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A Based Bayesian Wavelet Thresholding Method to Enhance Nuclear Imaging

机译:基于贝叶斯小波阈值增强核成像的方法

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摘要

Nuclear images are very often used to study the functionality of some organs. Unfortunately, these images have bad contrast, a weak resolution, and present fluctuations due to the radioactivity disintegration. To enhance their quality, physicians have to increase the quantity of the injected radioactive material and the acquisition time. In this paper, we propose an alternative solution. It consists in a software framework that enhances nuclear image quality and reduces statistical fluctuations. Since these images are modeled as the realization of a Poisson process, we propose a new framework that performs variance stabilizing of the Poisson process before applying an adapted Bayesian wavelet shrinkage. The proposed method has been applied on real images, and it has proved its performance.
机译:核图像通常用于研究某些器官的功能。不幸的是,这些图像对比度差,分辨率差,并且由于放射性崩解而呈现波动。为了提高质量,医生必须增加注入的放射性物质的数量和获取时间。在本文中,我们提出了一种替代解决方案。它包含一个软件框架,该框架可增强核图像质量并减少统计波动。由于这些图像被建模为泊松过程的实现,因此我们提出了一个新框架,该框架在应用适应性贝叶斯小波收缩之前执行泊松过程的方差稳定化。该方法已应用于实际图像,并证明了其性能。

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