一维非线性插值在重建B型超声图像中的应用  

The application of one-dimension non-linear interpolation inreconstruction of ultrasound B mode images

作　　者：周健[1] 钱进[1] 

机构地区：[1]东南大学无线电工程系,江苏南京210096

出　　处：《苏州大学学报（自然科学版）》2003年第2期55-58,共4页Journal of Soochow University(Natural Science Edition)

摘　　要：在传统超声图像重建的线性插值方法的基础上,提出了对非线性插值的研究,并将其运用到显示超声图像的模型中.先给出了两类非线性插值(三次多项式插值和自然样条插值)的基本原理,其次针对已存在的B型超声图像的数学模型,简化插值公式,最后给出了非线性插值与线性插值(R Theta)的对比结果,从而给出结论.Traditionally, ultrasound images are reconstructed by one of linear interpolation methods.Some nonlinear interpolation methods are disussed.The application to one of ultrasound images displaying model is also proposed.At first,Two types of nonlinear interpolation algorithm (3 order polynomial interpolation and natural spline interpolation) is given. Then,the algorithm is simplified so that they can be used in real math model of ultrasound B scan images. At last,the result of nonlinear and linear interpolation algorithms (RTheta linear algorithm) are compared,and some possible conclusions are drawn.

关 键 词：医学图像 B型超声图像 图像重建 非线性插值 三次多项式插值 自然样条插值 

分 类 号：R445.1[医药卫生—影像医学与核医学] TP391.41[医药卫生—诊断学]