基于TTLS正则化方法的超声层析图像重建  

Ultrasonic Tomographic Image Reconstruction Based on TTLS Regularization

作　　者：刘玉[1,2] 王浩全[1,2] 张秀林[1,2] 安然 

机构地区：[1]中北大学仪器科学与动态测试教育部重点实验室 [2]电子测试技术国家重点实验室,山西太原030051

出　　处：《电视技术》2013年第7期114-116,共3页Video Engineering

基　　金：山西省自然科学基金项目(2011011015-2)

摘　　要：在矩量法基础上,通过波动方程的求解把泛函方程转换为代数方程。变形Born迭代算法解决了方程的非线性问题;TTLS正则化解决了解的稳定性。实验表明,运用空间域的层析成像方法,迭代过程中的计算量减少了,算法的应用范围得到了拓宽,在较强散射的情况下,反演较高的对比度。On the basis of researching the method of moment, the functional equation is converted to algebraic equauon Dy solving me wave equauul,. The distorted Born iterative algorithm is used to solve the equation of nonlinear problem, and the stability of the solution is solved by using the truncated total least squares regularization method. Experimental results indicate that the above methods can be applied to the strong scattering field, can inversion high contrast and also have higher image quality.

关 键 词：超声层析成像 变形Born迭代 截断完全最小二乘法 

分 类 号：TN911[电子电信—通信与信息系统]