Results 11 to 20 of about 2,583,441 (289)

Designing a new test for contrast sensitivity function measurement with iPad

Journal of Optometry, 2015
Purpose: To introduce a new application (ClinicCSF) to measure Contrast Sensitivity Function (CSF) with tablet devices, and to compare it against the Functional Acuity Contrast Test (FACT).
Manuel Rodríguez-Vallejo, Laura Remón, Juan A. Monsoriu, Walter D. Furlan   +3 more
doaj   +3 more sources

Contrast sensitivity function with soft contact lens wear. [PDF]

J Optom, 2020
To compare contrast sensitivity function (CSF) with soft contact lens (SCL) and spectacles wear. To investigate the effect of a three-month period of SCL wear on CSF.Forty-seven myopic subjects with no history of contact lens (CL) wear were included in this longitudinal prospective study.
Sapkota K, Franco S, Lira M.
europepmc   +4 more sources

Can Psychophysics Be Fun? Exploring the Feasibility of a Gamified Contrast Sensitivity Function Measure in Amblyopic Children Aged 4–9 Years [PDF]

Frontiers in Medicine, 2020
Routine assessments of the Contrast Sensitivity Function [CSF] could be useful for the diagnosis and monitoring of amblyopia. However, current CSF measures are not clinically practical, as they are too slow, too boring, and too uncomfortable to sustain a
Doaa Elfadaly, Doaa Elfadaly, Sahar Torky Abdelrazik, Peter B. M. Thomas, Peter B. M. Thomas, Tessa M. Dekker, Annegret Dahlmann-Noor, Annegret Dahlmann-Noor, Pete R. Jones, Pete R. Jones, Pete R. Jones   +10 more
doaj   +2 more sources

Predicting contrast sensitivity functions with digital twins

Scientific Reports
We developed and validated digital twins (DTs) for contrast sensitivity function (CSF) across 12 prediction tasks using a data-driven, generative model approach based on a hierarchical Bayesian model (HBM).
Yukai Zhao, Luis Andres Lesmes, Michael Dorr, Zhong-Lin Lu   +3 more
doaj   +3 more sources

Measuring the Contrast Sensitivity Function in Non-Neovascular and Neovascular Age-Related Macular Degeneration: The Quantitative Contrast Sensitivity Function Test. [PDF]

J Clin Med, 2021
Vingopoulos F, Wai KM, Katz R, Vavvas DG, Kim LA, Miller JB.   +5 more
europepmc   +2 more sources

Contrast sensitivity functions in autoencoders

Journal of Vision, 2022
Three decades ago, Atick et al. suggested that human frequency sensitivity may emerge from the enhancement required for a more efficient analysis of retinal images. Here we reassess the relevance of low-level vision tasks in the explanation of the Contrast Sensitivity Functions (CSFs) in light of (1) the current trend of using artificial neural ...
Li, Qiang, Gomez-Villa, Alex, Bertalmío, Marcelo, Malo, Jesús   +3 more
openaire   +6 more sources

Noise provides new insights on contrast sensitivity function. [PDF]

PLoS ONE, 2014
Sensitivity to luminance difference, or contrast sensitivity, is critical for animals to survive in and interact with the external world. The contrast sensitivity function (CSF), which measures visual sensitivity to spatial patterns over a wide range of ...
Ge Chen, Fang Hou, Fang-Fang Yan, Pan Zhang, Jie Xi, Yifeng Zhou, Zhong-Lin Lu, Chang-Bing Huang   +7 more
doaj   +1 more source

The effect of acupuncture at the Taiyang acupoint on visual function and EEG microstates in myopia

Frontiers in Integrative Neuroscience, 2023
ObjectiveAcupuncture has certain effects to improve myopia visual function, but its neural mechanism is unclear. In this study, we acupunctured at the right Taiyang acupoint of myopic patients to analyze the effects of acupuncture on visual function and ...
Kangna Su, Kangna Su, Kangna Su, Lihan Wang, Lihan Wang, Zhongqing Wang, Zhongqing Wang, Jiayao Ma, Jiayao Ma, Chao Zhang, Hongsheng Bi, Hongsheng Bi, Hongsheng Bi, Jianfeng Wu, Jianfeng Wu, Jianfeng Wu   +15 more
doaj   +1 more source

Contrast Enhancement Using Sensitivity Model-Based Sigmoid Function

IEEE Access, 2019
For indirect contrast enhancement, researchers have proposed various transformation functions based on histogram equalization and gamma correction.
Seung Park, Yong-Goo Shin, Sung-Jea Ko
doaj   +1 more source

Spatial contrast sensitivity in adolescents with autism spectrum disorders [PDF]

, 2010
Adolescents with autism spectrum disorders (ASD) and typically developing (TD) controls underwent a rigorous psychophysical assessment that measured contrast sensitivity to seven spatial frequencies (0.5-20 cycles/degree). A contrast sensitivity function
A Bertone, A Lahaie, AB Watson, APA, B Jemel, BS Abrahams, C Deruelle, C Deruelle, C Jarrold, C Kemner, C Lord, DH Kelly, E Ashwin, E Milne, E Milne, E Milne, E Pellicano, EJ Gumbel, Elizabeth Milne, F Faul, F Happé, F Happé, H Tager-Flusberg, HC Hughes, Hwan Cui Koh, J Gwiazda, J Katsyri, JA Movshon, JC Badcock, JE Scharre, JG Robson, JN Constantino, Karen Dobkins, KL Gunther, KR Dobkins, L Beglinger, L Mottron, M Behrmann, M Behrmann, M Rutter, MA Boeschoten, MA Boeschoten, MA Boeschoten, MJ Brosnan, MM Taylor, MV Jonge de, NL Johnson, O Tadevosyan-Leyfer, R Davis, S Risi, V Virsu, WH Ridder, XQ Liu   +52 more
core   +1 more source