| 旋转运动模糊的实时恢复 |
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| 引用本文： | 李仕,张葆,孙辉.旋转运动模糊的实时恢复[J].光学精密工程,2009,17(3). |
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| 作者姓名： | 李仕 张葆 孙辉 |
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| 作者单位： | 1. 中国科学院,长春光学精密机械与物理研究所,吉林,长春,130033;中国科学院,研究生院,北京,100039
2. 中国科学院,长春光学精密机械与物理研究所,吉林,长春,130033 |
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| 摘 要： | 提出了一种旋转运动模糊恢复算法,用来解决航空成像时旋转运动模糊的实时恢复问题.对旋转运动模糊这种具有异速像移的空间变化模糊进行了分析,并推导出旋转运动模糊的数学模型.用基于Bresenham画圆法的坐标转换方法将旋转圆弧上的空间变化模糊转变为常见的线性空间不变模糊,并使用一维维纳滤波对圆弧轨迹上的像素点进行模糊恢复.实验结果显示:本文算法在GPU处理平台下用3.31 ms即能恢复一帧1 024×1 024,8 bit旋转运动模糊图像,且极好地恢复了图像上的细节信息,恢复图像的峰值信噪比(PSNR)为28.76.算法的速度及效果表明本文所提出的算法具有较大的实用价值.
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| 关 键 词： | 航空成像 旋转运动模糊 空间变化模糊 实时恢复 |
Real-time restoration of images blurred by rotational motion |
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| LI Shi,ZHANG Bao,SUN Hui.Real-time restoration of images blurred by rotational motion[J].Optics and Precision Engineering,2009,17(3). |
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| Authors: | LI Shi ZHANG Bao SUN Hui |
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| Affiliation: | 1. Changchun Institute of Optics;Fine Mechanics and Physics;Chinese Academy of Sciences;Changchun 130033;China;2. Graduate University of Chinese Academy of Sciences;Beijing 100039;China |
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| Abstract: | A real-time image restoration algorithm is proposed for the images blurred by rotational motion during aerial imaging.According to the rotational motion with space-variant blur and different motion rates for image,this paper analyzes how the rotational motion is generated and derives a mathematical model of rotational motion.Then,the coordinate conversion based on Bresenham algorithm is applied to transform the space-variant blur on circular arc into the space-invariant blur on pixel lines and 1D Wiener fil... |
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| Keywords: | aerial image rotational motion blur space-variant blur real-time restoration |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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