VISUAL DETECTION OF LOW CONTRAST BANDS IN SPECKLED IMAGERY

Authors
  1. Wilmut, M.J.
Corporate Authors
Defence Research Establishment Pacific, Victoria BC (CAN)
Abstract
The human visual system performance in detecting low contrast bands in speckled imagery was examined. For exactly known signals it was found that approximately a 4.9-fold increase in signal amplitude was needed to achieve results comparable to the optimum matched filter detector. For signals of random orientation this factor is approximately 4.6. Due to the complex and largely unknown nature of the human visual system and the choices that must be made in preparing the images, caution must be exercised when applying these results.
Report Number
DREP-TM-87-7 — Technical Memorandum
Date of publication
15 Aug 1987
Number of Pages
21
DSTKIM No
88-04458
CANDIS No
57658
Format(s):
Hardcopy;Originator's fiche received by DSIS

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