Limits of Pattern Discrimination in Human Vision.
Final rept. Jan 83-Dec 85,
YALE UNIV NEW HAVEN CT DEPT OF OPHTHALMOLOGY AND VISUAL SCIENCE
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This investigation was focused on identification of various limits of human spatial discrimination, two-dimensional sampling properties of the retinal photoreceptor lattice, and the consequences for spatial vision. Highlights from this study are briefly listed. 1 Foveal Spatial Discriminations are hyperacuity tasks 2 The spatial-frequency discrimination function delta ff vs f is segmented 3 The discrimination segments can be related to retinal sampling 4 Scaling mechanisms apply to low resolution tasks 5 The photoreceptor lattice is a highly ordered hexagonal array 6 A hexagonal component exists in spatial discrimination 7 A new metric model of spatial vision is based on visual sampling.
- Anatomy and Physiology