MRI图像信噪比提高技术

The Improvement of Signal-to-Noise Ratio in Magnetic Resonance Image

MRI图像处理技术是数字图像处理在生物医学工程中的重要应用 ,是数字图像处理技术与核磁共振成像相结合的产物 ,不仅推动了核磁共振成像技术进一步的研究与发展 ,同时也为数字图像处理技术提出了新的挑战。由于 MRI图像中的信息对医疗诊断特别重要 ,因此如何利用数字计算机与数字图像处理理论对被噪声污染的图像进行降噪处理便成为了 MRI图像处理的中心任务。本文主要分析了 MRI图像中的各种噪声源 。

Digital image processing and magnetic resonance imaging form magnetic resonance image processing technique. This technique will not only promote MRI's research and development, but also bring new challenges for digital image processing. Because the information in the MRI is very important to medical treatment, it is a primary task that how to decrease noise from MRI by use of PC and digital image processing. In this paper, we analyzed the noises from a variety of sources, and introduced all kinds of techniques to reduce these noises.