Evaluation of the impact of multispectral image fusion on human performance in global scene processing
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Authors
White, Brice Landreau
Subjects
Image fusion
Preattentive processing
Visual perception
Preattentive processing
Visual perception
Advisors
Krebs, William K.
Date of Issue
1998-03-01
Date
March 1998
Publisher
Monterey, California. Naval Postgraduate School
Language
en_US
Abstract
An observer extracts local and global information from a natural scene to form a visual perception. Neisser and Treisman demonstrated that a natural scene contains different types of features, i.e., color, edges, luminance, and orientation to aid visual search. Infrared and visible sensors present nighttime images to an observer to aid target detection. These sensors present the observer an adequate representation of a nighttime scene, but sometimes fail to provide quality features for accurate visual perception. The purpose of this thesis is to investigate whether color features (combining an infrared and visible sensor image) improve visual scene comprehension compared to single band grayscale features during a signal detection task. Twenty three scenes were briefly presented in four different sensor formats (infrared, visible, fused monochrome, and fused color) to measure subjects global visual ability to detect whether a natural scene was right side up or upside down. Subjects are significantly more accurate at detecting scene orientation for an infrared and fused color scene compared to a fused monochrome and visible scene. Both the infrared and fused color sensor formats provide enough essential features to allow an observer to perceptually organize a complex nighttime scene.
Type
Thesis
Description
Series/Report No
Department
Organization
Naval Postgraduate School
Identifiers
NPS Report Number
Sponsors
Funder
Office of Naval Research
N0001497WR30078
N0001497WR30091
Format
xiv, 51 p.
Citation
Distribution Statement
Approved for public release; distribution is unlimited.
Rights
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.