| 基于频域识别运动模糊的模糊方向和模糊度 |
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| 引用本文： | 梁宇,钟金荣,林嘉宇. 基于频域识别运动模糊的模糊方向和模糊度[J]. 微处理机, 2011, 32(1): 59-63. DOI: 10.3969/j.issn.1002-2279.2011.01.017 |
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| 作者姓名： | 梁宇 钟金荣 林嘉宇 |
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| 作者单位： | 国防科学技术大学,电子科学与工程学院,长沙,410073 |
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| 摘 要： | 运动模糊图片的频谱中存在平行的零点直线。这里提出了一种算法,识别零点直线含有的运动模糊方向和模糊度信息:首先对模糊图像进行分块,然后将分成的小块相加,利用拉氏算子对最后的相加结果进行无方向性的二阶微分,通过二维FFT变换求得频谱。接着对频谱取绝对值、做归一化之后,修饰二值化结果,最后进行Radon变换,求得点扩展函数的运动方向和模糊长度。实验论证该算法可靠通用,性能优良。
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| 关 键 词： | 运动模糊 频谱 Radon变换 |
Identification of Motion Blur Direction and Motion Blur Length from Motion Blurred Image by Spectrum Analysis |
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| LIANG Yu,ZHONG JIN-rong,LIN JIA-yu. Identification of Motion Blur Direction and Motion Blur Length from Motion Blurred Image by Spectrum Analysis[J]. Microprocessors, 2011, 32(1): 59-63. DOI: 10.3969/j.issn.1002-2279.2011.01.017 |
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| Authors: | LIANG Yu ZHONG JIN-rong LIN JIA-yu |
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| Affiliation: | LIANG Yu,ZHONG JIN-rong,LIN JIA-yu(College of Science and Engineering,National University of Defense Technology,Changsha 410073,China) |
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| Abstract: | There are parallel zero beelines in the spectrum image of motion-blurred image,A arithmetic put forward to identify the blurring direction and blurring length.First the motion-blurred image will be divided into small pieces,we sum all the pieces.After the second differentiation of the piece by Laplacian,it's Spectrum can be obtained by 2D-FFT transform,then modify the binary of spectrum.At the last time,we detect blurring direction and blurring length by Radon transform.The practicabi1ity and veracity of ar... |
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| Keywords: | Motion blur Frequency spectrum Radon transform |
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