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一种改进H.264高保真编码的量化器设计方法 被引量:1

An Improved Quantization Method Based on Offsetting Matrices for H.264 High Fidelity Video Coding
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摘要 在H.264/AVC量化方法的基础上引入量化误差补偿矩阵来进行舍入调整,通过控制死区宽度使得量化器既能够适用于非Laplacian源的数据分布,同时又不影响量化器对Laplacian源原有的性能。实验结果表明,该方法对不同的视频信源,平均可以提高PSNR1dB以上,对高保真编码应用场合的效果尤其明显。 This paper introduces a method based-on offsetting matrices in the quantizer which can control the dead-zone size to make the quntizer fit for such a case and also does not affect the performance of Laplacian source. PSNR increases about 1 dB in experiment, especially at high fidelity video coding.
出处 《电视技术》 北大核心 2005年第9期24-25,28,共3页 Video Engineering
基金 国家自然科学基金重点项目(60332030)
关键词 视频编码 H.264/AVC标准 量化器 舍入调整矩阵 高保真 video coding H.264/AVC quantizer rounding offset matrices high fide-litg
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参考文献9

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同被引文献10

  • 1崔岩松,段大高,邓中亮.H.264变换编码与量化原理及优化研究[J].现代有线传输,2004(5):71-74. 被引量:1
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