Interaction with CG Image through Real Shadows of Objects Considering Their Color and Motion for Creating Ikebana Contents

In this research, I propose a method to interact with CG image through real shadows of various physical objects considering their color and motion. In this method, a projector casts light on the physical objects to generate shadows, and it is possible to perform interactions such as generating or moving CG by using the shadows. At this time, CG objects generated by the interaction would change according to the color of the physical objects. Then I applied the proposed method to an interactive content using Ikebana. I exhibited this content at an event introducing Japanese culture, and the content was well received by the visitors.