Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Hyperacuity, superresolution and gap resolution in human stereopsis.

S B Stevenson1, L K Cormack, C M Schor

  • 1School of Optometry, University of California, Berkeley 94720.

Vision Research
|January 1, 1989
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Binocular eye tracking with the Tracking Scanning Laser Ophthalmoscope.

Vision research·2015
Same author

Eye movements selective for spatial frequency and orientation during active visual search.

Vision research·2008
Same author

GAFFE: a gaze-attentive fixation finding engine.

IEEE transactions on image processing : a publication of the IEEE Signal Processing Society·2008
Same author

Vertical imbalance induced by prism-ballasted soft toric contact lenses fitted unilaterally.

Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians (Optometrists)·2008
Same author

Stereoscopic ranging by matching image modulations.

IEEE transactions on image processing : a publication of the IEEE Signal Processing Society·2008
Same author

Binocular contrast interactions in two-frame motion discrimination.

Perception & psychophysics·2007

This study investigated stereoscopic acuity using dynamic stereograms and found thresholds comparable to visual direction tasks. These findings help estimate the intrinsic noise in horizontal disparity processing.

Area of Science:

  • Vision science
  • Psychophysics
  • Computational neuroscience

Background:

  • Stereoscopic vision relies on processing retinal disparity to perceive depth.
  • Visual direction acuity studies provide a framework for understanding spatial judgments.
  • Quantifying stereoscopic capabilities is crucial for understanding visual system limitations.

Purpose of the Study:

  • To measure stereoscopic acuity across different depth perception tasks.
  • To compare stereoscopic performance with analogous visual direction tasks.
  • To estimate the intrinsic noise in horizontal disparity processing.

Main Methods:

  • Utilized dynamic, random-element stereograms with multiple surfaces in depth.
  • Employed a temporal two-alternative forced-choice (2AFC) procedure for all measurements.

Related Experiment Videos

  • Developed three tasks: Hyperacuity (depth offset), Superresolution (depth-axis thickening), and Gap Resolution (depth-axis gap).

    • Main Results:

    • Stereoscopic acuity thresholds were approximately 3 seconds of arc for hyperacuity.
    • Superresolution and gap resolution tasks yielded thresholds of 30 and 200 seconds of arc, respectively.
    • Performance on stereoscopic tasks closely mirrored that of analogous visual direction tasks.

    Conclusions:

    • Stereoscopic and visual direction judgments likely involve similar underlying neural mechanisms.
    • The measured thresholds provide a basis for estimating the intrinsic noise in horizontal disparity processing.
    • This research advances our understanding of the precision and limitations of human depth perception.