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Rate distortion analysis of leaky prediction layered video coding using quantization noise modeling

9 years 12 months ago
Rate distortion analysis of leaky prediction layered video coding using quantization noise modeling
Unlike conventional layered scalable video coding, leaky prediction layered video coding (LPLC) introduces a leaky factor , which takes on values in the range between 0 and 1, to partially include the enhancement layer in the motion compensation loop, hence obtaining a trade-off between coding efficiency and error resilience performance. In this paper, we use quantization noise modeling to theoretically analyze the rate distortion performance of LPLC. An alternative block diagram of LPLC is first developed, which significantly simplifies the theoretical analysis. Closed form expressions, as a function of the leaky factor, are derived for two scenarios, where drift error occurs in the enhancement layer and no drift occurs within the motion compensation loop. Theoretical results are evaluated with respect to the leaky factor, showing that a leaky factor of 0.4-0.6 is a good choice in terms of the overall rate distortion performance of LPLC.
Yuxin Liu, Josep Prades-Nebot, Paul Salama, Edward
Added 24 Oct 2009
Updated 24 Oct 2009
Type Conference
Year 2004
Where ICIP
Authors Yuxin Liu, Josep Prades-Nebot, Paul Salama, Edward J. Delp
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