Design and comparative evaluation of Smoothed Pointing: A velocity-oriented remote pointing enhancement technique |
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| Authors: | L. Gallo A. Minutolo |
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| Affiliation: | 1. ICAR-CNR, Via Pietro Castellino 111, 80131 Napoli, Italy;2. University of Naples “Parthenope”, Centro Direzionale, Isola C4, 80143 Napoli, Italy;1. Department of Veterinary Gynaecology and Obstetrics, Guru Angad Dev Veterinary and Animal Sciences University, Ludhiana, Punjab 141 004, India;2. Department of Animal Genetics and Breeding, Guru Angad Dev Veterinary and Animal Sciences University, Ludhiana, Punjab 141 004, India;1. Physics Department, Faculty of Science, Tanta University, 31527 Tanta, Egypt;2. Physics Department, Faculty of Science, Swiz Canal University, Swiz, Egypt;1. Centro Universitario de la Defensa, Escuela Naval Militar, Marín, Spain;2. Dept. de Teoría do Sinal e Comunicacións, Universidade de Vigo, Vigo, Spain;1. School of Mechanical and Electrical Engineering, Central South University, Changsha 410083, China;2. State Key Laboratory of High Performance Complex Manufacturing, Central South University, Changsha 410083, China;3. School of Mechanical Engineering, Hebei University of Architecture, Zhangjiakou 075051, China;1. Hypervelocity Aerodynamics Institute, China Aerodynamics Research and Development Center, Mianyang, Sichuan 621000, China;2. High Enthalpy Flow Diagnostics Group, Institute of Space Systems, University of Stuttgart, 70569 Stuttgart, Germany;1. The University of Tokyo, The Department of Civil Engineering, Tokyo, Japan;2. C. E. Management Integrated Laboratory Co.,Ltd., Department of Geophysical Survey, Osaka, Japan |
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| Abstract: | 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. |
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