[Korea-chapter] [X3D] Korea Chapter Meeting, January 4th: H-Anim, AR/MR

Don Brutzman brutzman at nps.edu
Wed Jan 4 18:33:38 PST 2012

Thank you for the agenda Myeong Won Lee.  Also thank you for
representing the interests of other members in the Korea Chapter

Attendees:  Myeong Won Lee, Dick Puk, Gun Lee, William Glascoe, Don Brutzman.

Regrets Anita Havele, Len Daly, Kwan Hee Yoo.

On 1/3/2012 10:22 PM, "Myeong Won Lee" wrote:
> The Korea Chapter meeting will be held with agenda items as follows:
> 1. H-Anim motion data definition for ISO NWIP submission

NWIP = New Work Item Proposal, in which Web3D Consortium can recommend
to ISO participants that work may be undertaken that may result in
potential future changes to the X3D Specification series.  This allows
helpful feedback from national bodies and from the SC24 standardization
committee.  ISO approval of an NWIP is usually the first step in
preparing for new technical additions that ultimately receive receive
full ISO review.

We discussed how it would be further important to reestablish activity
in the Web3D H-Anim Working Group to pursue the following work proposals.
This would be a good opportunity to rejuvenate group membership,
collect contributions, possible issue calls for proposals, etc.
It would also be a good opportunity for a few individuals to show
leadership by guiding activity as group cochairs.  For that to happen
well, it is usually a good idea to build in the scope of work as part
of a new Working Group Charter.

Group visibility can be open, or else can be restricted to Web3D
members.  Contributors would have to be Web3D members who have agreed
to the Intellectual Property Rights (IPR) policy - this protection
ensures that we keep X3D royalty free for any use.

It was agreed that one important goal would be to provide as much
backwards compatibility as possible.  If new work were to add to the
existing ISO specification, we could make the new work an Amendment.
Otherwise we could republish the entire document as a Revision.
This would be the choice of the working group.

> Title: Revision of ISO/IEC 19774:2006 Humanoid Animation (H-Anim)
> Scope: The new work to be addressed is a revision of ISO/IEC 19774.
> The revision work includes the following:
> 1) Definition of a humanoid character model capable of generating motion from captured motion data
> 2) Definition of a humanoid character model capable of generating motion using a general motion definition such as keyframe, interpolation, kinematics, and dynamics for human figures.
> 3) Definition of motion data for transferring or exchanging motion between different human models
> 4) Definition of a motion data interface for including motion captured data
> 5) Definition of behaviour modelling data
> 6) Definition of human facial data

For each of these 6 items, there have been interesting contributions
over the years:
- by Korea Chapter members,
- by browser companies,
- by some universities, and
- by paper contributions published in the Web3D Conference series.
Therefore collecting all recent references and contacting the authors
would be a good way to help get this group activity started.

We discussed other possible work regarding insertion of video-based humans into
3D environments, and the inverse of 3D graphics humans into video displays.
There are some obvious overlaps with the X3D AR/MR standardization efforts.
Kwan Hee Yoo is most interested in these topics and presented slides/video
on his research in this area during the 16-17 November 2011 meeting in Seoul.

> It is intended to define a standard model for human characters with a motion definition interface.
> It is the enhancement of the original H-Anim model of ISO/IEC 19774 with motion definition.

Of note is that the X3D abstract specification and encodings currently implement
19774 exactly, and so we would want to design/implement/test/evaluate these H-Anim
extensions in X3D as a parallel effort.

It is worth noting that X3D support for H-Anim implementations is pretty good,
and that most functionality is implementable in a browser-independent way
by using prototypes.  Therefore developing and demonstrating 19774 extensions
in X3D should help to accelerate this work.

Further information about H-Anim:


ISO 19774 H-Anim Specification

X3D Humanoid animation (H-Anim) component

H-Anim examples

Player support - shows 5 full implementations and 3 partial implementations

Tool support - shows 5 full implementations and 2 partial implementations

X3D Tooltips include multilingual synopses of H-Anim nodes and fields

Prior work that was not completed:
H-Anim:  Accommodating Diverse Models is on the member wiki

H-Anim mailing list and archives (for subscribers):

[Len and Anita, it was noted that the X3D Resources and wiki pages were
 hard to find from the home page]

Myeong Won Lee also has an H-Anim implementation in X3D, and plans to provide
further documentation about that on a future teleconference.  Her demos over
the years showing animated human characters using this tool have always been
excellent and impressive.

Some additional prior work on behaviors was done by NPS and published in the
H-Anim examples archive:
HAnim Behavior Prototypes
	Prototypes for HAnimBehavior node, which collects OrientationInterpolators
	for aggregate animation of an H-Anim humanoid model, and
	HAnimBodyBehaviorChooser, which selects one body and
	enables/disables multiple aggregated behaviors.

Wondering:  might a technical relationship be explored for possible use of
H-Anim by the Medical working group?  Ideas are welcome.  (In my opinion,
the human skeleton will never go "out of style" and H-Anim is very good at that.)


Past H-Anim chairs were Joe Williams and Keith Victor, it would be good to talk
to them about whether we can get organized to resume group efforts.

We plan to talk about this again in one month on this teleconference.
Further mailing list dialog on H-Anim is welcome.

> 2. AR/MR standardization
> At the SC24 WG9 meeting in Seoul, November 17th, the New Work Items for WG9 were finalized as follows:
>>  Establish a small focus group to work on clarification of terms and their exact definitions in the ARC domain.
>>  - Develop and study ARC reference models through case studies
>>  - Develop a reference model for a sensor interface (including gesture interface abstraction) for ARC
>>  - Develop a reference model for human character representation and control for ARC
> Web3D Korea has joined in the development of the ARC reference models.
> We will provide our best efforts for AR/MR standardization in two ways, as follows:
> - X3D based AR/MR standardization in the Web3D Consortium as well as SC24 WG6
> - ARC reference models in SC24 WG9
> We anticipate enhancing the AR/MR functionality of X3D with the efforts in WG9.

Everyone is happy to see these developments and there are also a number of
commitments to proceed together.  Additional references follow.

For X3D developments in AR/MR, dialog is encouraged on the x3d working group
mailing lists (x3d-public at web3d.org and x3d at web.org)

AR Working Group has Gun Lee and Yvonne Jung as chairs.

X3D AR Wiki

Augmented Reality Roadmap for X3D

Anita:  can you please link in the recent slideset you presented at
the Basel Switzerland meeting on AR.  Additional links on the wiki
are welcome.

Note upcoming teleconference meeting listed in section below.

> 3. New work items proposals
> [Web3D 2006-1] Units specification (Myeong Won Lee)
> [Web3D 2008-1] Projective texture mapping (Kwan-Hee Yoo)
> [Web3D 2009-1] Mixed reality visualization (Gun Lee)
> [Web3D 2009-2] Macro Parametric Approach for CAD Translation to X3D (Soonhung Han)
> [Web3D 2009-3] H-Anim motion data definition (Myeong Won Lee)
> [Web3D 2009-4] Mobile X3D functions (Myeong Won Lee)
> [Web3D 2009-5] Geometric medical data (Kwan Hee Yoo)
> [Web3D 2009-6] X3D Digital Textbook (Kwan Hee Yoo)
> [Web3D 2010-1] X3D GPS interface (Myeong Won Lee)
> [Web3D 2010-2] A management system of security devices in 3D virtual space (Kwan-Hee Yoo)
> [Web3D 2010-3] A CCTV node for the CCTV control of virtual environment management systems
> [Web3D 2010-4] CAD to X3D conversion (Hyokwang Lee)
> In progress..

No further updates.

> 4. Scheduling January meetings
> This month's teleconferences will be as follows:
> (1st Wed) January 4th at 5:00pm PDT (5th, Thursday, 10:00am KST): Korea Chapter
> (2nd Wed) January 11th at 5:00pm PDT (12th, Thursday, 10:00am KST): CAD WG
> (4th Wed) January 25th at 10:30am CEDT, 6:30pm KST, 1:30am PDT: AR WG

Additional meetings will be scheduled later this month for X3D E-books
and H-Anim followups.  Myeong Won Lee and Kwan Hee Yoo will discuss.

> Myeong Won Lee
> College of IT, U. of Suwon
> Hwasung-si, Gyeonggi-do, 445-743 Korea
> Tel) +82-31-220-2313, +82-10-8904-4634
> E-mail) mwlee at suwon.ac.kr

Total discussion:  90 minutes.  Thanks everyone for contributing.
Happy New Year!   the Year of the Dragon.  8)

all the best, Don
Don Brutzman  Naval Postgraduate School, Code USW/Br       brutzman at nps.edu
Watkins 270,  MOVES Institute, Monterey CA 93943-5000 USA   +1.831.656.2149
X3D graphics, virtual worlds, navy robotics http://faculty.nps.edu/brutzman

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