Bimanual, mid-air multi-selection techniques in virtual reality

Data exploration in virtual reality (VR) often requires multi-selection of objects, which can vary in number, geometry, and density. Unlike device-based multi-selection, barehand techniques remain little explored. In this paper, we present an empirical comparison of four mid-air multi-selection techniques spanning dominant and non-dominant hand actions (n = 20). The symmetric-synchronous and high-tension asymmetric-asynchronous bimanual techniques were not significantly different in terms of efficiency, accuracy, and throughput for within-reach targets. Furthermore, there were no significant differences between low and high-tension asymmetric-asynchronous bimanual techniques. The symmetric-synchronous bimanual technique was most preferred.