【摘要】 基于电容和电阻层析成像技术中灵敏度矩阵非线性归一化方法,提出了电磁层析成像中使用线性归一化方法的不合理性,在推导出其解析解的前提下,建立了电磁层析成像技术中的新型归一化模型,并给出了新型灵敏度模型的归一化公式。比较了原始和新型模型对于灵敏度归一化的效果,并将新型归一化模型应用到图像重建中,比较了成像质量,用相关系数比较了两种模型和原图的相关度,得出了结论:新型灵敏度归一化模型更逼近原始灵敏度的变化趋势,采用新型模型重建图像的质量更高。更多还原

【Abstract】 According to new sensitivity normalizations of electrical impedance and electrical capacitance tomography,the irrationality of linear normalization of sensitivity matrix of electromagnetic tomography is proposed.The new sensitivity normalization model is established based on the analytical formula in electromagnetic tomography.The formula of the new sensitivity normalization is given.The normalization effect of new model is compared with the original The new sensitivity normalization is applied to the image reconstruction,and evaluated the image quality using the criterion correlation.It is conclusion that the new sensitivity normalization model is more close to the original trend and got higher reconstruction image quality.更多还原