Title :
Perform ance Evaluation of A New Teleconference System by High Definition Om ni-directionalVideo Transm ission
Author :
Sato, Yosuke ; Maita, Yuya ; Oto, Koji Hashim ; Shibata, Yoshitaka
Author_Institution :
Iwate Prefectural Univ., Iwate
Abstract :
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 .
Keywords :
cameras; middleware; quality of service; teleconferencing; video communication; QoS control function; high definition flexible middleware system; high definition omni-directional video transmission; image control; omnidirectional iamge; single directional camera; teleconference system; Ferroelectric films; High definition video; Lenses; Nonvolatile memory; Performance evaluation; Random access memory; Read only memory; Real time systems; TV; Teleconferencing;
Conference_Titel :
Multimedia and Expo, 2007 IEEE International Conference on
Conference_Location :
Beijing
Print_ISBN :
1-4244-1016-9
Electronic_ISBN :
1-4244-1017-7
DOI :
10.1109/ICME.2007.4285084