| 摘要 |
<P>PROBLEM TO BE SOLVED: To photograph a lecturer together with a material for lecture, and to let a learner easily concentrate on the lecture. <P>SOLUTION: Electronic data of an image of the material for lecture is transmitted to a front projector 2, from which the image of the material for lecture is projected on a whiteboard 3 serving as a projection screen. The lecturer 4 delivers a lecture based on the image of material for lecture while handwriting characters or graphics for explanation over the image of the material for lecture on the whiteboard 3. Animation video of lecture scenes is created by photographing, with a digital video camera 5, the lecturer 4 and the lecture scenes wherein whiteboard 3 is used, and is distributed to learners via communication lines such as the Internet. <P>COPYRIGHT: (C)2008,JPO&INPIT |
