Accession Number:

ADA370519

Title:

Finding and Matching Topographic Features in 3-D Object Meshes

Descriptive Note:

Doctoral thesis,

Corporate Author:

AIR FORCE INST OF TECH WRIGHT-PATTERSONAFB OH

Personal Author(s):

• Neal, Pamela J.

Report Date:

1999-10-22

Pagination or Media Count:

151.0

Abstract:

This dissertation defines a spatial symbolic model that can be used to describe classes of 3-D objects anatomical and man-made and a method for finding correspondences between the features of the symbolic models and point sets of 3-D mesh data. An abstract symbolic model is used to describe spatial object classes in terms of parts, boundaries, and spatial associations. A working model is a mechanism to link the symbolic model to geometric information found in a sensed instance of the class, represented by a 3D mesh data set. Matching is performed in a three-step procedure that first finds working sets of points in the mesh, then fits constructed features to these sets, and finally selects a subset of these constructed features that best correspond to the features of the working model.

Descriptors:

• *ROBOTICS
• *THREE DIMENSIONAL
• *DATA ACQUISITION
• SPATIAL DISTRIBUTION
• PASSIVE SYSTEMS
• THESES
• ABSTRACTS
• TOPOGRAPHY
• MANMADE
• ANATOMY
• RANGE FINDING
• MATCHING
• SYMBOLIC PROGRAMMING
• PRODUCTION MODELS

Subject Categories:

• Information Science
• Theoretical Mathematics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE