Support for scalable video using parallelism with merging

Alfred R. Watkins

doi:10.1117/12.234805

13 March 1996 Support for scalable video using parallelism with merging

Alfred R. Watkins

Proceedings Volume 2670, Storage and Retrieval for Still Image and Video Databases IV; (1996) https://doi.org/10.1117/12.234805
Event: Electronic Imaging: Science and Technology, 1996, San Jose, CA, United States

Abstract

Parallelism with merging (PWM) techniques for storing and retrieving continuous media combine the use of I/O parallelism and object interleaving to meet the playback requirements of continuous media. The PWM techniques previously proposed do not explicitly address support for scalable video, i.e. the ability to retrieve a video at various bandwidths or data rates. Compression techniques for video such as MPEG and 3D subband coding encode video sequences in such a way as to allow subsets of the full resolution video bit stream to be decoded to recreate lower resolution videos. This facilitates support for various quality of service levels without having to store each level separately. In this paper, we extend the PWM techniques by integrating scalable video support. We show how this integration impacts the continuity requirements, buffering requirements, and admission control criteria. Results of a simulation study are presented which compare the various scalable-PWM strategies.

Citation Download Citation

Alfred R. Watkins "Support for scalable video using parallelism with merging", Proc. SPIE 2670, Storage and Retrieval for Still Image and Video Databases IV, (13 March 1996); https://doi.org/10.1117/12.234805

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