Real-Time Non-Intrusive Assessment of Viewing Distance During Computer Use
Visualitza/Obre
10.1097/OPX.0000000000000995
Inclou dades d'ús des de 2022
Cita com:
hdl:2117/97579
Tipus de documentArticle
Data publicació2016-10-22
Condicions d'accésAccés obert
Llevat que s'hi indiqui el contrari, els
continguts d'aquesta obra estan subjectes a la llicència de Creative Commons
:
Reconeixement-NoComercial-SenseObraDerivada 3.0 Espanya
Abstract
Purpose: To develop and test the sensitivity of an ultrasound-based sensor to assess the viewing distance of visual display terminals operators in real-time conditions.
Methods: A modified ultrasound sensor was attached to a computer display to assess viewing distance in real time. Sensor functionality was tested on a sample of 20 healthy participants while they conducted four 10-minute randomly presented typical computer tasks (a match-three puzzle game, a video documentary, a task requiring participants to complete a series of sentences, and a predefined internet search).
Results: The ultrasound sensor offered good measurement repeatability. Game, text completion, and web search tasks were conducted at shorter viewing distances (54.4 cm [95% CI 51.3-57.5 cm], 54.5 cm [95% CI 51.1-58.0 cm], and 54.5 cm [95% CI 51.4-57.7 cm], respectively) than the video task (62.3 cm [95% CI 58.9-65.7 cm]). Statistically significant differences were found between the video task and the other three tasks (all p < 0.05). Range of viewing distances (from 22 to 27 cm) was similar for all tasks (F = 0.996; p = 0.413).
Conclusions: Real-time assessment of the viewing distance of computer users with a non-intrusive ultrasonic device disclosed a task-dependent pattern.
(C) 2016 American Academy of Optometry
CitacióArgilés , M., Cardona, G., Pérez-Cabré, E., Perez, R., Morcego, B., Gispets, J. Real-Time Non-Intrusive Assessment of Viewing Distance During Computer Use. "Optometry and vision science", 22 Octubre 2016, vol. 93, núm. 12, p. 1525-1531.
ISSN1040-5488
Col·leccions
- GOAPI - Grup d'Òptica Aplicada i Processament d'Imatge - Articles de revista [110]
- Departament d'Enginyeria de Sistemes, Automàtica i Informàtica Industrial - Articles de revista [1.390]
- GRCUV - Grup de Recerca del Centre Universitari de la Visió - Articles de revista [72]
- SAC - Sistemes Avançats de Control - Articles de revista [507]
- Departament d'Òptica i Optometria - Articles de revista [446]
Fitxers | Descripció | Mida | Format | Visualitza |
---|---|---|---|---|
Manuscript_OVS_postcript.pdf | 532,8Kb | Visualitza/Obre |