Accession Number : ADA289398

Title :   An Image Quality Analysis of ANVIS-6 Night Vision Goggles.

Descriptive Note : Master's thesis,

Corporate Author : AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH

Personal Author(s) : Abel, Derek H.

PDF Url : ADA289398

Report Date : DEC 1994

Pagination or Media Count : 76

Abstract : This study was undertaken in an effort to relate ANVIS-6 Night Vision Goggle image quality to user performance. The purpose was to determine which of five image quality metrics best related to performance tasks. The image quality metrics examined Modulation Transfer Function Area (MTFA), Integrated Contrast Sensitivity (ICS), Square Root Integral (SQRI), Resolution, and Signal-to-Noise Ratio (SNR). The performance tasks were detection and recognition of targets under various levels of moon illumination. The metric that best related to target detection was SNR. The SNR results are consistent with visual psychophysics and SNR effects. The metric that best related to target recognition was Resolution. The resolution results are consistent with the position that recognition performance improves for suprathreshold targets as resolving power increases.

Descriptors :   *NIGHT VISION DEVICES, *AVIATION GOGGLES, *IMAGE INTENSIFIERS(ELECTRONICS), CONTRAST, TRANSFER FUNCTIONS, TARGET RECOGNITION, SIGNAL TO NOISE RATIO, THESES, ILLUMINATION, POWER SUPPLIES, TARGET DETECTION, OPTICAL LENSES, SQUARE ROOTS, BINOCULARS, PHOTOCATHODES, PHOTOELECTRONS.

Subject Categories : Optical Detection and Detectors

Distribution Statement : APPROVED FOR PUBLIC RELEASE