From: owner-3dui@hitl.washington.edu on behalf of Desney S Tan
[desney@cs.cmu.edu]
Sent: Friday, March 17, 2000 11:35 AM
To: MHZLiu@ntu.edu.sg
Cc: 3dui List
Subject: Re: FW: seek advice

Hey HongZeng,

I'm gonna do a quick and random braindump (most of it is cut and paste
from existing notes; by no means comprehensive, but a good start I
think). 

*** Doug Bowman did a great evaluation of viewpoint motion control
techniques. 
IEEE VR97???
Actually, I haven't looked at it recently, but I seem to recall a whole
section on travel in Doug's Thesis. He builds a nice taxonomy of
techniques and I would bet dollars to donuts that there'll be lot'sa
useful references in there. :) I would start THERE.

Rudy Darken (http://www.npsnet.org/~darken/) has done some work with
wayfinding and navigation in general. Not sure if he worked on any
specific navigation techniques, but he has some interesting stuff on
spatial knowledge and behaviors in VEs. 

Shinji Fukatsu did some work on Bird's Eye overview control which used
global overviews to control navigation in large VEs.

Colin Ware has done some work in exploration and virtual camera control.
Computer Graphics, Vol 24, No 4, pp 175-183, ACM 1990.

Of course, there's Rich Stoakley's WIM (Worlds in Miniature) done with
my advisor Randy Pausch (shameful plug). In this method, the user is
given a 3D proxy of the environment (a miniature 3D map to manipulate
objects and viewpoitns with).

I'm assuming you're looking at training these people to better work in
the real world? Can one effectively take someone with "spatial cognitive
problems" and stick them in VR and make it any better? I guess the
advantages are that you can take the physical load off while
teaching/training them to better recognize the environment. Then again,
isn't a large part of your "spatial cognition" in
proprioceptive/vestibular/somesthetic senses. Larry Hodges out at GVU
has done work in therapy with VR (might be a good guy to ping). Or are
you building a system to augment the environment and serve as realtime
guides? 

Being from Singapore, would be interested to know more about what you
guys are up to at NTU?
________________________________
 Desney Swee-Leong Tan
 School of Computer Science
 Carnegie Mellon University
 http://www.cs.cmu.edu/~desney/


Doug Bowman wrote:
> 
> Another question from a colleague - please reply both
> to him and the list.
> 
> --
> Doug A. Bowman, Ph.D.          (540) 231-7537
> Assistant Professor             bowman@vt.edu
> Computer Science        www.cs.vt.edu/~bowman/
> Virginia Tech
> 
> -----Original Message-----
> From: Liu Hongzeng (Dr) [mailto:MHZLiu@ntu.edu.sg]
> Sent: Friday, March 10, 2000 11:25 PM
> To: bowman@vt.edu
> Subject: seek advice and subscribe mailing list
> 
> I am a research fellow at Nanyang Technological University in Singapore.
> Now we are going to develop a navigational VE to help the elderly with
> spatial cognitive
> problems find their bedrooms, toilets or something else in their houses.
> Would you give me some advice on the navigation methods?
> Thank you in advance!
> Liu Hongzeng

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