[tGarden-dev] tracking

[Sha X. W. <xi...@mi...>]

Dear TGardeners,

So, we  need better wireless, tracking, body-borne sensing...

Who can do what?  I'd like to track down a solution to only one of 
those problems.  Who can follow up on the wireless, beaming data 
(preferably by  802.11?) ?  Maybe the "mote" ?   (Gatech has a bunch 
of them)

On tracking -- here's a somewhat comprehensive survey:

  Rolland, J.P., Davis, L. D., and Y. Baillot, "A survey of tracking 
technology for virtual environments",
  in Augmented Reality and Wearable Computers. Ed. Barfield and 
Caudell (Mahwah, NJ), (2000)

Don has a radio system that'lll track finely  2" spatial, 4 ms or 17 
ms spatial resolution.  Cost $15K to $3K, tho.   Shall we buy a 
solution?  I may form a consortium to share gear here in N. Am (and 
maybe V2) for tgardens -- tg, tx ? whisper ?

Such devices could be worn like jewelry, on wrists, ankles, around 
neck,  ... pocketed (not so good since locations would vary too much 
from body to body), ...

Underlining Joel and nodding with Nik's observation, causality and 
connection are constrained by system latency.   In addition to 
reducing local latencies, we can also look to musical phrasing and 
temporal textures.

Xin Wei