Sandia is a multiprogram laboratory operated by Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy’s National Nuclear Security Administration under contract DE-AC04-94AL85000. Eurographics 2013 Sifted Disks reducing the number of sample points retaining randomness improving quality Mohamed S. Ebeida Ahmed H. Mahmoud - Muhammad A. Awad - Mohammed A. Mohammed Scott A. Mitchell Alexander Rand - John D. Owens Alexandria University Sandia National Laboratories presenter = Scott 7!
Sifted Disks reducing the number of sample points retaining randomness improving quality. Mohamed S. Ebeida Ahmed H. Mahmoud - Muhammad A. Awad - Mohammed A. Mohammed Scott A. Mitchell Alexander Rand - John D. Owens. 7!. Alexandria University. Sandia National Laboratories. - PowerPoint PPT Presentation
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Sandia is a multiprogram laboratory operated by Sandia Corporation, a Lockheed Martin Company,for the United States Department of Energy’s National Nuclear Security Administration
under contract DE-AC04-94AL85000.
Eurographics 2013
Sifted Disksreducing the number of sample points
retaining randomness improving quality
Mohamed S. Ebeida Ahmed H. Mahmoud - Muhammad A. Awad - Mohammed A. Mohammed
Scott A. Mitchell Alexander Rand - John D. Owens
AlexandriaUniversity
SandiaNationalLaboratories
presenter = Scott
7!
Mohamed Ebeida’s (first author’s) kids, in full color
MeeraOmar
1. grayscale -> sizing function for
edge-detect
2. Stippling viaMaximal Poisson-DiskSampling
3. Sift points
Replace 2 for 1.
Respect originalsizing function.
Fewer pointsMinimal quality loss
Application
Universally lighter, but features still distinct
Overview• Input: point sample distribution
Poisson disks, Delaunay Refinement– Sizing function
• Adheres approximately• Observe: other distributions also respect sizing function,
might be smaller• Process
– Replace points 2-for-1– Adhere to sizing function