  Traditional relative pointing devices such as mice and trackpads are
unsuitable for pointing at distant displays, because they encumber the users by
requiring either a flat surface to operate on or being held by two hands. Past
research has examined many new pointing methods, but few could surpass the
speed and accuracy of mice and trackpads. This paper introduces a new pointing
system that is developed based on HTC Vive, a relatively low-cost virtual
reality system, and proposes two methods of combining absolute and relative
pointing. The proposed methods were compared against single-mode pointing
methods (i.e., pure absolute pointing and pure relative pointing) in a Fitts'
law study. The results show that with only a short period of practice, one
hybrid pointing technique enabled faster and more accurate pointing than both
single-mode pointing techniques, which included a trackpad.
