Resumen
The article focuses on blending reality and virtuality through computer graphics. Great science fiction often foreshadows great technical advances in communication technology. In the film "2001: A Space Odyssey," directed by Stanley Kubrick, the character Dr. Haywood Floyd calls home using a videophone, one of the earliest film appearances of videoconferencing. Little more than a decade later, in the director George Lucas's original movie "Star Wars," remote collaboration is accomplished using life-size virtual images superimposed on the real world. Today, desktop videoconferencing is widely available, while life-size virtual teleconferencing remains far-off fiction. In 1965, computer graphics pioneer Ivan Sutherland developed a display technology that made it possible to overlay virtual images on the real world. Attaching two head-worn miniature cathode ray tubes to a mechanical tracker, he created a see-through head-mounted display. Users could see a simple virtual wire-frame cube superimposed on the world, creating the first augmented reality interface.