| Radon-based ULM图像方向检测算法研究 |
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| 引用本文： | 黄文,张雪燕.Radon-based ULM图像方向检测算法研究[J].宁波大学学报(理工版),2012(1):103-107. |
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| 作者姓名： | 黄文 张雪燕 |
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| 作者单位： | 宁波广播电视大学信息系 |
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| 摘 要： | 通过分析以往算法的优劣,提出了基于Radon变换的匀速直线运动图像方向检测算法.首先指出匀速直线运动假设的合理性,推理该运动模式下图像的频谱特征;其次对经过预处理的图像应用Radon变换,并计算出运动方向.实验结果表明:为更准确地确定运动方向而过分地缩短步长,将使运算代价变大,而效果较小.
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| 关 键 词： | Radon变换 点扩展函数 最大类间差法 快速傅里叶变换 |
Research on Radon-based ULM Image Blur Direction Detection Algorithm |
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| HUANG Wen,ZHANG Xue-yan.Research on Radon-based ULM Image Blur Direction Detection Algorithm[J].Journal of Ningbo University(Natural Science and Engineering Edition),2012(1):103-107. |
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| Authors: | HUANG Wen ZHANG Xue-yan |
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| Institution: | (Department of Information,Ningbo Radio&TV University,Ningbo 315016,China) |
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| Abstract: | Address a Radon-based uniform linear motion(ULM)image blur direction detection algorithm by analyzing the advantages and disadvantages of the previous algorithms.First assume ULM’s rationality and reason characteristics of the image spectrum.Second apply Radon transform to the pretreatment image,and compute its motion direction.Further experiments show that to get more accurate direction reduces the excessive step,which greatly larges operational costs while the effect is small. |
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| Keywords: | radon transform point spread function Otsu fast fourier transform |
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