Ultra-wide band microwave image reconstruction for early breast cancer detection by norm constrained capon beamforming

被引:7
作者
Xu, Li [1 ]
Xiao, Xia [1 ]
Kikkawa, Takamaro [2 ]
机构
[1] Tianjin Univ, Sch Elect Informat Engn, Tianjin 300072, Peoples R China
[2] Hiroshima Univ, Res Inst Nanodevice & Bio Syst, Hiroshima 7398527, Japan
基金
中国国家自然科学基金;
关键词
UWB; Breast cancer detection; FDTD; PML; NCCB;
D O I
10.1016/j.mcm.2012.11.016
中图分类号
TP39 [计算机的应用];
学科分类号
081203 ; 0835 ;
摘要
In this paper, an efficient and robust image reconstruction algorithm for breast cancer detection by ultra-wide band microwave imaging system is presented. To test the efficacy of this approach, a three-dimensional model of the breast organisms is numerically carried out by the FDTD method. The PML absorption boundary condition is developed in the computer system. The norm constrained capon beamforming (NCCB) algorithm is employed to create the weighting vector for the image reconstruction. The tumor with the size of 3 mm in diameter detected successfully in the reconstructed image demonstrates the robustness of the beamforming algorithm. The study verifies the feasibility of detecting the small breast tumors by using the NCCB imaging algorithm. (C) 2012 Elsevier Ltd. All rights reserved.
引用
收藏
页码:403 / 408
页数:6
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