Comparative Analysis of 3D Interactive Modes in Different Object Layouts in Mixed Reality

Mid-air interaction is natural and intuitive in mixed reality environment, which has three main interaction modes, such as point-pinch interaction, head-pinch interaction, and gaze-pinch interaction. Improving interactive experience in mixed reality requires analysis and evaluation on the efficiencies of these interaction modes, especially their performance in different spatial layouts. In this study, the common spatial layout in mixed reality is divided into three basic types: vertical layout, horizontal layout and distributed layout. This study discusses the user experience of the above three interaction modes in the above three layout modes. The results show that gaze and pinch interaction provides users with the most efficient, relaxed and enjoyable choice interaction. Head and pinch interaction has no obvious advantages. The accuracy of point and pinch interaction is the best.