ABSTRACT
Tactile Brush is an algorithm that produces smooth, twodimensional
tactile moving strokes with varying frequency,
intensity, velocity and direction of motion. The design of the
algorithm is derived from the results of psychophysical investigations
of two tactile illusions – apparent tactile motion
and phantom sensations. Combined together they allow for
the design of high-density two-dimensional tactile displays
using sparse vibrotactile arrays. In a series of experiments
and evaluations we demonstrate that Tactile Brush is robust
and can reliably generate a wide variety of