NUICursorTools: cursor behaviors for indirect-pointing

Designing touchless control for six degrees of freedom (6DOF) input devices (e.g., Kinect®) is fundamental for natural user interfaces, but it raises unsolved challenges. These challenges stem from inherent limitations of human motor control in mid-air, and include undesirable jitter from continuous hand tremor, arm fatigue when traversing very large displays, and limited motor control on pixel-accurate selections. To address these problems, we contribute NUICursorTools, a nimble and flexible toolkit that provides a device-agnostic, driver- and middleware-agnostic solution that eliminates touchless cursor jitter, allows optimization of control-display gain and pointer acceleration for touchless control, and enables design of custom complex cursor behaviors. Due to its high-level, device-independent design, NUICursorTools has broad applicability for current and next- generation interaction contexts in which an onscreen cursor is indirectly controlled by any input device.