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In this paper, a method for evaluating the influence of noise on ultra-wide Bandwidth (UWB) based poles extraction is proposed. Three groups of tumors are chosen as the samples. Each group contains three tumor subcases with varying permittivities, conductivities or radii. White Gaussian noises with signal-to-noise ratios (SNRs) range from 25 dB to 50 dB are added with the tumor signals of each group...
Breast cancer has been one of the most common diseases which cause many women's death throughout the world. The early breast cancer detection is detecting the tumor when it is at early stage, which could help heal the patients and would not harm the women' s health. It is clear that the best way to control this disease is detecting it at an early stage. Ultra-wide band (UWB) microwave imaging is a...
In this paper, a 3-D realistic numerical breast model is developed from MRI images of a typical Asian woman's breast. The breast outline is identified by edge detection algorithm and the breast interior is segmented into several tissue types based on the gray value of the pixels. The electrical properties of normal breast tissues are chosen according to the measurement results. The derived model is...
Ultra-wideband (UWB) microwave imaging is a very promising method for the early breast cancer detection physically based on the large contrast of electromagnetic parameters between the malignant tumor and the normal breast tissues. In this study, the tumor detection in a two dimensional breast model with dispersive characteristic properties of the breast organisms is carried out numerically by the...
Ultra-wideband (UWB) microwave imaging is a very promising method for the early breast cancer detection physically based on the large contrast of electromagnetic parameters between the malignant tumor and the normal breast tissues. In this study, the tumor detection in a two dimensional breast model with hemi-elliptical configuration is carried out numerically. The influences from the skin, breast...
A study on the Ultra-Wideband (UWB) microwave imaging for detecting the malignant tumor in the human breast is presented. The planer two-dimensional breast model is used to simulate the microwave propagation in the breast by the Finite Difference Time Domain method (FDTD). The confocal algorithm is employed to reconstruct the breast image to show the tumor information involving its size and the location...
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