Where Are You Pointing? The Accuracy of Deictic Pointing in CVEs
Nelson Wong Univ of Saskatchewan, Canada
Download full text (pdf)>>
Related Papers>>
We investigate how well people can point and interpret the direction or another person’s pointing gesture. Our results show that deixis can be successful in CVEs for many pointing situations.
Pointing in Computerized Virtual Environments –
Effective in CVEs depending on accuracy of pointing
Issues:
In WoW you can point w/ your avatar, but can only do fixed animations.
Second Life: point = object highlights, bubbles go from hand to object. à this is called augmented pointing
Aug pointing is intrusive and complicated compared to natural pointing. But it is useful. Not used to show general directions, how to get to places (even though in real world we use pointing for such gestures)
Wong Interested in natural pointing … doesn’t effect the environment
Pointing Stages:
Observations of Distant Pointing:
Need high degree of accuracy – can’t really point to objects in a group.
Need to be in relative close proximity or general direction for out-of-view targets
(Accuracy requirement depends on situational circumstances)
Pointing Accuracy – Producing and Observing (Tested in real world room w/ laser pointer and in a desktop CVE using mouse to control an avatar arm, click to point)
Found that when people stood 6cm away from a wall (vs further) that they were more accurate.
Natural pointing in CVEs can be successful
Depth cues can make pointing easier
Want to integrate augmented (good for high accuracy) and natural pointing (good for situ that don’t require high accuracy)
Natural point requires additional input mappings
Nelson Wong Univ of Saskatchewan, Canada
Related Papers>>
We investigate how well people can point and interpret the direction or another person’s pointing gesture. Our results show that deixis can be successful in CVEs for many pointing situations.
Pointing in Computerized Virtual Environments –
Effective in CVEs depending on accuracy of pointing
Issues:
In WoW you can point w/ your avatar, but can only do fixed animations.
Second Life: point = object highlights, bubbles go from hand to object. à this is called augmented pointing
Aug pointing is intrusive and complicated compared to natural pointing. But it is useful. Not used to show general directions, how to get to places (even though in real world we use pointing for such gestures)
Wong Interested in natural pointing … doesn’t effect the environment
Pointing Stages:
(1) orientation: orient yourself so other person can see you and thing you r pointing at
(2) preparation: eye contact or simple gestures so recipient knows you’re about to point
(3) production: actual point gesture
(4) holding: keep point held
Observations of Distant Pointing:
Need high degree of accuracy – can’t really point to objects in a group.
Need to be in relative close proximity or general direction for out-of-view targets
(Accuracy requirement depends on situational circumstances)
Pointing Accuracy – Producing and Observing (Tested in real world room w/ laser pointer and in a desktop CVE using mouse to control an avatar arm, click to point)
(1) How accurately can people point?
o Real World more accurate pointing vs. in CVE
(2) How well can people interpret pointing direction?
o Less accurate than producing a pointing gesture
o Diff btw CVE and RW is only 3cm – so we can interpret pointing directions in CVEs almost as well as we can in the real world
Found that when people stood 6cm away from a wall (vs further) that they were more accurate.
Natural pointing in CVEs can be successful
Depth cues can make pointing easier
Want to integrate augmented (good for high accuracy) and natural pointing (good for situ that don’t require high accuracy)
Natural point requires additional input mappings
No comments:
Post a Comment