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Mojette变换及其应用 被引量：3

Mojette Transform and Its Applications to Image Processing
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摘要 Mojette变换是一种冗余变换,它可以将离散信号表示成有限个超平面的集合。根据这种冗余变换的多个投影之间具有相互独立的特性,可以对变换后的投影个数、投影角度、投影因子进行任意变化,来控制冗余度的大小。分析了Mojette变换的基本原理与变换的特点,并对Mojette变换在图像处理中的应用进行了详细讨论。分析表明,Mojette变换可以应用到图像抗误码传输、图像纹理特征分析、图像信息隐藏等方面,并具有良好的效果。 Mojette transform is one of redundant transform. The discrete signal can be transformed into a finite set of hyper-planes. Since the projections are independent from each other, the number of projections or the angles or the operators can be choosen free- ly, in order to control the ratio of the redundancy. The main features of the mojette transform and its applications for image coding and image analysis are discussed. The low complexity enables the direct and inverse transforms to be easily implemented and extended. Experiments prove that the mojette transform can play an important role in image representation, error robust image transmission, image information hiding techniques etc.
作者 计文平 沈兰荪
机构地区 北京工业大学信号与信息处理研究室
出处 《测控技术》 CSCD 2007年第3期68-71,共4页 Measurement & Control Technology
基金 国家自然科学基金(60472036 60402036) 北京市自然科学基金(4042008) 教育部博士点基金(20040005015) 武器装备预研基金(51434050105QT0101)
关键词 MOJETTE变换 图像编码 冗余变换 差错控制 特征提取 Mojette transform image coding redundant transform error control feature extraction
分类号 TP391.41 [自动化与计算机技术—计算机应用技术]
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参考文献10

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二级参考文献19

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测控技术
2007年 第3期

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