The Green Pen

The Pen

The pen is dead. Long live the pen.

Segmentation of Pen Strokes Using Pen Speed

We present a technique for segmenting pen strokes into lines and arcs. The technique uses pen speed information to help infer the segmentation intended by the drawer. To begin, a set of candidate segment points is identified. This set includes speed minima below a threshold computed from the average pen speed. It also includes curvature maxima at which the pen speed is again below a threshold. ...

An insight into the freedom of using a pen: Pen-based system and pen-and-paper

In recent years the studies of freehand sketch began to peek into cognitive study area from the design media aspect. The development of pen-based system attempted to use pen as an input device, allowing sketches to be freely drawn in computers environment. The importance of the freehand sketch is in its ability to freely represent various drawing projections using ambiguous sketches. However, a...

Characterizing The Natural Pen Stroke

We present initial results of a study on the effects of biomechanical influences in the human hand on the natural pen stroke. A geometric model suggests that a user interface, curved to match the natural motion of the hand, would be more appropriate than a user interface aligned with the horizontal and vertical boundaries of the display device. While our results confirm the presence of a curve ...