1·LSQR and ART algorithms are applied separately to calculate tomography for the underdetermined system of equation.
分别采用 LSQR 和 ART 算法对欠定方程组进行了层析成像计算。
2·Based on the analysis of basic principle of electrical capacitance tomography and the image reconstruction algorithm, a conjugate gradient algorithm with optimized regularization is proposed.
在分析电容层析成像基本原理和图像重建算法的基础上，提出一种结合正则化优化修正的共轭梯度算法。
3·A finite element simulation software is developed, which is used to calculate capacitance between electrodes and define the sensitivity distribution of 12 electrode capacitance tomography system.
用自开发的有限元仿真软件包模拟计算电极对间的电容值，确定12电极电容层析成像系统的灵敏场分布。
4·Finally, we give tomography processing results of experiment signals.
最后给出对实验信号的层析成像处理结果。
5·Acoustic tomography technique has a vast field for application in studying rock and soil mechanics and testing concrete quality.
声波层析成像技术在岩石力学研究、混凝土质量检测中有广阔的应用前景。
1·Objective to investigate the changes of the neurosensory retinal thickness in the macula in high myopia eyes by optical coherence tomography (OCT).
目的应用光学相干断层成像(oct)技术探讨高度近视眼黄斑视网膜神经上皮层厚度的变化。
2·Objective to measure the thickness of the neurosensory retina of macula by optical coherence tomography (OCT) in normal eyes to get criterion for clinical practice.
目的应用光学相干断层成像(oct)技术对正常眼黄斑区视网膜神经上皮层厚度进行测定。
3·Positron emission tomography (PET) is one of the most important applications in nuclear medicine and has become a powerful tool for scientific research.
正电子发射断层成像(PET)是核医学中最为重要的应用之一，也是科学研究的强有力的工具。
4·A new signal source for electric impedance tomography system is developed to improve the high-frequency performance and to reduce the noise level of the old one.
目的研制用于电阻抗断层成像系统的信号源，提高现有系统的高频特性，同时降低其噪声水平。
5·Objective: to assess the Reproducibility of the measurement of retinal nerve fiber layer (RNFL) thickness by optical coherence tomography on normal eyes.
探讨光学相干断层成像术检测正常人视网膜神经纤维层厚度的可重复性结果。