一种三维有限Radon变换

Mustapha Boukour, A. E. Omri
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引用次数: 1

摘要

本文致力于FRT(Finite Radon Transform)在三维情况下的推广。提出了一个简单的公式,证明了它是连续离散Radon变换的精确离散化。更准确地说,当在规则网格上给出采样时,即通过箱函数的平均值对连续函数进行滤波时,情况就是这样。给出了该变换和离散傅立叶变换的关系,对数值实现有一定的帮助。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
A 3D Finite Radon Transform
The present work is devoted to the development of the extension of FRT (Finite Radon Transform) to the tridimensional case. One simple formulation is proposed and it is shown that it is the exact discretization of the continuous Discrete Radon Transform. More precisely this is the case when the sampling is given on a regular grid i.e. the continuous function is filtered by the mean of the box function. Relation of this transform with the Discrete Fourier one is given and is for some help in numerical implementation.
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