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The Assessment of Learning Performance Using Dynamic Time Warping Algorithm for the Virtual Reality of Full-Body Motion Sensing Control

2016 | Americas Conference on Information Systems | Citations: 0
Authors: Sun, Huey-Min

Abstract: This proposed virtual reality system uses an intuitive interaction method throug ... Expand

Abstract: This proposed virtual reality system uses an intuitive interaction method through the motion of the trainer visualized in real time, and provides users with viewing the motion from the third-person viewpoint to follow the teacher as close as possible. It is integrated by a 3D rendering engine, i.e., objectoriented graphics rendering engine (OGRE), a middleware, i.e., OpenNI SDK, and Microsoft Kinect sensor. The matching assessment method is based on dynamic time warping algorithm for two time series. In order to understand the effectiveness of objective assessment in interacting virtual environment with full-body control, we make a comparison with the subjective assessment by six viewers. Experimental results show that the dynamic time warping algorithm is promising and the same as the subjective assessment. Collapse

Semantic filters: 3-D graphic

Topics: virtual reality information management online learning system database system 3-D graphic

Methods: experiment computational algorithm time series analysis longitudinal research survey
Usability Design and Psychological Ownership of a Virtual World

2011 | Journal of Management Information Systems | Citations: 53
Authors: Lee, Younghwa; Chen, Andrew N. K.

Abstract: Virtual worlds, immersive three-dimensional virtual spaces where users interact ... Expand

Abstract: Virtual worlds, immersive three-dimensional virtual spaces where users interact with projected identities of other users (avatars) and objects, are becoming increasingly popular and continue to grow as highly interactive, collaborative, and commercial cyberspaces. However, extant research in this context has not paid much attention to usability design of a virtual world and corresponding effects on users' psychological desire to own and control the space and objects within it and subsequent behavior intention. In this study, we apply concepts of Web site usability and psychological ownership to develop a model that illustrates the relationships between seven usability factors (legibility, firmness, coherence, variety, mystery, classic, and expressive visual aesthetics), four antecedents of psychological ownership (cognitive appraisals, perceived control, affective appraisals, and self-investment), psychological ownership, and use intention. A cross-sectional study with 239 Second Life users was conducted. The results demonstrate that designing a usable virtual world that induces strong psychological ownership is crucial to attract users to spend more time, participate in more activities, and revisit the virtual world. This is an important finding for forward-looking e-business managers looking to invest their limited resources in designing a usable virtual world. In addition, by using our model and corresponding survey items, designers can benchmark and evaluate the usability of their current virtual worlds, compare the results to the designs of competitors, and upgrade the offerings of virtual worlds, as needed, by allocating available resources to the most influential design factors to suit their specific needs. Collapse

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Topics: virtual world usability usage intention architectural quality psychological ownership

Methods: survey psychometrics F-test mediation analysis cross sectional research

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Found 2 articles

The Assessment of Learning Performance Using Dynamic Time Warping Algorithm for the Virtual Reality of Full-Body Motion Sensing Control

Usability Design and Psychological Ownership of a Virtual World