Silhouette Interactions
using the hand shadow as interaction modality
Eria Chita, Yuta Sugiura, Sunao Hashimoto, Kai Kunze, Masahiko Inami, and Masa Ogata


We present the concept of Silhouette Interactions, using the shadow of our hand as an extension of our body to in teract with our physical environment. We apply Silhouette Interactions to the application case of home appliance control, show 2 user studies to identify interesting appliances, actions and shadow gestures to be used. Informed by the studies, we also implement an initial prototype system for further evaluation. We discuss best practices and lessons learned for Silhouette Interactions.