Results 1 to 10 of about 40,262 (119)

Evaluation of High Dynamic Range Imaging Methods for Luminance Measurements [PDF]

open access: yesJournal of Imaging
Imaging luminance measurement is increasingly used in lighting applications, but the limited dynamic range of camera sensors requires using high dynamic range (HDR) imaging methods for evaluating scenes with large luminance contrasts.
Lou Gevaux   +5 more
doaj   +2 more sources

Electroretinographic responses to luminance and cone-isolating white noise stimuli in macaques

open access: yesFrontiers in Neuroscience, 2022
Electroretinograms (ERGs) are mass potentials with a retinal origin that can be measured non-invasively. They can provide information about the physiology of the retina. Often, ERGs are measured to flashes that are highly unnatural stimuli.
Jan Kremers   +5 more
doaj   +1 more source

Photopic and Mesopic Contrast Sensitivity Function in the Presence of Glare and the Effect of Filters in Young Healthy Adults

open access: yesFrontiers in Psychology, 2021
Purpose: The aim of this study was to evaluate the effect of four different filters on contrast sensitivity under photopic and mesopic conditions with and without glare.Methods: A forced choice algorithm in a Bayesian psychophysical procedure was ...
Alberto Domínguez-Vicent   +3 more
doaj   +1 more source

Évaluation des caractéristiques fonctionnelles et rhéologiques des farines d'igname pilée instantanées (Dioscorea rotundata) obtenues à partir des tubercules des cultivars utilisés comme parents dans un programme de sélection au Bénin

open access: yesBiotechnologie, Agronomie, Société et Environnement, 2021
Assessment of the functional and rheological characteristics of instant pounded yam (Dioscorea rotundata) flour obtained from the tubers of cultivars used as parents in a breeding program in Benin Description of the subject. In West Africa, yam tubers
Jeannette Fakorede   +7 more
doaj   +1 more source

Classification and Segmentation of Longitudinal Road Marking Using Convolutional Neural Networks for Dynamic Retroreflection Estimation

open access: yesSensors, 2020
Road markings constitute one of the most important elements of the road. Moreover, they are managed according to specific standards, including a criterion for a luminous contrast, which can be referred to as retroreflection.
Chanjun Chun   +3 more
doaj   +1 more source

Mini-LEDs with Diffuse Reflection Cavity Arrays and Quantum Dot Film for Thin, Large-Area, High-Luminance Flat Light Source

open access: yesNanomaterials, 2021
Mini-light-emitting diodes (mini-LEDs) were combined with multiple three-dimensional (3D) diffuse reflection cavity arrays (DRCAs) to produce thin, large-area, high-brightness, flat light source modules.
Zhi Ting Ye   +3 more
doaj   +1 more source

The influence of modern headlamps on the recognition of portable traffic signs and warning triangles

open access: yesActa Polytechnica CTU Proceedings, 2023
This article focuses on the issue of portable traffic signs and their visibility using different light sources such as halogen, Xenon, or LED. The measured values of luminance and retroreflection for each object are used to distinguish the individual ...
Martin Rak   +4 more
doaj   +1 more source

Comparative Validation of Light Environment Simulation with Actual Measurements

open access: yesBuildings, 2023
The quality of indoor lighting significantly influences human well-being, emphasizing the need to integrate lighting planning into the architectural design process.
Juhyang Park, Kyungsun Lee, Kirim Kim
doaj   +1 more source

Monitor displays in radiology: Part 2

open access: yesIndian Journal of Radiology and Imaging, 2009
Monitor displays play an important role in modern radiology practice. Practicing radiologists need to be familiar with the various performance parameters of medical-grade displays.
IK Indrajit, BS Verma
doaj   +1 more source

“Blue Sky Effect”: Contextual Influences on Pupil Size During Naturalistic Visual Search

open access: yesFrontiers in Psychology, 2021
Pupil size is influenced by cognitive and non-cognitive factors. One of the strongest modulators of pupil size is scene luminance, which complicates studies of cognitive pupillometry in environments with complex patterns of visual stimulation.
Steven M. Thurman   +5 more
doaj   +1 more source

Home - About - Disclaimer - Privacy