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Positional Acuity without Monocular Cues
- Source :
- Perception. 15:157-162
- Publication Year :
- 1986
- Publisher :
- SAGE Publications, 1986.
-
Abstract
- The accuracy with which human observers can determine the spatial location of a shape boundary was measured by vernier alignment. The vernier targets were presented as random-dot stereograms, with varying amounts of camouflage in the monocular image. Camouflage decreased vernier acuity, but when the camouflage was broken by stereoscopic disparity, acuity was improved. In the limiting case when the shape boundaries were defined by disparity information alone, vernier thresholds (75% correct, binary forced-choice) were in the region of 40 s visual angle. This is poor acuity in comparison to vernier thresholds with monocular contour, but if the limited resolution acuity for stereopsis is taken into account, cyclopean and monocular positional acuities can be considered quite similar in relation to their respective resolution limits.
- Subjects :
- Male
Visual acuity
Computer science
Visual Acuity
Experimental and Cognitive Psychology
050105 experimental psychology
law.invention
03 medical and health sciences
0302 clinical medicine
Optics
Artificial Intelligence
law
medicine
Humans
0501 psychology and cognitive sciences
Computer vision
Ocular Physiological Phenomena
Monocular
business.industry
Vernier scale
05 social sciences
Vernier acuity
Sensory Systems
Ophthalmology
Stereopsis
Space Perception
Artificial intelligence
Cues
Visual angle
medicine.symptom
business
Depth perception
Monocular vision
030217 neurology & neurosurgery
Subjects
Details
- ISSN :
- 14684233 and 03010066
- Volume :
- 15
- Database :
- OpenAIRE
- Journal :
- Perception
- Accession number :
- edsair.doi.dedup.....ccc7c9b993a06f4b6d13bb58a3babd0d