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

Shan Liu; JongWon Kim; C.-C. Jay Kuo

doi:10.1117/12.453118

4 January 2002 Joint temporal-spatial rate control with approximating rate-distortion models

Shan Liu, JongWon Kim, C.-C. Jay Kuo

Proceedings Volume 4671, Visual Communications and Image Processing 2002; (2002) https://doi.org/10.1117/12.453118
Event: Electronic Imaging, 2002, San Jose, California, United States

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.

Citation Download Citation

Shan Liu, JongWon Kim, and C.-C. Jay Kuo "Joint temporal-spatial rate control with approximating rate-distortion models", Proc. SPIE 4671, Visual Communications and Image Processing 2002, (4 January 2002); https://doi.org/10.1117/12.453118

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