Accurate visual measurement of three-dimensional moving patterns

Science  29 Jul 1983:
Vol. 221, Issue 4609, pp. 480-482
DOI: 10.1126/science.6867726


Human observers discriminated relative three-dimensional distances in simple patterns of motion parallax with an acuity similar to vernier acuity under comparable conditions. Accurate visual measures of three-dimensional distance can be derived from the structural invariance of patterns undergoing perspective transformations.