An Arduino-Powered Device for the Study of White Perception beyond the Visual Chromatic Critical Flicker Fusion Frequency

Arduino microcontrollers are used for a wide range of technological and biomedical applications, such as image classification, computer vision, brain–computer interaction and vision experiments. Here, we present a new cost-effective mini-device based on RGB LED flicker stimulation for the assessment...

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Veröffentlicht in:Journal of imaging Jg. 10; H. 7; S. 163
1. Verfasser: Ávila, Francisco J.
Format: Journal Article
Sprache:Englisch
Veröffentlicht: Switzerland MDPI AG 10.07.2024
Schlagworte:
Adaptation
Arduino
Biomedical materials
color vision
Computer vision
critical flicker frequency fusion
Critical flicker fusion
high-order aberrations
Image classification
Optics
photo-stress recovery time
Photoreceptors
Photostresses
Recovery time
Sensory stimulation
Statistical correlation
Temporal resolution
temporal vision
Visual impairment
Visual perception
Visual stimuli
Wave fronts
high-order aberrations
critical flicker frequency fusion
temporal vision
Arduino
color vision
photo-stress recovery time
ISSN:2313-433X, 2313-433X
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Zusammenfassung:Arduino microcontrollers are used for a wide range of technological and biomedical applications, such as image classification, computer vision, brain–computer interaction and vision experiments. Here, we present a new cost-effective mini-device based on RGB LED flicker stimulation for the assessment of the chromatic temporal resolution of the visual function based on the concept of critical flicker fusion frequency (CFF). The assembly of the device and its testing in thirty young subjects demonstrate the steady white visual perception of a trichromatic flicker stimulus (mixture of red, green and blue stimuli) beyond the CFF. Macular function as measured by photo-stress recovery time (PRT) was found to be independent of the CFF measurements for red, green and blue lights. However, a statistical correlation was found between the contrast modulation for CFF for red and green stimuli and PRT. Finally, wavefront measurements demonstrate that high-order aberrations improve the temporal resolution of the visual function.
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ISSN:2313-433X
2313-433X
DOI:10.3390/jimaging10070163