| 受限码率下一种多帧复合预测方法 |
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| 引用本文： | 陈汉强,朱光喜. 受限码率下一种多帧复合预测方法[J]. 华中科技大学学报(自然科学版), 2002, 30(3): 92-93 |
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| 作者姓名： | 陈汉强 朱光喜 |
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| 作者单位： | 华中科技大学电子与信息工程系,430074;华中科技大学电子与信息工程系,430074 |
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| 摘 要： | 提出了一种适用于多帧复合预测的算法,利用该算法对多帧复合预测的运动矢量进行,工判断对某一个宏块（MB）是否使用该方法,定义一个率失真函数作为衡量标准,用渐近方法对参与预测的两个宏块进行选择,当率失真函数的值达到最小时得到最佳的预测运动矢量。该方法可以明显减小输出的码率。
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| 关 键 词： | 图像处理 多帧复合预测 多帧预测 高级预测模式 |
| 文章编号： | 1671-4512(2002)03-0092-02 |
| 修稿时间： | 2001-09-05 |
Combined multiple reference picture motion-compensated prediction under constraint bit rate |
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| Chen Hanqiang Zhu GuangxiPostgraduate, Dept. of Electronics & Information Eng.,Huazhong Univ. of Sci. & Tech.,Wuhan ,China.. Combined multiple reference picture motion-compensated prediction under constraint bit rate[J]. JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE, 2002, 30(3): 92-93 |
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| Authors: | Chen Hanqiang Zhu GuangxiPostgraduate Dept. of Electronics & Information Eng. Huazhong Univ. of Sci. & Tech. Wuhan China. |
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| Affiliation: | Chen Hanqiang Zhu GuangxiPostgraduate, Dept. of Electronics & Information Eng.,Huazhong Univ. of Sci. & Tech.,Wuhan 430074,China. |
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| Abstract: | In this paper, an algorithm is put forward to choose proper motion vectors and decide whether to use such kind of prediction method or not. In the algorithm, a rate distortion function is defined to evaluate if the chosen motion vectors are the best. The process of searching for motion vectors is over when the function reaches the nadir. The result of experiments shows the efficiency of the method. |
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| Keywords: | image processing combined multiple reference picture motion compensated prediction multiple reference picture motion compensated prediction advanced prediction mode |
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