Baloup, Marc and Pietrzak, Thomas and Casiez, Géry - Improving Raycasting using Proximity Selection and Filtering

jips:5933 - Journal d'Interaction Personne-Système, December 3, 2019, Volume 8, Issue 1, Special issue : the best of IHM'2018
Improving Raycasting using Proximity Selection and Filtering

Authors: Baloup, Marc and Pietrzak, Thomas and Casiez, Géry

Raycasting is the most common target pointing technique in virtual reality environments. However, performance on small and distant targets is impacted by the accuracy of the pointing device and the user's motor skills. Current pointing facilitation techniques are currently only applied in the context of the virtual hand, i.e. for targets within reach. We propose enhancements to Raycasting : filtering the ray, and adding a controllable cursor on the ray to select the nearest target. We describe a series of studies for the design of the visual feedforward, filtering technique, as well as a comparative study between different 3D pointing techniques. Our results show that highlighting the nearest target is one of the most efficient visual feedforward technique. We also show that filtering the ray reduces error rate in a drastic way. Finally we show the benefits of RayCursor compared to Raycasting and another technique from the literature.


Source : oai:HAL:hal-02158113v2
Volume: Volume 8, Issue 1, Special issue : the best of IHM'2018
Section: Research articles
Published on: December 3, 2019
Submitted on: December 3, 2019
Keywords: Virtual reality,Pointing technique,Visual feedforward,Retour visuel,Réalité virtuelle,Technique de pointage,[INFO.INFO-HC]Computer Science [cs]/Human-Computer Interaction [cs.HC]


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