MathGroup Archive 2001

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Taking Sides

  • To: mathgroup at smc.vnet.net
  • Subject: [mg31599] Taking Sides
  • From: "news.univie.ac.at" <gunz at treangeli.at>
  • Date: Fri, 16 Nov 2001 06:38:03 -0500 (EST)
  • Organization: Vienna University, Austria
  • Sender: owner-wri-mathgroup at wolfram.com

I have a set of points representing a 3-dimensional object (The data comes
from medical-imaging, from a CT scan). Given a defined boundary, I want to
assign some points to the INSIDE of the object and the rest to the OUTSIDE
of the object.
I expect this needs triangulation and then some kind of 'region growing' but
before I start I wanted to ask if anyone has solved a similar problem (or
point me to some literature).
Thanx

Philipp

P.S.: the number of points is HUGE, so the algorithm has got to be
efficient.







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