Borehole imaging system is used to collect well-bore information in an azimuthal range of 360 degree, which helps people define the characterize features such as fractures and folds[1]. Historically, acquiring borehole image logs of useable resolution have been difficult[2] expecially in the non-conductive oil based mud systems because the measurement technology being used to deliver these services involves passing electric current through a conductive borehole fluid[3]. Electromagnetic (EM) propagation characteristic provides more flexibility for imaging tools to work in non-conductive fluid[4]. Mehdi Hizem[5] introduced a dielectric logging tool based on dielectric-dispersion measurement method in 2008. It provides more accurate radial profile of the near-borehole region in heavy-oil reservoirs. However, borehole measurement at discrete frequency points may still limit the resolution, accuracy and information integrity.