| 摘要 |
PROBLEM TO BE SOLVED: To enable easy recognition of the amount of deviation in the relationship between characters and diagrams input by a user in an information input board and characters and diagrams included in a projection image, in a system sharing information between a plurality of positions.SOLUTION: There is provided an apparatus used in a system for sharing information between a position and another position connected via a network, the apparatus including imaging means for photographing an information input board at the position, projection means for projecting an image on the information input board at the position, and display control means for controlling the display of the image to be projected on the information input board at the position, where the display control means causes the projection means to project a photographed image of the past state of the information input board at the position. |
