| 一种改进的图像中值滤波算法 |
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| 引用本文： | 李刚,范瑞霞. 一种改进的图像中值滤波算法[J]. 北京理工大学学报, 2002, 22(3): 376-378. DOI: 10.3969/j.issn.1001-0645.2002.03.030 |
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| 作者姓名： | 李刚 范瑞霞 |
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| 作者单位： | 北京理工大学,自动控制系,北京,100081 |
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| 摘 要： | 为了满足图像预处理的实时性要求,提出一种基于前一帧图像的改进的中值滤波算法.充分利用相邻窗口间的相关信息,通过移出一列(或一行)像素并移入另一列(或一行)像素,而其余已排序像素保持不变,仅对新移入的像素进行排序的方法,完成中值滤波处理,达到滤波要求.实验证明该算法可以有效地降低图像预处理的复杂度,使传统中值滤波算法的复杂度由原来的O(D2)降到了O(D),应用效果良好.
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| 关 键 词： | 中值滤波算法 滑动窗口 复杂度 图像处理 |
| 文章编号： | 1001-0645(2002)03-0376-03 |
| 收稿时间： | 2002-01-17 |
| 修稿时间： | 2002-01-17 |
A New Median Filter Algorithm in Image Tracking Systems |
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| LI Gang and FAN Rui xia. A New Median Filter Algorithm in Image Tracking Systems[J]. Journal of Beijing Institute of Technology(Natural Science Edition), 2002, 22(3): 376-378. DOI: 10.3969/j.issn.1001-0645.2002.03.030 |
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| Authors: | LI Gang and FAN Rui xia |
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| Affiliation: | Dept. of Automatic Control, Beijing Institute of Technology, Beijing100081, China;Dept. of Automatic Control, Beijing Institute of Technology, Beijing100081, China |
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| Abstract: | A new method of median filter algorithm based on the last frame is proposed to meet the demands of real time image preprocessing. It makes full use of the relative information of adjacent windows to finish the median filter processing by arranging only the added column (or row) of pixels with the rest of the arranged pixels remaining unchanged when one column (or row) of pixels is deleted and another column (or row) added. It has been proved that the new algorithm can well reduce the complexity of traditional median filter algorithm from O(D 2) to O(D) . Its results of application turns out to be satisfactory. |
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| Keywords: | median filter algorithm glide window complexity image processing |
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