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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

An image quality analysis of ANVIS-6 night vision goggles /

Abel, Derek H., January 1994 (has links)
Thesis (M.S.)--Virginia Polytechnic Institute and State University, 1994. / Vita. Abstract. Includes bibliographical references (leaves 53-57). Also available via the Internet.
2

Effects of target size, luminance contrast, and illumination on visual target detection and recognition with AN/AVS-6 goggles /

Pierce, Eric Christopher, January 1994 (has links)
Thesis (M.S.)--Virginia Polytechnic Institute and State University, 1994. / Vita. Abstract. Includes bibliographical references (leaves 49-51). Also available via the Internet.
3

Generation of mid-wave infrared signature using microradiating devices for vehicle mounted identification friend or foe applications

Rose, Eric Q. January 2009 (has links) (PDF)
Thesis (M.S. in Physics)--Naval Postgraduate School, June 2009. / Thesis Advisor(s): Haegel, Nancy. "June 2009." Description based on title screen as viewed on 13 July 2009. Author(s) subject terms: Anti-fratricide, thermal emitter, vehicle mounted identification friend or foe, night vision device (nvd), thermal imaging. Includes bibliographical references (p. 95). Also available in print.
4

MERIT FUNCTION FOR BIOCULAR MAGNIFIERS.

Wickholm, David Randall. January 1985 (has links)
No description available.
5

Evaluation of Night Vision Devices for image fusion studies /

Cheng, Wee Kiang. January 2004 (has links) (PDF)
Thesis (M.S. in Combat Systems Technology)--Naval Postgraduate School, Dec. 2004. / Thesis Advisor(s): Alfred W Cooper, Gamani Karunasiri. Includes bibliographical references (p. 119-120). Also available online.
6

Visual simulation of night vision goggles in a chromakeyed, augmented, virtual environment

Beilstein, Del L. 06 1900 (has links)
Approved for public release; distribution is unlimited. / This thesis done in cooperation with the MOVES Institute. / Despite data indicating more human error accidents occur during NVG flight than in any other flight mode, there are very few simulation tools available to aviators at the unit level that aid them in learning or practicing NVG flight tasks. This thesis examines the potential for a Chromakeyed Augmented Virtual Environment (ChrAVE), consisting only of Commercial-Off-The- Shelf (COTS) hardware, to be used as an NVG flight training platform. It also examines whether or not physically-based light calculations are necessary to produce adequate visual representation of simulated NVG imagery. Twelve subjects performed simulated low-level NVG flight navigation tasks in the ChrAVE. Treatments included questionnaires, vision tests, variation of the physics-based component of the NVG imagery, and performance of an evaluation task that compares standard thresholds between day and NVG navigation. Analysis of data and subject feedback indicate that the ChrAVE has potential as an NVG flight training device, and that physically-based calculations may not be necessary to achieve simulated NVG imagery that is adequate for training. The data also supports the existence of a substantial difference in the subjective evaluation standard between navigation performances based on flight condition. / Captain, United States Army
7

Determination of human visual capabilities in the identification of the color of highway signs under a combination of vehicle headlamp and high intensity discharge light sources

Saremi, Ahmad Reza 02 August 1990 (has links)
A standardized color code is used to aid the driver in the prompt recognition of highway signs. At night, these signs are illuminated by various light sources including the headlights and other fixed light sources. These light sources may distort the appearance of the colors of the signs at night. The first objective of this study was to provide information about human capabilities with respect to the recognition of different colors under daytime and nighttime lighting. The second objective was to examine the effect of changing the specifications for highway colors from the Federal Highway Administration (FHWA) standards to the American National Standards (ANSI) safety color specifications. A laboratory experiment was conducted in which subjects named the perceived colors of retroreflective signs viewed under daytime and nighttime lighting. Forty subjects from four different age groups representing the driving population participated in the study. Three color samples (red, orange, and yellow) in three different grades (engineering grade, high intensity grade, and diamond grade), and two different color specifications (FHWA and ANSI) were used. Four different fixed light sources (clear mercury, coated mercury, coated metal halide, and high pressure sodium) were used for illuminating the signs. For the nighttime condition, two headlights were used (metal halide and tungsten halogen). Daytime lighting was simulated using a fluorescent D-65 light source. Response times as well as correct responses for naming the colors were collected for each subject. Significant differences were found for nighttime versus daytime viewing of the signing materials. In general, for nighttime viewing, red and orange colors were identified faster than yellow color samples. In most cases, FHWA colors were identified significantly more accurately and faster than the ANSI colors. The coated metal halide headlight performed better than the other fixed light sources. There was no significant difference found between the tungsten halogen and the metal halide headlights. / Graduation date: 1991
8

Digital enhancement of night vision and thermal images /

Teo, Chek Koon. January 2003 (has links) (PDF)
Thesis (M.S. in Combat Systems Technology)--Naval Postgraduate School, December 2003. / Thesis advisor(s): Monique P. Fargues, Alfred W. Cooper. Includes bibliographical references (p. 75-76). Also available online.
9

Visual simulation of night vision goggles in a chromakeyed, augmented, virtual environment /

Beilstein, Del L. January 2003 (has links) (PDF)
Thesis (M.S. in Modeling, Virtual Environments, and Simulation)--Naval Postgraduate School, June 2003. / Thesis advisor(s): Rudolph P. Darken, Joseph A. Sullivan. Includes bibliographical references (p. 77). Also available online.
10

An analytical investigation into the visibility of pavement marking lines during night time in curves

Senthilnathan, Vatihianathan. January 1999 (has links)
Thesis (M.S.)--Ohio University, March, 1999. / Title from PDF t.p.

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