Real-time representation of inter-reflection for cubic marker

This paper proposes a method for rendering an inter-reflection between a marker and a glossy floor in Augmented Reality (AR). At first, a reflectance ratio of the floor is estimated from the reflection on the floor and from the marker box directly. Then the roughness of the floor is estimated based on the sharpness of the reflected marker box image on the floor. Lastly, the marker box reflection is eliminated based on the surrounding colors of the marker box reflection. Rendered images show that natural inter-reflection can be achieved by using the proposed method.