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Prediction structure and quantization parameter selection for efficient multiview video coding

机译:高效多视点视频编码的预测结构和量化参数选择

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摘要

Multiview video is obtained by capturing a three-dimensional scene using many cameras simultaneously. Since adjacent view sequences have strong spatial redundancy as well as temporal redundancy, we can achieve additional coding gain by eliminating the spatial redundancy. In this paper, we propose view-temporal prediction structures that can be adjusted to various characteristics of general multiview video by separating them into temporal and view prediction structures. The proposed temporal prediction structure minimizes the average distance between a frame to be coded and its reference frames. The proposed view prediction structure considers the location of the I frame in anchor and the number of B frames to be inserted in anchor. We also propose a quantization parameter selection method for enhancing coding efficiency of views whose anchor frames are coded as B frames. Experimental results show that the proposed algorithms achieved 0.10 to 0.34 dB of peak SNR (PSNR) gain and reduced the variances of PSNR values of views by 28.26% on average against the results by the reference prediction.
机译:通过同时使用许多摄像机捕获三维场景来获得多视图视频。由于相邻的视图序列具有强大的空间冗余度和时间冗余度,因此我们可以通过消除空间冗余度来实现额外的编码增益。在本文中,我们提出了视时预测结构,可以将其分为时域和视域预测结构,以适应普通多视点视频的各种特征。所提出的时间预测结构使要编码的帧与其参考帧之间的平均距离最小。提出的视图预测结构考虑了I帧在锚点中的位置以及要插入到锚点中的B帧的数目。我们还提出了一种量化参数选择方法,用于提高将锚帧编码为B帧的视图的编码效率。实验结果表明,与参考预测的结果相比,所提算法的峰值SNR(PSNR)增益达到0.10至0.34 dB,并且视图的PSNR值方差平均降低了28.26%。

著录项

  • 来源
    《Optical engineering》 |2008年第4期|047401.1-047401.10|共10页
  • 作者

    Pil-Kyu Park; Yo-Sung Ho;

  • 作者单位

    Gwangju Institute of Science and Technology (GIST) 1 Oryong-Dong, Buk-Gu Gwangju, 500-712, Korea Samsung Electronics Co., Ltd., S/W Platform Lab., Telecommunication R&D Centre 416, Metan-3Dong Yeongtong-Gu, Su-won, Gyeonggi 443-742, Korea;

    Gwangju Institute of Science and Technology (GIST) 1 Oryong-Dong, Buk-Gu Gwangju, 500-712, Korea;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    multiview video coding; view temporal prediction structure; joint multiview video model;

    机译:多视点视频编码;查看时间预测结构;联合多视图视频模型;

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