Image reconstruction of electrical resistance tomography based on image fusion

Electrical resistance tomography (ERT) reconstructs internal resistance images of the field from electrical measurements on the surface. The temporal resolution of ERT data can be very high, but the spatial resolution of ERT is relatively low. Most ERT reconstruction algorithms calculate images independently, although different algorithms have their own advantages, which can be complementary to each other. In order to improve the image quality of ERT, an algorithm based on wavelet fusion method is proposed. Both simulation and experimental results demonstrate that the proposed method can improve image quality obviously.