| The use of commodity laser pointers as a viable input mechanism for interacting with large displays is hampered by the lack of appropriate selection mechanisms that can replace the physical button found on other input devices. We explore the design space of possible gestural selection techniques that could replace explicit button presses. We then present a controlled experiment that compares two of the most promising gestural techniques with existing approaches. The results indicate that simple gestural selection methods outperform the previously standard dwell technique, and approach the performance of explicit button presses. Implementation issues are discussed, and gesture recognition algorithms are presented. |
