Mojette变换及其应用

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榆、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 and Its Applications to Image Processing

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 freely,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.