Accurate Wide-Range Scaling Manipulation of the Model with a 6-DOF Tracking Device

Abstract

In virtual reality applications, translation, orientation, and scaling are the three basic properties of 3D model manipulation. The 6-DOF tracking device can be used to directly manipulate the former two properties. However, the scaling property cannot be directly mapped with a hand-held tracking device because it is physically impossible. In this study, we first compare various schemes for mapping the translation and orientation of a handheld tracking device to the 3D model’s scaling property. Next, we propose a scaling manipulation framework that combines the advantages of different schemes. This enables accurate and natural wide-range scaling with the orthogonal combination design of the translation and orientation data of the tracking device. The efficiency and accuracy of the proposed framework were examined in a user study, which verified that it improved the scaling error of wide-range scaling by over 55% without a significant decrease in time performance. Finally, two scaling scenarios for the application of this framework were presented.

Keywords:

• 6-DOF tracking device
• manipulation
• scaling task
• mid-air interaction

Disclosure statement

No potential conflict of interest was reported by the author(s).

Notes

1 https://assetstore.unity.com/packages/tools/gui/world-map-globe-lite-edition-48429

2 https://sourceforge.net/projects/scaling-framework/

Additional information

Funding

This work was supported by the National Natural Science Foundation of China under grant 62332003 and National Key Research and Development Program of China under grant 2016YFB1001304.

Notes on contributors

Jiaxin Yu

Jiaxin Yu is currently pursuing a PhD degree in Communication and Information Systems at Jilin University. His research interests include 3D human–computer interaction and multimodal interaction in AR/VR environments.

Weizhi Nai

Weizhi Nai is currently an associate professor at Jilin University, China. His study interests include gesture based human–computer interaction and virtual reality applications.

Xiaoying Sun

Xiaoying Sun is currently a professor at Jilin University, China. His research interests include human–computer interaction, haptic feedback, communication engineering, etc.