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

Mesopic spectral sensitivity functions based on visibility and recognition contrast thresholds.

Géza Várady1, Peter Bodrogi

  • 1Colour and Multimedia Laboratory, Department of Image Processing and Neurocomputing, Faculty of Information Technology, University of Veszprém, Hungary. varadygeza@gmail.com

Ophthalmic & Physiological Optics : the Journal of the British College of Ophthalmic Opticians (Optometrists)
|May 11, 2006
PubMed
Summary

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

Integrating MaxEnt and PLUS for Predictive Modeling of Mangrove Suitability and Land Use Impacts in Coastal Guangdong, China.

Ecology and evolution·2025
Same author

Numerical correlation between non-visual metrics and brightness metrics-implications for the evaluation of indoor white lighting systems in the photopic range.

Scientific reports·2023
Same author

Brightness perception under photopic conditions: experiments and modeling with contributions of S-cone and ipRGC.

Scientific reports·2023
Same author

Determination and Measurement of Melanopic Equivalent Daylight (D65) Illuminance (<i>mEDI</i>) in the Context of Smart and Integrative Lighting.

Sensors (Basel, Switzerland)·2023
Same author

Upper Gastrointestinal Bleeding from an Aberrant Left Subclavian Artery with Fatal Outcome.

Deutsches Arzteblatt international·2021
Same author

Preliminary measure for the characterization of the usefulness of light sources.

Optics express·2018

Human vision in the mesopic range is complex. Our study shows chromatic channels influence contrast sensitivity, challenging purely achromatic models of spectral sensitivity.

Area of Science:

  • Vision science
  • Photobiology
  • Visual perception

Background:

  • Human vision's function in the mesopic luminance range (dim to moderate light) remains poorly understood.
  • Crucial visual tasks are performed under mesopic conditions, necessitating further research.
  • Existing models may not fully capture the complexities of vision in this light range.

Purpose of the Study:

  • To investigate the spectral characteristics of human vision in the mesopic luminance range.
  • To determine the influence of chromatic channels on contrast sensitivity at these light levels.
  • To evaluate the efficacy of achromatic models in explaining mesopic spectral sensitivity.

Main Methods:

  • Conducted visual experiments to collect spectral data.
  • Measured detection visibility and recognition contrast sensitivity.

Related Experiment Videos

  • Fitted an achromatic model of spectral sensitivity to experimental data.

    • Main Results:

    • Experimental data revealed that chromatic channels significantly influence mesopic contrast sensitivity.
    • The fitted achromatic model did not fully account for the observed spectral sensitivity.
    • Residual chromatic components were identified and discussed.

    Conclusions:

    • Chromatic mechanisms play a vital role in human visual performance within the mesopic luminance range.
    • Current achromatic models are insufficient for fully describing mesopic spectral sensitivity.
    • Further research into the chromatic aspects of mesopic vision is warranted.