Superiority of a Handheld Perspective-Coupled Display in Isomorphic Docking Performances
In Proceedings of the 2017 ACM International Conference on Interactive Surfaces and Spaces. pages 72-81. 2017.
Six degrees of freedom docking is one of the most fundamental tasks when interacting with 3D virtual worlds. We investigated docking performances with isomorphic interactions that directly relate the 6-dof pose of the input device to that of the object controlled. In particular, we studied a Handheld Perspective-Coupled Display (HPCD); which is a novel form of interactive system where the display itself is handheld and used as the input device. It was compared to an opaque HMD and to a standard indirect flat display used with either a sphere or an articulated arm as the input device. A novel computation of an Index of Difficulty was introduced to measure the efficiency of each interaction. We observed superior performances with the HPCD compared with the other interactions by a large margin (17% better than the closest interaction).