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Proceedings Paper

Joint temporal-spatial rate control with approximating rate-distortion models
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Paper Abstract

The joint temporal-spatial rate control problem was examined in to achieve proper temporal-spatial quality tradeoff. Theoretical analysis and the performance benchmark of several optimal/suboptimal algorithms were presented. However, the high computational complexity of these solutions prevents them from being used in practical applications. To address this problem, good rate-distortion (R-D) models used to approximate empirical R-D curves are developed in this work. The complexity caused by actual encoding is reduced so that the process of finding the optimal/suboptimal solutions is significantly expedited. Different approximating R-D models are proposed for INTRA, INTER and skipped frames, respectively, by considering both coding and interpolation dependencies among successive frames. Simulation results show that the approximation error of the proposed R-D models are very small, which results in small degradation of coded video quality.

Paper Details

Date Published: 4 January 2002
PDF: 10 pages
Proc. SPIE 4671, Visual Communications and Image Processing 2002, (4 January 2002); doi: 10.1117/12.453118
Show Author Affiliations
Shan Liu, Univ. of Southern California (United States)
JongWon Kim, Kwangju Institute of Science and Technology (South Korea)
C.-C. Jay Kuo, Univ. of Southern California (United States)

Published in SPIE Proceedings Vol. 4671:
Visual Communications and Image Processing 2002
C.-C. Jay Kuo, Editor(s)

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