Abstract
Authors have developed the communication system (WSCS) between the remote places using the shadow of own body. In order to enhance the existing expression of remote partner, we developed the shadow expression system using virtual grids in following two cases. One is that remote partner exists inside WSCS space. The other is that he/she exists outside of WCSC space. In the first case, we developed two expression systems. One is sandwiching shadow between two lines (Cross Line). The other is denting the grid of shadow area. In the latter case, we developed software that express both multiple virtual grids and communication partner's shadow whose density was changed by their position. Additionally, it was clarified that this expressing method can be applied to expressing the entrance and exit of audiences in a theater-type communication system.
