One of the limitations of ARToolkit is that its rotation accuracy is not as
good as its positional accuracy. We played around with projecting "laser
beams" from a fiducial marker and it jumped around all over the place. The
best success we have had is using the fiducial marker as a 2D cursor, and
then project from the users head along the cursor into the environment. This
only relies on the positioning accuracy of ARtoolkit (which is quite good)
and gives much better results. We use it outdoors on our Tinmith mobile
backpack system - see http://www.tinmith.net
regards,
Wayne
----------------------------------------------------------------------------
Wayne Piekarski - Researcher / Lecturer pho: +61-8-8302-3669
fax: +61-8-8302-3381
Assistant Director - Wearable Computer Lab mob: +61-407-395-889
School of Computer and Information Science ema: wayne@c ..............
University of South Australia www: http://www.tinmith.net
----- Original Message -----
From: "Alexandre Gillet" <gillet@s ..........>
To: <artoolkit@h ..................>
Sent: Tuesday, November 04, 2003 9:24 AM
Subject: using marker as pointer interface?
> Hi all,
>
> We are developping an application for structural biology using ARToolKit
> ( Here is a link to my demo at Vis'03:
> http://www.scripps.edu/pub/olson-web/pyartk/Publications/posterVis03.jpg)
>
> We build physical representation of molecule, we add marker on them and
> then with ARToolKit we are able to add virtual information on them, so
> augmented our tangible model. As now there are no interactivity and we
> are not able to point to certain place of the object and get information
> relative to the molecule (residu, atom, property)
>
> We want to use a pointer to be able to select or pick and get
> information from the 3D model that is display on the detected marker.
>
> I want to know if anybody has done that before and will be willing to
> share his experience with me.
>
> What will be the best way to trigger different action of the pointer
> (select, pick, display name ...) with using only one marker for the
pointer?
>
>
> Thanks in advance for any help.
> Alex
>
>
> --
> o Alexandre Gillet email: gillet@s ..........
> / The Scripps Research Institute,
> o Dept. Molecular Biology, MB-5,
> \ 10550 North Torrey Pines Road,
> o La Jolla, CA 92037-1000, USA.
> / tel: (858) 784-2053
> o fax: (858) 784-2860
>
>
>
>
|
