Accession Number:

ADA214858

Title:

A Picture-Descriptor Extractions Program Using Ship Silhouettes

Descriptive Note:

Master's thesis

Corporate Author:

NAVAL POSTGRADUATE SCHOOL MONTEREY CA

Personal Author(s):

Report Date:

1989-06-01

Pagination or Media Count:

67.0

Abstract:

This research examines the practicality of automatically identifying the features of the major structures of ship silhouettes using rule-based extraction and identification techniques. The process was broken into three phases a finding the silhouette boundary, b locating the bumps apparent superstructures on the boundary, and c describing the bump features qualitatively using a multidimensional-feature-space classification. The program for the first phase is written in C while the programs in the other two phases are written in MPROLOG and run on a Motorola 68020-based workstation. The programs accurately identified 78 of all bumps examined on six ships. The lists of bump descriptions showed the key differences between two different ships of the same ship-class, indicating future programs could identify ships using the output from the programs of this thesis. Artificial intelligence, Feature extraction, Boundary tracing, Ship recognition, Prolog, Silhouette identification. jes

Subject Categories:

  • Cybernetics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE