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Object Recreation from Facet Representation to IGES and Primitive…

Award Information

Agency:
Department of Defense
Branch:
Missile Defense Agency
Award ID:
78347
Program Year/Program:
2008 / SBIR
Agency Tracking Number:
053-1544
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
Stellar Science Ltd Co
6565 Americas Parkway NE, Suite 725 Albuquerque, NM -
View profile »
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 2
Fiscal Year: 2008
Title: Object Recreation from Facet Representation to IGES and Primitive Representations
Agency / Branch: DOD / MDA
Contract: HQ0147-08-C-7941
Award Amount: $748,841.00
 

Abstract:

Accurate geometric and mathematical modeling of three-dimensional object shapes is a critical component of a variety of applications, ranging from design and manufacturing, to modeling and simulation. The models used in these applications may be created using interactive Computer Aided Design (CAD) tools, by hand-editing geometry configuration files, as the outputs of automated systems such as laser ranging scanners, computer-vision-based shape-from-motion techniques, or optimized design codes. While some model formats allow higher-level representations, combining geometric primitives or bounded surfaces to represent the final 3D shape, many model sources or existing model collections contain only lower-level representations such as a facets or meshes. While conversion from higher-level to lower-level representations is common using facetization or meshing techniques, this research effort focuses on the inverse problem of generating higher-order shape representations from faceted models. This requires recognizing groups of facets that collectively represent higher-order surfaces such as cylinders, spheres, cones, and lofted curved surfaces; mathematically fitting surface equations to those facets to determine the characteristic shape parameters; and exporting the high-order representations to formats that modeling, simulation, and analysis tools can process. These techniques will enable smooth surface CAD models to be created automatically from roughly triangulated input geometries.

Principal Investigator:

Harry Voorhees
Senior Research Scientist
9784755279
hlv@stellarscience.com

Business Contact:

Conrad J. Poelman
Owner
5054532713
cpdodsbir@stellarscience.com
Small Business Information at Submission:

STELLAR SCIENCE LTD.CO
401 Serenity Ct SE Albuquerque, NM 87123

EIN/Tax ID: 850462062
DUNS: N/A
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No