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Recognition Characteristics of Interface Designed for Gesture Operations of 3D Objects

Sekine Tsutomu

Advances in Science and Technology. Research Journal

2019

Vol. 13, no 4

143--150

This study focuses on the development of an interface for gesture control and Boolean operation of 3D objects in 3D computer-aided design (CAD). Although mouse and keyboard have been mainly used as computer input devices, novel computer interfaces are becoming increasingly popular with rapid development of computer technologies. Among several computer interfaces, the gesture interface is well-known as an system operable through the natural human behavior. However, the application to 3D CAD has been scarcely studied so far. From the backgrounds, a simple gesture interface was developed to operate a 3D object in 3D CAD. Leap Motion Controller (LMC) was used as a motion sensor device. A dialog-based graphical user interface (GUI) was also created for the parameter setting. As a result, several operational functions could be successfully executed through various hand-finger motions. Moreover, the system enabled us to experience an intuitive interaction with 3D CAD. Then, the several demonstrations were performed to identify the recognition characteristics of the gesture interface. The differences in the recognition rate were revealed as the results. Especially, it confirmed that a combination of static and dynamic gestures could help to enhance the recognition rate in the gesture interface using LMC. In accordance with the findings, the functions for Boolean operation were also implemented for the manipulation of a 3D object, such as extrusion and hole making.

Gesture interface for the blind using the Leap Motion controller

Dobosz K., Pomocnik R.

Studia Informatica

2017

Vol. 38, nr 4

79--88

The aim of described preliminary studies was the evaluation of prototype gesture user interface using the Leap Motion controller. Provided experiment used a modified version of the file explorer that was supported by gesture controller and synthesized voice feedback. Obtained results shows that visual disability does not have a significant influence on the correctness of controlling the application using the proposed contact-free interface.

Celem opisanych badań wstępnych była ocena użycia prototypowego gestowego interfejsu użytkownika wykorzystującego kontroler Leap Motion. Przeprowadzony eksperyment wykorzystywał zmodyfikowaną wersję eksploratora plików wspieranego przez interfejs gestowy oraz głosowe sprzężenie zwrotne. Otrzymane wyniki pokazują, że niepełnosprawność wzrokowa nie ma znaczącego wpływu na poprawność sterowania aplikacją z proponowanym, bezdotykowym interfejsem.