On the bitmap-image based presenting

This paper considers the problem of giving a presentation over heterogeneous computing environment including different kinds of networks and information devices. This style of presenting is useful in distance learning, distance meeting, distance conferencing and other situations. After discussing the importance of separating content creation and presenting, the bitmap-image based presenting (BIP) is considered. A large number of presentations are studied, which show that BIP does not require much data amount. Furthermore, the next methods are studied to perform BIP even more efficiently: (1) background and foreground separation; (2) color reduction; (3) coding optimization. Other techniques like motion compensation and layered coding are also discussed. Finally, a BIP based distance presenting system is presented. It works over a TCP/IP network, and has been tested with a number of platforms including Linux PC, Windows PC, PDA and cell phone emulator.