Fuzzy Logic Technique to Determine Search Time and Probability of Detection for Targets of Interest in Background Scenes
Abstract
A method of determining the visibility of a target in a background uses search time as the output. A set of images of the target in the background is made, and selected input variables in each image are measured. The input variables relate to target size, target juxtaposition relative to the viewer's location, luminance of the target and luminance of the background scene. One version of our method additionally uses wavelet edge points as an input variable. Each input variable, as well as the output variable, has several applicable membership functions by which membership values are assigned to the variables. Choosing membership functions for variables is done by fuzzy rules. Applying the fuzzy rules and membership functions produces multiple values for the output variable. These values are defuzzified to obtain a crisp end result. This result can disqualify proposed target designs or to help select among several good designs of the target.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 23, 2002
- Accession Number
- ADD020335
Entities
People
- Euijung Sohn
- Harpreet Singh
- Thomas J. Meitzler
Organizations
- Tank-automotive and Armaments Command