From University of Tokyo:

In our laboratory, the Lumipen system has been proposed to solve the time-geometric inconsistency caused by the delay when using dynamic objects. It consists of a projector and a high-speed optical axis controller with high-speed vision and mirrors, called Saccade Mirror (1ms Auto Pan-Tilt technology). Lumipen can provide projected images that are fixed on dynamic objects such as bouncing balls. However, the robustness of the tracking is sensitive to the simultaneous projection on the object, as well as the environmental lighting... (full article)