Difference between revisions of "GeometryProcessing/Spring2009/Schedule/Spectral Processing4"

From VistrailsWiki
Jump to navigation Jump to search
(New page: * Brad Loos Okay, what is isometry, as in ''symmetries of a shape which are invariant up to isometry''. Is there a more technical definition than just something that is the same about a s...)
 
 
(One intermediate revision by the same user not shown)
Line 2: Line 2:


Okay, what is isometry, as in ''symmetries of a shape which are invariant up to isometry''. Is there a more technical definition than just something that is the same about a shape even if you rotate/scale/animate it?
Okay, what is isometry, as in ''symmetries of a shape which are invariant up to isometry''. Is there a more technical definition than just something that is the same about a shape even if you rotate/scale/animate it?
* Manasi Datar
Is the Green's function using the distance as a 'measure' of covariance in some sense ? <br>
Secondly, is there a concept similar to Mutual Information (used to measure similarity/correspondence while aligning images), defined for meshes ? It may not work in all cases, but could help eliminate naive one-to-one matching !

Latest revision as of 22:38, 5 February 2009

  • Brad Loos

Okay, what is isometry, as in symmetries of a shape which are invariant up to isometry. Is there a more technical definition than just something that is the same about a shape even if you rotate/scale/animate it?

  • Manasi Datar

Is the Green's function using the distance as a 'measure' of covariance in some sense ?
Secondly, is there a concept similar to Mutual Information (used to measure similarity/correspondence while aligning images), defined for meshes ? It may not work in all cases, but could help eliminate naive one-to-one matching !