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Proceedings Paper

Rate distortion performance of leaky prediction layered video coding: theoretic analysis and results
Author(s): Yuxin Liu; Josep Prades-Nebot; Gregory W. Cook; Paul Salama; Edward J. Delp
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Paper Abstract

Leaky prediction layered video coding (LPLC) incorporates a scaled version of the enhancement layer in the motion compensated prediction (MCP) loop, by using a leaky factor between 0 and 1, to balance between coding efficiency and error resilience performance. In this paper, we address the theoretic analysis of LPLC using two different approaches: the one using rate distortion theory and the one using quantization noise modeling. In both approaches, an alternative block diagram of LPLC is first developed, which significantly simplifies the theoretic analysis. We consider two scenarios of LPLC, with and without prediction drift in the enhancement layer, and obtain two sets of rate distortion functions in closed form for both scenarios. We evaluate both closed form expressions, which are shown to conform with the operational results.

Paper Details

Date Published: 14 March 2005
PDF: 12 pages
Proc. SPIE 5685, Image and Video Communications and Processing 2005, (14 March 2005); doi: 10.1117/12.591406
Show Author Affiliations
Yuxin Liu, Nokia Inc. (United States)
Josep Prades-Nebot, Univ. Politecnica de Valencia (Spain)
Gregory W. Cook, Purdue Univ. (United States)
Paul Salama, Indiana Univ./Purdue Univ. at Indianapolis (United States)
Edward J. Delp, Purdue Univ. (United States)


Published in SPIE Proceedings Vol. 5685:
Image and Video Communications and Processing 2005
Amir Said; John G. Apostolopoulos, Editor(s)

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