I. Introduction
Electrical resistance tomography (ERT) is a popular electrical tomography (ET) technique and is widely applied in many research fields [1]–[14]. Capacitively coupled electrical resistance tomography (CCERT) is a contactless ERT technique. Compared with the conventional ERT which uses contact measurement, the electrodes of CCERT are not in direct contact with the measured fluids. The negative effects of contact measurement (polarization and electrochemical corrosion) can be avoided. However, the relevant image reconstruction research for this relatively new technique is not sufficient [15]–[19].