Research on Lung Electrical Impedance Imaging Method Based on Three-Dimensional Interpolation

At present, the electrical impedance tomography (EIT) technology of the lungs is mostly two-dimensional (2-D) imaging, and the three-dimensional (3-D) information of the lungs helps doctors make faster and more accurate diagnosis. However, the 3-D image reconstruction process of the lungs requires a lot of calculation and the imaging speed is slow. For this reason, this paper proposes an interpolation algorithm suitable for EIT irregular images. Firstly, the contour of the interpolated image is obtained. Secondly, the pixel values are interpolated through corresponding points. The effects of different interpolation algorithms are evaluated through experiments and simulations. The results show that the interpolation algorithm proposed in this paper is better than the traditional conventional image interpolation algorithm, and the lung image after interpolation is clearer.