A gaze-based interaction method for large-scale and large-space disaster scenes within mobile virtual reality

A three-dimensional (3D) visualization of disaster scenes based on mobile virtual reality (VR) can improve the application scenarios and emergency service capabilities of traditional 3D visualization of disaster scenes. Because a smartphone needs to be placed into a mobile head-mounted display, conventional touch scene interaction cannot be used by mobile VR, and the user's gaze usually serves as the default scene interaction method. However, the existing gaze-based interaction methods for mobile VR scenes are passive scene interaction methods and cannot meet the basic interaction requirement for actively roaming through and exploring large-scale and large-space disaster scenes. Therefore, this study focuses on gaze-based mobile VR interactions to satisfy the various interaction requirements of large-scale and large-space disaster scenes. First, a dynamic user interface (UI) generation method for gaze interaction in large-scale and large-space disaster scenes is proposed to solve the problem of the active exploration of mobile VR disaster scenes. Second, disaster scene exploration and disaster information query methods based on a dynamic UI and gaze are proposed. Finally, using a flood disaster as an example, a prototype system and associated experiments are discussed. As indicated by the experimental results, the gaze-based mobile VR interaction methods addressed in this study can effectively support users in actively roaming through and exploring large-scale and large-space disaster scenes, disaster simulation analysis, and the interactive querying of disaster information within mobile VR, making the effective interaction of mobile VR disaster scenes possible.

Automated summary

A three-dimensional visualization of disaster scenes based on mobile virtual reality can improve the application scenarios and emergency service capabilities. However, the existing gaze-based mobile VR interaction methods cannot meet the various interaction requirements of large-scale and large-space disaster scenes. This study proposes a gaze-based mobile VR interaction method to satisfy the exploration and information query needs of large-scale and large-space disaster scenes.