X3D and Augmented Reality

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History

Web3D Consortium has a special interest in the recent AR initiatives and creating the AR Technology Road Map.

We have several member projects showcasing the feasibility of AR in X3D, particularly X3DOM open source produced by Fraunhofer IGD.

  • X3DOM can serve as an out of the box, standards-based solution for AR developers.
  • X3D and X3DOM continue to improve scripting options for X3D with HTML5 and this has good promise for AR applications.
  • X3DOM is being considered for potential standardization in a Mobile and/or Augmented Reality (AR) profile for X3D.

Our Web3D Korea Chapter members from ETRI are working on Mixed Reality visualization in X3D.

  • The Consortium as been working closely within W3C HTML5 WG to align our standards for 3D visualization on the Web.

Additional details are available at:

Web3D Consortium is also engaged with the AR standards, OGC, Khronos and W3C organizations for applying and adapting X3D.

  • Web3D Consortium will be starting an AR working group in March 2011 to develop a roadmap for AR standardization. We encourage your participation.
  • The technology discussions and meetings will be conducted publicly so that the widest possible comment and reaction can be considered from the Community. Feedback from this community will help X3D quickly and stably adopt new technologies to provide ongoing archival value for all 3D graphics.
  • Meanwhile Web3D Members still retain important membership rights of proposing significant new technology and considering patented technologies within a "safe haven" prior to public release.

Slideset summary from last summer's Mobile X3D ISO Workshop has also been linked: how Mobile, HTML5 and possibly Augmented Reality (AR) components might be alignable together as an X3D Mobile Profile.

Many new Web3D capabilities are becoming available. There has been no better time to discuss X3D technologies and also join the Web3D Consortium. Get involved in these early discussions to create the AR Technology Road Map. We look forward to your participation.

Draft Charter

Adding points to this section will be the subject of the next meetings.

Overview

The Augmented Reality Working/Special Interest Group focuses on utilizing/extending X3D functions to support augmented and mixed reality applications.

Discussions

These X3D AR discussion are part of a special interest group. This effort is moving forward by forming the X3D AR Working Group. The charter, roles and responsibilities are being defined.

Goals

Planned goals of AR WG/SIG include:

  • Collect requirements and describe typical use cases of using X3D for AR/MR application.
  • Develop and extend functions and nodes for X3D specification required to support AR/MR
  • Produce sample AR/MR applications with X3D

Tasks

Deliverables and Timeline

  • Use cases of X3D for AR/MR application - May, 2011 TBD
  • Requirements for X3D to support AR/MR applications - May, 2011 TBD
  • Proposed new/extended functions and nodes for X3D specification - TBD
  • Sample AR/MR applications with X3D - TBD

Meetings

Our twice-monthly teleconference for X3D and Augmented Reality is usually

  • Together with Korea Chapter Meeting:

1710-1810 (Pacific time)/2010-2110 (Eastern time) on 1st Wednesday, which is 0910-1010 (Korea time) on 1st Thursday.

  • AR only Meeting:

1710-1810 (Pacific time)/2010-2110 (Eastern time) on 3rd Tuesday, which is 0910-1010 (Korea time) on 3rd Wednesday.

Participation is open to everyone via the Web3D teleconference line. Non-members can request access information for this call, or Join Web3D!

Our next public teleconference is 15/16 March 2011.

Meeting agenda: TBA through the mailing list.

Discussions occur on the x3d-public@web3d.org mailing list. If the email traffic becomes very busy then we can create a separate email list.

Meeting minutes are also distributed on the X3D-Public mailing list and archived online.


Existing Proposals

Instant Reality

A Mixed Reality framework developed and maintained by Fraunhofer IGD, which uses X3D as application description language and which thus also provides corresponding nodes and concepts for developing AR/MR applications. The full documentation is on IR-Docs.

There also exist several tutorials on vision-based tracking with Instant Reality, which e.g. describe specific nodes like the IOSensor for retrieving the camera streams and the tracking results of the vision subsystem, as well as the PolygonBackground for displaying the camera images behind the virtual objects or some useful camera extensions to the X3D Viewpoint node etc: Tracking-Tutorial.

In addition, some papers on AR and MR rendering already were pubished at the Web3D conferences. Here, e.g. occlusions, shadows and lighting in MR scenes were discussed in the context of X3D:

There are moreover some more ideas on realistic MR rendering in X3D outlined in chapter 6 (p. 163 ff.), and especially in section 6.4, in the following PhD thesis: Pdf.


Korean Chapter

The Korea chapter has been keenly interested in the standardization of augmented reality in many aspects including the AR based contents. This is especially due to the recent world-wide appearances of mobile AR services and realization (from both academia and industry) of the definite need for exchanging service contents on different platforms.

Three main proposals have been made within the Korean chapter, by: (1) Gerard Kim from Korea University (also representing KIST), (2) Gun A. Lee (formerly with ETRI, now with HITLabNZ), and (3) Woontack Woo of Gwangju Inst. of Science and Tech.

Here, we briefly describe each proposal and provide links to documents with more detailed descriptions. These short summararies also try to highlight their distinctions with regards to other proposals, but not in the critical sense, but as a way to suggest alternatives.

(1) (2) (3)


Will fill in something before the meeting on April 7th, 2011 (G. J. Kim).

Participants

  • Anita Havele
  • Damon Hernandez
  • Don Brutzman
  • Gerard J. Kim
  • Gun Lee
  • Len Daly, Daly Realism
  • Timo Engelke
  • Sabine Webel
  • Yvonne Jung


References

Participation and Liaisons

  • Other partnerships can also be considered as appropriate.
  • Of interest is that Web3D Consortium Intellectual Property Rights (IPR) Policy insists on open, royalty free (RF) specifications. These coexist effectively with the Web Architecture and many different business models.
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