Accession Number:

ADA188199

Title:

An Identification Threshold for Ship Silhouettes

Descriptive Note:

Technical rept.,

Corporate Author:

WEAPONS SYSTEMS RESEARCH LAB ADELAIDE (AUSTRALIA)

Personal Author(s):

• Furby, B. E.

Report Date:

1987-05-01

Pagination or Media Count:

34.0

Abstract:

Fourier descriptors are used to characterize the binary grey level silhouette images of ship targets. A grey level threshold technique is developed to determine the contour of the ship and comparisons are made between test shapes and library shapes using Euclidean distance as the match criterion. Binary grey level spot image comparisons are found to generate a suitable identification threshold which is successfully adapted to provide a ship silhouette identification threshold.

Descriptors:

• *IMAGE PROCESSING
• *SHIPS
• *SILHOUETTES
• *PATTERN RECOGNITION
• THRESHOLD EFFECTS
• SHAPE
• AUSTRALIA
• FOURIER ANALYSIS
• CONTOURS
• GRAY SCALE
• LIBRARIES
• OPTICAL IMAGES
• TARGETS
• IDENTIFICATION
• IMAGES

Subject Categories:

• Optical Detection and Detectors

Distribution Statement:

APPROVED FOR PUBLIC RELEASE