An integrated framework for interactive multimedia presentations in distributed multimedia systems

• Authors: Ramazan Savaş Aygü
• Venue: MULTIMEDIA '01 Proceedings of the ninth ACM international conference on Multimedia
• Year: 2001

An interactive multimedia presentation in a distributed multimedia system requires synchronization of media streams, preprocessing media for content-based retrieval and low-bandwidth transmission over network, and user interface for interacting multimedia presentations. The power of synchronization models is limited to the synchronization specifications and user interactions. We propose an event-based synchronization model that can handle time-based actions while enabling user interactions like backward and skip. For effective transmission of multimedia data, the multimedia data needs to be preprocessed. The sprite generation and moving objects segmentation can reduce the required bandwidth significantly. We propose a method for multiresolution sprite which will allow reproduction of the video at different resolutions. The object segmentation will be extracted by generating a closed boundary for the object. Since the video data may also exist in a compressed format, we also propose to extract new features from the compressed video. We will consider compressed data that is generated by Discrete Cosine Transform (DCT) which has been used in MPEG-1, MPEG-2, MPEG-4 \cite{MPEG-4} and H263.1. The user will be provided a high-level user interface to access the contents of the presentation. We will test this integrated framework on distance education project over the Internet.