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Publication Detail
Real-time ubiquitous multimedia streaming using rate-distortion-complexity models
  • Publication Type:
  • Authors:
    van der Schaar M, Andreopoulos Y, Li Q
  • Publisher:
  • Publication date:
  • Place of publication:
    Piscataway, US
  • Pagination:
    639, 643
  • Published proceedings:
    GLOBECOM '04: IEEE Global Telecommunications Conference: Emerging technologies, applications and services: 29 November-3 December, 2004, Dallas, Texas, Hyatt Regency Dallas at Reunion Hotel
  • Volume:
  • ISBN-10:
  • Status:
  • Language:
  • Keywords:
    computational complexity, data compression, decoding, image sequences, motion compensation, multimedia communication, network servers, rate distortion theory, transform coding, video coding, wavelet transforms
We discuss the benefits of using realistic rate-distortion-complexity (R-D-C) models to guide ubiquitous multimedia streaming systems. At the server or proxy, on-the-fly bitstream adaptation to varying network conditions and diverse end-devices' processing capabilities can be performed by relying on accurate (pre-computed) R-D-C models. To accommodate various types of receivers with different resources, we introduce the concept of generic complexity metrics (GCMs) which quantify in a generic manner the decoding complexity of a compressed video sequence. A state-of-the-art motion-compensated wavelet-based coding scheme is used to illustrate how R-D-C models can be computed for a particular compression scheme. Finally, we propose a receiver-driven streaming framework and show how R-D-C models can be used to assist real-time wired/wireless multimedia transmission applications.
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