کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
401203 | 1439010 | 2012 | 14 صفحه PDF | دانلود رایگان |
The increasing use of remote pointing devices in various application domains is fostering the adoption of pointing enhancement techniques which are aimed at counterbalancing the shortcomings of desk-free interaction. This paper describes the strengths and weaknesses of existing methods for ray pointing facilitation, and presents a refinement of Smoothed Pointing, an auto-calibrating velocity-oriented precision enhancing technique. Furthermore, the paper discusses the results of a user study aimed at empirically investigating how velocity-oriented approaches perform in target acquisition and in trajectory-based interaction tasks, considering both laser-style and image–plane pointing modalities. The experiments, carried out in a low precision scenario in which a Wiimote was used both as a wand and a tracking system, show that Smoothed Pointing allows a significant decrease in the error rate and achieves the highest values of throughput in trajectory-based tasks. The results also indicate that the effectiveness of precision enhancing techniques is significantly affected by the pointing modality and the type of pointing task.
► We investigate interaction design space for ray pointing facilitation.
► We revise and evaluate Smoothed Pointing, an auto-calibrating velocity-oriented technique.
► Smoothed Pointing produces a significant decrease in the error rate.
► In trajectory-based tasks, Smoothed Pointing achieves the highest values of throughput.
Journal: International Journal of Human-Computer Studies - Volume 70, Issue 4, April 2012, Pages 287–300