Accession Number:

ADA170756

Title:

Limits of Pattern Discrimination in Human Vision.

Descriptive Note:

Final rept. Jan 83-Dec 85,

Corporate Author:

YALE UNIV NEW HAVEN CT DEPT OF OPHTHALMOLOGY AND VISUAL SCIENCE

Personal Author(s):

Report Date:

1986-02-03

Pagination or Media Count:

30.0

Abstract:

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.

Subject Categories:

  • Psychology
  • Anatomy and Physiology

Distribution Statement:

APPROVED FOR PUBLIC RELEASE