Title
Effects of Head Rotation and Depth Enhancement in Virtual Reality User-Scene Interaction
Abstract
Immersive experiences with virtual reality systems are normally connected to user-scene interaction. The immersive system interprets movement commands and updates its output accordingly. When operating on PC and console games, interaction is typically triggered by hand-controllers’ buttons, including joysticks. When wearing a head-mounted display (HMD), user’s head-position can also prompt interaction, e.g. viewpoint changes. This is a major difference between operating on a HMD and on a desktop monitor. Changing observation viewpoint through head-rotation contributes to the user’s immersion in the observed world, as it comes naturally. However, this may lead to visual disturbances and loss of concentration in some applications, hindering tasks like scene overviewing, especially in complex dynamic environments. The latter would call for joystick use instead. This paper assesses the use of head-rotation and controller joystick to generate differences in observation viewpoint. Our application context is a three-dimensional dynamic scene where users must identify and discover threats represented by unmanned aerial vehicles (UAVs) entering a protected area. Two distinct levels of depth enhancements are provided using stereoscopic-3D visualization (S3D). Our focus is to see the effects of the two interaction modalities (head-rotation and joystick) and two S3D levels. We evaluate user performance in terms of mission success and action timing, and assess how they relate to learning and memorization. Eye movements are also analyzed to help understand user interaction patterns and focus of attention.
Year
DOI
Venue
2022
10.1007/978-3-031-15546-8_12
Extended Reality
Keywords
DocType
ISSN
Virtual Reality, Head mounted display, Head rotation, 3D visualization, Command and control, Eye-tracking
Conference
0302-9743
Citations 
PageRank 
References 
0
0.34
0
Authors
6
Name
Order
Citations
PageRank
Livatino S.100.34
Zocco A.200.34
Iqbal Y.300.34
Gainley P.400.34
Morana G.500.34
Farinella G. M.600.34