综述了常见的SPECT衰减校正方法，包括前、后校正法，本征法和迭代法。
This article is a review of different methods for attenuation correction in SPECT.
有助于系统理解不同的衰减校正方法，也对SPECT临床应用选择适当的衰减校正方法有所帮助。
It is also presented in what condition each method is more suitable to be applied. These should be helpful for correctly selecting an attenuation correction me...
最近的技术蓬勃发展，以下通过在强磁场，从而影响PET图像分辨率和衰减校正领域的改变正电子的运动技术障碍。
The technology recently blossomed following passing a technical hurdle of altered positron movement in strong magnetic field thus affecting the resolution of PET images and attenuation correction.
靶组织体积的计算受PET图像采集模式，散射校正方法，衰减校正方法，重建技术，图像显示模式，正电子药物等因素影响。
Many factors work on the target volume calculation, such as PET image acquisition mode, scatter correction, attenuation correction, reconstruction method, image display mode, positron pharmacy.
实验结果表明，该方法对特定的光纤传导系统的光谱非线性衰减有较好的校正效果。
It is proved that the method is fit for adjusting some optical fiber spectrum attenuation.
衰减系数的校正是磁共振波谱信号处理和分析过程中的一个关键难题。
Damping factor alignment is a key and difficult problem to the signal processing in magnetic resonance spectroscopy.
该方法首先对频率进行校正，然后拓宽CPCA的应用范围，把它使用到衰减系数偏移校正领域。
This method aligns frequency at first, then extends CPCA to the correction of damping factor shifts in a single resonant peak across spectra.
为了提高预报作业的精度，本文选用了衰减记忆最小二乘法对主要控制站进行实时校正。
In this paper the faded-memory least square method is applied on real-time correction and the variation of forgetting factors influencing on the accuracy of flood forecasting of the basin is studied.
为抑制计算机层析造影（CT）系统重建图像中出现的金属伪影，提高图像的质量，采用一种基于金属投影非线性权重衰减的方法进行校正。
A metal artifacts reduction method using nonlinear weights was developed to suppress metal artifacts in X-ray CT(computerized tomography) images to improve the image quality.
该算法利用三个不同的采样起点通过校正的方法来消除衰减分量对计算结果的影响，同时利用递推原理减少计算量，从而实现对短路电流的实时计算。
This paper provides a mathematical model of real-time calculation for the simple AC circuit, and designs a programming scheme to fulfill this model in computer with Java language.
该算法利用三个不同的采样起点通过校正的方法来消除衰减分量对计算结果的影响，同时利用递推原理减少计算量，从而实现对短路电流的实时计算。
This paper provides a mathematical model of real-time calculation for the simple AC circuit, and designs a programming scheme to fulfill this model in computer with Java language.
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