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Updated: Jul 18, 2026

A Basic Positron Emission Tomography System Constructed to Locate a Radioactive Source in a Bi-dimensional Space
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A Basic Positron Emission Tomography System Constructed to Locate a Radioactive Source in a Bi-dimensional Space

Published on: February 1, 2016

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使用非局部平均算法对马射线图像进行噪声水平和无参考评估,使用CZT光子计数半导体探测器检测器进行非局部平均算法

Youngjin Lee1

  • 1Department of Radiological Science, Gachon University, 191, Hambakmoero, Yeonsu-gu, Incheon, Republic of Korea.

Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine
|December 10, 2024
PubMed
概括

这项研究引入了一种非局部平均 (NLM) 算法,用于增强玛射线成像,使用薄的电 (CZT) 光子计数半导体探测器 (PCSD). NLM算法显著提高了空间分辨率和图像质量,提供了一个具有成本效益的解决方案.

关键词:
CZT光子计数半导体探测器检测器马射线成像成像技术蒙特卡洛模拟的蒙特卡洛模拟非局部意味着降低噪音的方法.图像质量的定量评估 图像质量的定量评估

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Determination of Crystal Structures01:29

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In the late 1800s, the revelation that light extended beyond visible wavelengths led to the discovery of X-rays by Wilhelm Roentgen. Recognized as high-energy electromagnetic radiation with short wavelengths, X-rays prompted exploration into their interaction with crystals. Max von Laue proposed in 1912 that the periodic arrangement of atoms, ions, or molecules in crystals would cause them to diffract X-rays, a hypothesis confirmed through experiments with copper sulfate and zinc sulfide...