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mesh + deformable + discontinuity
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Nathalie Laurent  
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 More options Oct 18 2001, 9:42 am
Newsgroups: sci.math.num-analysis
From: "Nathalie Laurent" <nathalie.laur...@rd.francetelecom.com>
Date: Thu, 18 Oct 2001 15:29:55 +0200
Local: Thurs, Oct 18 2001 9:29 am
Subject: mesh + deformable + discontinuity
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Hello,

I use hierarchical meshes  to compute motion vectors on a video in order to
realize motion tracking
As motion on a video is discontinue, my meshes can't  track the video for a
long time.
So i would like to know if there is anyone who knows techniques that
- avoid meshes to loose the "solution",
- can determine the point of discontinuities and separate the mesh into
submeshes to continue the tracking.
- can robustufy my approach

Moreover , i use a multi grid approach to estimate motion vectors betwwen 2
images t and t+1, is there better algorithm than
this one? Is there good choice of initialization of the process to speed
convergence?

thanks.

nathalie Laurent


 
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