How many gestures can be used?
Our technology can recognize a large number of gestures, ranging from the simple to the complex. Most existing applications can be improved significantly by using just a few simple gestures. These can be as simple as single finger movement, say, to enter characters or move a pointer. Or, movement of multiple fingers to, for example, zoom and rotate an image, or to finger paint, where each fingertip can be drawing a different color. Some applications, such as video-entertainment, may have a wide range of gestures: simple ones to control, for example, viewing perspective, channel selection, and PIP positioning; moderately complex gestures to “move through” and interact with multiplayer game virtual areas.
