Visual Detection of Low Contrast Bands in Speckled Imager
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.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 01, 1987
- Accession Number
- ADA200473
Entities
People
- Michael J. Wilmut