3D Rotation Adjustment Based on Gravity Information for Handheld Augmented Reality
Varunyu Fuvattanasilp (1551202 )
The ability to manipulate virtual content is an important task in augmented reality(AR) which require user to control 7 degrees of freedom(DoF) i.e. translation, rotation and scaling. However, it is challenging to do so with handheld devices because of the limited number of input channels. In this presentation, we introduce a new user interface for manipulating AR contents by combining our previous work “SlidAR”, which allows users to easily position AR contents, with our proposed method for rotation which uses gravity information. We based our rotation methods on the assumption that objects in our daily life are mostly aligned either parallel or perpendicular to the gravity direction. By using the gravity direction to help in orienting AR contents, we can reduce DoF users have to manipulate. We validated the effectiveness of our user interface by conducting a user study, and we present our results here.