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Journal of Sensors
Volume 2018 (2018), Article ID 6073786, 15 pages
Research Article

Structural Motion Grammar for Universal Use of Leap Motion: Amusement and Functional Contents Focused

Division of Media Software, Sungkyul University, Anyang City, Republic of Korea

Correspondence should be addressed to Seongah Chin

Received 19 May 2017; Revised 17 November 2017; Accepted 27 November 2017; Published 9 January 2018

Academic Editor: Stefano Stassi

Copyright © 2018 Byungseok Lee et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Motions using Leap Motion controller are not standardized while the use of it is spreading in media contents. Each content defines its own motions, thereby creating confusion for users. Therefore, to alleviate user inconvenience, this study categorized the commonly used motion by Amusement and Functional Contents and defined the Structural Motion Grammar that can be universally used based on the classification. To this end, the Motion Lexicon was defined, which is a fundamental motion vocabulary, and an algorithm that enables real-time recognition of Structural Motion Grammar was developed. Moreover, the proposed method was verified by user evaluation and quantitative comparison tests.