Pen User Interactions Based on Pressure-Driven and Stroke-Driven Modes

Pressure and strokes are the much natural input modalities from pens. This study investigates the potentials of coupling pressure and strokes with pen-based interactions by discussing the possible strategies of using them. Pressure can be used as discrete or continuous manners, which are explored by two presented techniques: two-layer operation and Pressure Cursor. An experiment was conduct to determine the pressure spectrum that can be controlled easily. There are two ways to employ strokes to produce a scalar value, which plays a parameter control role in pen-based interactions. The two mechanisms of using strokes to produce a value are examined, which are further demonstrated by a series of applied scenarios.