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Shape modelling via higher-order active contours and phase fields
Published on Feb 15, 20084842 Views
For the most part, shape modelling has focused on modelling families of regions consisting of deviations around a given reference shape with a simple topology. There are applications; however, where t
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Chapter list
Shape modelling via higher-order active contours and phase fields00:00
Overview00:58
Problem: Entity extraction01:43
Problem formulation02:20
Building EG: Active contours03:16
Difficulties04:28
Building a better EG: Higher-order active contours05:42
Prior for networks06:58
Prior for a gas of circles07:49
Phase diagrams08:52
Optimization problem09:28
Example I: HOAC results - 110:31
Example I: HOAC results - 212:07
Example II: HOAC results - 112:46
Example II: HOAC results - 213:11
Problems with HOACs13:14
Phase fields14:24
Relation to active contours16:17
Why use them? - 118:31
Why use them? - 219:20
How to write HOACs as phase fields?20:17
Phase fields : Likelihood energies EI21:40
Optimization problem22:08
Major advantage of phase fields for HOAC energies22:19
Phase field HOACs: Results25:42
Phase field HOACs: VHR image results26:21
Phase field HOACs: Tree crown results26:47
Phase field HOACs: Results26:55
Future27:30