil Maskey

Information Technology & Systems Center

University of Alabama in Huntsville

[email protected]


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