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

Perceiving illumination inconsistencies in scenes.

Yuri Ostrovsky1, Patrick Cavanagh, Pawan Sinha

  • 1Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA.

Perception
|December 20, 2005
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

Pupil reflexes generate the peripheral drift illusion due to ON/OFF motion responses.

Vision research·2026
Same author

Steerable autoencoders underlying remapping, spatiotopy, and visual stability.

Current opinion in neurobiology·2026
Same author

The Role of Early Visual Experience in Cross-Signal Dependency Detection.

Developmental science·2026
Same author

Longitudinal Changes in Nystagmus Following Late Treatment for Congenital Blindness.

Investigative ophthalmology & visual science·2026
Same author

Frame effects across space and time.

Journal of vision·2026
Same author

The bookend effect.

i-Perception·2026

The human visual system struggles to detect inconsistent lighting in scenes without geometric regularity. This suggests our vision doesn't globally check illumination consistency.

Area of Science:

  • Visual perception
  • Computational neuroscience
  • Image processing

Background:

  • Human visual system excels at detecting statistical regularities.
  • Previous studies showed inconsistent illumination 'pops out' in regular displays.
  • Target luminance could be due to illumination or pigmentation inconsistencies.

Purpose of the Study:

  • Investigate visual system's ability to perceive illumination inconsistencies.
  • Determine if geometric regularity is crucial for detecting illumination anomalies.
  • Understand how the visual system encodes scene illumination distributions.

Main Methods:

  • Presented experimental stimuli with varying geometric regularities.
  • Used altered images of real scenes to test perception.

Related Experiment Videos

  • Varied interpretations of target luminance (illumination vs. pigmentation).

    • Main Results:

    • Visual system is insensitive to illumination inconsistencies without geometric regularity.
    • Difficulty in detecting targets solely cued by illumination or reflectance deviation.
    • Geometric regularity is essential for detecting illumination inconsistencies.

    Conclusions:

    • The visual system's ability to detect illumination inconsistencies fails without geometric cues.
    • Suggests the visual system does not verify global illumination consistency.
    • Highlights limitations in visual encoding of illumination distributions across scenes.