Perform ance Evaluation of A New Teleconference System by High Definition Om ni-directionalVideo Transm ission

The omni-directional image has m ore advantages in that it provides a wider view than a single directional cam era and able to realize flexible TV conferencing even between remotely separated snail room s. In this paper, In this paper, a new teleconference system by high definition flexible middleware system for omni-directional video transmission is introduced, we describe system architecture and functions of the middleware for high -definition omni-directional image control and effective video transmission system using D V and HDV (1080 i format) [4] .QoS control function is also introduced to dynamically control the frame rate of video depending on the changes of network and CPU load. The prototype system of a TV conference is constructed to evaluate the performance of our suggested high -definition omni-directional system . Through the functional and performance evaluation of the prototyped system , w e could verify the usefulness of our proposed system .