RealSense
Chien-Pang Lin, Chengyao Wang, Hou‐Ren Chen, Wei-Chen Chu, Mike Y. Chen · 2013
We present RealSense, a technology that enables users to easily share media files with proximate users by performing directional gestures on mobile devices. RealSense leverages the natural human group behavior of forming a circle and facing the center of the group. By continuously monitoring the directional heading of each device using only built-in orientation sensors, RealSense can compute the relative direction between all the devices. It simplifies media sharing because users do not need to lookup and specify the user IDs and device IDs of the intended recipients. We first evaluated the feasibility and design of RealSense, including the orientation sensor error and the minimal arc degree for selecting recipients. We then compared RealSense with three other common sharing interactions: 1) linear menu, 2) pie menu, and 3) NFC. Our results show that participants preferred RealSense over other sharing interactions, especially for groups of participants who were unacquainted with each other.