[jitter] motion tracking down a narrow hallway

Why not simply using a camera (IR if required to use at low light),
subdivide the viewport into smaller chunks to reflect corridor segments, and
track activity per chunk by subtracting frames and/or do some averaging
should the noisiness of the video feed prove to be a problem?

Best wishes,

Ivica Ico Bukvic, D.M.A.
Composition, Music Technology, CCTAD, CHCI, CS and Art (by courtesy)
Director, DISIS Interactive Sound & Intermedia Studio
Virginia Tech
Dept. of Music - 0240
Blacksburg, VA 24061
(540) 231-6139
(540) 231-5034 (fax)
ico at vt.edu
http://www.music.vt.edu/faculty/bukvic/


> -----Original Message-----
> From: jitter-bounces at cycling74.com [mailto:jitter-bounces at cycling74.com]
> On Behalf Of jason
> Sent: Monday, March 24, 2008 1:53 PM
> To: jitter at cycling74.com
> Subject: [jitter] motion tracking down a narrow hallway
> 
> 
> Greetings all,
> 
> I have a unique challange that has been keeping me up at night
> with no solid solution as of yet.
> As there is usually a myriad of ways to achieve the same goal.
> I'm looking for some advice on tracking motion down a 16 meter
> long hallway.
> The idea is to generate color "blobs" with motion trails on a low
> resolution LED wall with a literal resolution of 160x10.
> 
> The "blobs" will need to follow multiple objects(IE: if two people
> are walking towards each other down the hallway each has a unique color
> "blob")
> Since the hallway is narrow and the celling is low I believe we will need
> multiple sources for range data to track the motion down the hall
> "accurately".
> The main question I have is what would be the best method for the
> tracking? IR, ultrasound or multiple cameras?
> 
> So far the best idea that we have come up with is to use multiple
> ultrasound sensors pinged sequentially to pool
> height data for input into jitter matrices.
> Comparing frames of data to then slide objects based on movement in the
> sonar array.
> 
> We were looking at using 16 of the max sonars (1 per meter)...
> basicx.com/Products/sonar/sonar.htm
> but I'm afraid that the area they look at may be too narrow.
> so that if someone stops between sensors the range data will return to
> default.
> 
> If anyone has recommendations I would love to hear them.
> Thanks in advance.
> -Jason
> 
> 
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