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Region-based bit allocation and rate control for depth video in HEVC

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Abstract

In this paper, we present a novel rate control method with optimized region-based bit allocation for depth video coding. First, a synthetic view distortion oriented segmentation method is proposed to divide depth video into different regions, including texture areas and smooth areas. Then, the expanded exponential distortion-rate (D-R) models and power quantization parameter-rate (QP-R) models are investigated to simulate rate-distortion (R-D) characteristics of different regions. Finally, an optimal bit allocation scheme is developed to adaptively allocate target bit with the division. Experimental results on various video sequences demonstrate that the proposed algorithm achieves excellent R-D efficiency and bit rate accuracy compared with benchmark algorithms.

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Acknowledgments

This research was partially supported by the Natural Science Foundation of China (No. 61271324, 61471262, 61520106002, 91320201, 61202266), International Science and Technology Cooperation Program (No.2010DFA12780), and Natural Science Foundation of Tianjin (No.12JCYBJC10400).

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Authors and Affiliations

  1. School of Electronic Information Engineering, Tianjin University, Tianjin, China

    Jianjun Lei, Zhenzhen Li, Tao Zhu, Xiaoxu He, Lei You & Chunping Hou

Authors
  1. Jianjun Lei

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  2. Zhenzhen Li

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  3. Tao Zhu

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  4. Xiaoxu He

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  5. Lei You

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  6. Chunping Hou

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Corresponding author

Correspondence toXiaoxu He.

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Lei, J., Li, Z., Zhu, T.et al. Region-based bit allocation and rate control for depth video in HEVC.Multimed Tools Appl76, 4179–4195 (2017). https://doi.org/10.1007/s11042-016-3336-z

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