| 一种基于空间预测的背景Sprite编码算法 |
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| 引用本文： | 魏宪宇. 一种基于空间预测的背景Sprite编码算法[J]. 哈尔滨理工大学学报, 2004, 9(2): 103-106 |
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| 作者姓名： | 魏宪宇 |
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| 作者单位： | 哈尔滨工业大学,科技发展有限公司,黑龙江,哈尔滨,150001 |
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| 摘 要： | 介绍了一种高效的基于空间预测的Sprite编码方法，提出了一种有效的图像填补技术。在亮度块编码的同时采用多预测模式用于色度块的编码，从而进一步提高图像中色度分量的编码效率，试验结果表明，所提出的方法在相同的比特率时与MPEG-4相比，峰值信噪比(PSNR)平均可以提高0．5dB．并且，该方法还可以用于一般静态图像的编码。
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| 关 键 词： | 视频编码 空间预测 MPEG-4标准 |
| 文章编号： | 1007-2683(2004)02-0103-04 |
| 修稿时间： | 2003-01-16 |
High Efficient Background Sprite Coding Based on Spatial Prediction |
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| WEI Xian-yu. High Efficient Background Sprite Coding Based on Spatial Prediction[J]. Journal of Harbin University of Science and Technology, 2004, 9(2): 103-106 |
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| Authors: | WEI Xian-yu |
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| Abstract: | A higher efficient sprite coding method is presented based on spatial prediction, and an effective image padding technique is developed for this purpose. Moreover, multiple prediction modes are also proposed for the coding of chrominance blocks as well as luminance blocks, which can further improve the coding efficiency of chrominance components. Experimental results demonstrate our proposed method can achieve averagely 0.5 dB in PSNR at the same bitrate compared with the method defined by MPEG-4. Furthermore, this method can also be used for coding the general static images. |
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| Keywords: | video coding spatial prediction MPEG-4 standard |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
