Smart Simplification of Anthropomorphic Head Phantom Aimed for Microwave Imaging

Abstract

In this paper we study the numerical modeling of the complex anthropomorphic human phantoms, aimed for microwave imaging, using the WIPL-D software. By comparing various models, we investigate the influence of the geometrical simplification of the phantom on the accuracy of the electromagnetic response of the antennas in the vicinity of the phantom. By controlling the geometrical deviation of the simplified model with respect to the original model, we show that it is possible to reduce the simulation resources for one to two orders of magnitude while preserving the precision of the electromagnetic analysis.

New Method for Calculation of Average Electric Properties of Reference Head Phantom in Microwave Imaging

“…The phantom was initially defined using an immensely refined triangular STL mesh. In order to obtain a numerically efficient model, we reduced the beginning number of triangles using a controlled decimation [15]. Such triangular phantom is then converted to a quadrilateral mesh for better numerical efficacy.…”

Numerical Wideband Anthropomorphic Phantom for Biomedical Microwave Imaging

“…Future works will focus on the reduction of the high-computational cost of the microwave imaging algorithms, in order to introduce such anthropomorphic models in inverse scattering solvers such as that developed in [13]. Work on the optimal mesh and simplified phantom design will be preliminary [14]. The use of the multi-incidence and/or multi-view measurements as well as the introduction of contours as a priori information in the scattering solver in order to improve the resolution of the microwave images will also be investigated.…”