2012 Winter Project Week:PNSnormals - Revision history

Bpaniagua: /* Key Investigators */

2012-01-12T17:36:43Z

Key Investigators

Bpaniagua at 20:06, 9 January 2012

2012-01-09T20:06:44Z

Bpaniagua at 18:24, 29 November 2011

2011-11-29T18:24:22Z

Bpaniagua: /* Delivery Mechanism */

2011-11-29T18:21:04Z

Delivery Mechanism

Bpaniagua: Created page with 'NOTOC Image:PW-SLC2012.png|Projects List Image:PNSPipe.png|Principal Nested Spheres methodology ==Key Investigator…'

2011-11-29T18:20:34Z

Created page with '__NOTOC__ <gallery> Image:PW-SLC2012.png|Projects List Image:PNSPipe.png|Principal Nested Spheres methodology </gallery> ==Key Investigator…'

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Image:PW-SLC2012.png|[[2012_Winter_Project_Week#Projects|Projects List]]
Image:PNSPipe.png|Principal Nested Spheres methodology
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==Key Investigators==
* UNC: Beatriz Paniagua, Josh Cates, Manasi Datar, Ross Whitaker, Martin Styner

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<h3>Objective</h3>
Compute normal discrepancies using Principal Nested Spheres (PNS) in entropy-based particle systems. In the proposed methods normals projected into the unit sphere, then we fit the great circle that approximates the data and the Frechet mean of that data, that lives in the great circle. Residuals are computed by how much the individual data differs from the Frechet mean. Our idea is use this normal information (residuals) as attribute data and incorporate it to the global optimization of the system. In this way, normals are not handled as a penalty.

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<h3>Approach, Plan</h3>

The code is up and running but still does not provide the desired results.
Meeting with the SCI crew to show preliminary data and troubleshoot possible misconceptions and errors, produced maybe during the integration of our PNS code with ShapeWorks. Revise battery of tests already computed by Jan 2012.
Decide next steps.

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<h3>Progress</h3>

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==Delivery Mechanism==

This work will be delivered to the NA-MIC Kit as a

#Extension to the current ShapeWorks pipeline

==References==

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 <h3>Progress</h3>
+A battery of tests was created for debugging purposes this week.
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 ==Key Investigators==
-* UNC: Beatriz Paniagua, Martin Styner
+* UNC: Beatriz Paniagua, Martin Styner, Steve Pizer
 * Utah SCI:  Josh Cates, Manasi Datar, Ross Whitaker