Title :
NALP: Navigating Assistant for Large Display Presentation Using Laser Pointer
Author :
Zhang, Liang ; Shi, Yuanchun ; Chen, Boliang
Author_Institution :
Tsinghua Univ., Beijing
Abstract :
In this paper, we present NALP (navigating assistant using laser pointer), a novel interaction technique for large display presentation control. NALP is based on laser dot detection, track recognition and space segmentation, allowing users to manipulate the presentation software (such as PowerPoint ) directly and freely using any kind of common laser pointer. Demanding users only to sweep the pointer to and fro on display, this technique to a large extent solved the problems caused by hand jitter, latency and detection errors existing in other navigation assistant systems. Report on evaluation experiments shows that when delivering an electronic and interactive presentation with large displays, NALP can effectively meet the need and is preferred over other laser pointer interactive methods.
Keywords :
interactive devices; interactive systems; lasers; large display presentation; laser dot detection; navigating assistant using laser pointer; pointer interactive methods; presentation software; space segmentation; track recognition; Computer displays; Computer errors; Costs; Delay; Jitter; Navigation; Optical control; Optical design; Power lasers; Usability; Direct Interaction; Large Display; Laser Pointer; Presentation Control; Space Segmentation;
Conference_Titel :
Advances in Computer-Human Interaction, 2008 First International Conference on
Conference_Location :
Sainte Luce
Print_ISBN :
978-0-7695-3086-4
DOI :
10.1109/ACHI.2008.54