TY - GEN
T1 - Improving symbol salience in augmented reality
AU - Carmo, Maria Beatriz
AU - Cláudio, Ana Paula
AU - Ferreira, António
AU - Afonso, Ana Paula
AU - Simplício, Raúl
PY - 2013
Y1 - 2013
N2 - In augmented reality applications, users may experience difficulty in finding virtual symbols placed over images of the real world whenever the colour of the surrounding background becomes similar to the symbols' colour. We investigated a set of adaptations to make virtual symbols more salient from the background, while maintaining the original semantics, and conducted a study to evaluate user preferences about the adaptations, which revealed that adding a border to the symbols was favoured by the majority of the participants. Next came colour luminosity adjustment and changing the colour of the letters inside the symbol; however the latter was only preferred against symbols with no adaptation, that is, it was never chosen when competing with the other adaptations. Enlarging the symbol was the least selected adaptation, followed by having no adaptation at all. These results suggest using adaptations based on border addition and colour luminosity adjustments in the representation of virtual symbols for augmented reality.
AB - In augmented reality applications, users may experience difficulty in finding virtual symbols placed over images of the real world whenever the colour of the surrounding background becomes similar to the symbols' colour. We investigated a set of adaptations to make virtual symbols more salient from the background, while maintaining the original semantics, and conducted a study to evaluate user preferences about the adaptations, which revealed that adding a border to the symbols was favoured by the majority of the participants. Next came colour luminosity adjustment and changing the colour of the letters inside the symbol; however the latter was only preferred against symbols with no adaptation, that is, it was never chosen when competing with the other adaptations. Enlarging the symbol was the least selected adaptation, followed by having no adaptation at all. These results suggest using adaptations based on border addition and colour luminosity adjustments in the representation of virtual symbols for augmented reality.
KW - Augmented reality
KW - Symbol adaptation
KW - User study
UR - http://www.scopus.com/inward/record.url?scp=84878122641&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:84878122641
SN - 9789898565464
T3 - GRAPP 2013 IVAPP 2013 - Proceedings of the International Conference on Computer Graphics Theory and Applications and International Conference on Information Visualization Theory and Applications
SP - 367
EP - 372
BT - GRAPP 2013 IVAPP 2013 - Proceedings of the International Conference on Computer Graphics Theory and Applications and International Conference on Information Visualization Theory and Applications
T2 - International Conference on Computer Graphics Theory and Applications, GRAPP 2013 and International Conference on Information Visualization Theory and Applications, IVAPP 2013
Y2 - 21 February 2013 through 24 February 2013
ER -