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Sensors (Basel). 2015 Apr 14;15(4):8642-63. doi: 10.3390/s150408642.

Exploring direct 3D interaction for full horizontal parallax light field displays using leap motion controller.

Author information

1
Holografika, Baross u. 3. H-1192 Budapest, Hungary. adhikarla.vamsi.kiran@itk.ppke.hu.
2
Faculty of Information Technology, Pazmany Peter Catholic University, Prater u. 50/a, Budapest 1083, Hungary. adhikarla.vamsi.kiran@itk.ppke.hu.
3
Faculty of Electrical Engineering, University of Ljubljana, Tržaška 25, Ljubljana 1000, Slovenia. jaka.sodnik@fe.uni-lj.si.
4
Faculty of Information Technology, Pazmany Peter Catholic University, Prater u. 50/a, Budapest 1083, Hungary. szolgay.peter@itk.ppke.hu.
5
Faculty of Electrical Engineering, University of Ljubljana, Tržaška 25, Ljubljana 1000, Slovenia. grega.jakus@fe.uni-lj.si.

Abstract

This paper reports on the design and evaluation of direct 3D gesture interaction with a full horizontal parallax light field display. A light field display defines a visual scene using directional light beams emitted from multiple light sources as if they are emitted from scene points. Each scene point is rendered individually resulting in more realistic and accurate 3D visualization compared to other 3D displaying technologies. We propose an interaction setup combining the visualization of objects within the Field Of View (FOV) of a light field display and their selection through freehand gesture tracked by the Leap Motion Controller. The accuracy and usefulness of the proposed interaction setup was also evaluated in a user study with test subjects. The results of the study revealed high user preference for free hand interaction with light field display as well as relatively low cognitive demand of this technique. Further, our results also revealed some limitations and adjustments of the proposed setup to be addressed in future work.

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