Synchronization of hyper media transmission

        Abstract: This research presents a general framework to design and implement efficient and reliable way to synchronize real-time supermedia transmitted via the Internet. Supermedia is a combination of traditional multimedia (video, audio and text), haptic information (tactile force), temperature information and any other sensory information. Existing methods do not deal with synchronization and they are not immune to time delay. Since applications using the Internet for communication face random unbounded time delay their performance will be affected as a result. And unless this delay effect is dealt with the applications' performance will degrade considerably. Moreover, this research also includes real-time haptic feedback, which makes the problem more difficult. This method can be implemented on any system that includes real-time communicated supermedia streams that need to be synchronized on reception or that need to be synchronized with streams flowing in the opposite direction. The streams can be haptic media such as force feedback and are not limited to video, audio or text. Such a system can be a teleoperation or remote control system. Then the synchronization is between the operator and the controlled system and also between the different haptic and multimedia streams fed back regardless of their number and format. In addition, synchronization is ensured regardless of the time delay faced.

        Researchers: Imad Elhajj

        Publication:

Imad Elhajj, Henning Hummert, Ning Xi, Yun-hui Liu, "Real-Time Haptic Feedback in Internet-Based Telerobotic Operation", Electro/Information Technology Conference, Chicago, June 2000.

Imad Elhajj, Ning Xi, BooHeon Song, Meng-Meng Yu, Wang Tai Lo, Yun Hui Liu, "Transparency and Synchronization in Supermedia Enhanced Internet-Based Teleoperation", Submitted to IEEE International Conference on Robotics and Automation, 2002.

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