| 一种改进的耦合编码器的视频降噪方法 |
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| 引用本文： | 徐成,谢宏. 一种改进的耦合编码器的视频降噪方法[J]. 小型微型计算机系统, 2010, 31(3) |
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| 作者姓名： | 徐成 谢宏 |
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| 作者单位： | 湖南大学计算机与通信学院,湖南,长沙,410082 |
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| 基金项目： | 江苏省"图像处理与图像通信"重点实验室开放基金项目 |
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| 摘 要： | 为了降低视频降噪算法的计算量,提出一种适用于H.264的分级非线性确定滤波因子的方案.该方法是对变换域时间方向滤波算法的改进,根据绝对误差和和运动适量选用相应的滤波因子后,通过调节DCT系数实现降噪.实验结果表明该方法简单、计算量小并有较好的降噪效果.
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| 关 键 词： | 滤波因子 降噪 变换域时间方向滤波 绝对误差和 运动矢量 |
Improved Denoising Method Embedded in Video Compression |
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| XU Cheng,XIE Hung. Improved Denoising Method Embedded in Video Compression[J]. Mini-micro Systems, 2010, 31(3) |
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| Authors: | XU Cheng XIE Hung |
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| Affiliation: | XU Cheng,XIE Hong(College of Computer , Communication,Hunan University,Changsha 410082,China) |
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| Abstract: | This paper presents a new hierarchical non-linear method for determining the filter factor,which is helpful to reduce computational complexity of video denoising.It is an improvement of transform-domain temporal filtering.It selects suitable filter factor for a block according to the SAD and MV firstly,and then implements denoising by multiplying the filter factor with each DCT coefficient..Experimental results indicate that it is simple with little computation and good denoising performance. |
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| Keywords: | filter factor denoising transform domain temporal filtering sum of absolutely difference motion vector |
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