Abstract
We developed a HD remote lecture system to link a science museum and a school. By compositing a teacher into image of the library picture or the simulator software realtime, he can get into the images and deliver a lecture. And teacher enables it to perform the change of library, operation of simulator software, and the writing into library picture by operating a chalk-type LED light. It is difficult to mix images by installing blue back on the museum, but by correction of the background subtraction, blue back and special equipment does not have to be prepared and thus a remote lecture can be realized easily from the museum. This developed system is used for the actual remote lectures and the practical performance is confirmed.
