TouchPair: Dynamic analog-digital object pairing for tangible interaction using 3D point cloud data

Sensor-based pairing technology between digital objects for interactions are used widely (e.g., smart phone to Bluetooth headset). In addition, research about interactions between daily normal analog objects (e.g., a doll, Lego block) and digital objects has progressed and is also popular. However, such research can only involve interactions with presetup objects. The paired objects cannot be changed dynamically. In this paper, we propose a new analog-digital object pairing method by intuitive touch interactions using three-dimensional point cloud data. Several touch pairing methods are described in detail and paired objects are changed dynamically using the proposed method. In addition, a simple tangible interaction between two objects is described after pairing. Finally, we demonstrate the high recognition rate of the proposed method using experiments and describe our system's contribution.