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Implicit Level Set Based Software for Generating Geometrically and Topologically Accurate Urban Terrain Models Using Implicit Methods

Award Information
Agency: Department of Defense
Branch: Army
Contract: W911NF-06-C-0143
Agency Tracking Number: A064-011-0059
Amount: $100,000.00
Phase: Phase I
Program: STTR
Solicitation Topic Code: A06-T011
Solicitation Number: N/A
Solicitation Year: 2006
Award Year: 2006
Award Start Date (Proposal Award Date): 2006-08-09
Award End Date (Contract End Date): 2007-02-05
Small Business Information
1058 Embury Street
Pacific Palisades, CA 90272
United States
DUNS: 061977034
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 Susan Chen
 (310) 573-9339
Business Contact
 Stanley Osher
Title: President/CEO
Phone: (310) 573-9339
Research Institution
 Ty Lane
Office of Sponsored Projects
Austin, TX 78713
United States

 (512) 471-6234
 Nonprofit College or University

We propose a new method developed by our employees and collaborators for the digital representation of real world objects. This will result in an implicit surface urban terrain model that interpolates raw point cloud data. The method can handle complex topologies and geometries easily. Topology changes pose no difficulties. The key idea involves shrink wrapping an implicit surface around data points using the level set method. No assumptions about connectivity of these points is needed. New multiresolution techniques for speeding up the algorithm, reducing storage requirements, including information about the normals to the surface, weighting points according to their statistical significance, removing outliers, tensor voting, using dynamic visibility based interpolation, ENO interpolation and Level Set System's new, proprietary level set based compression will be developed and used here. New visual metrics involving Hausdorff distance for implicit surfaces will measure the accuracy and reliability of the resulting software package.

* Information listed above is at the time of submission. *

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