A D-bar Algorithm with A Priori Information for Electrical Impedance Tomography
For practitioners of electrical impedance tomography, this method enhances the practical utility of the D-bar algorithm by improving image resolution through prior knowledge.
The paper presents a method to incorporate a priori information into the 2-D D-bar algorithm for electrical impedance tomography, demonstrating significant improvement in spatial resolution across numerical examples with and without noise.
A method for including a priori information in the 2-D D-bar algorithm is presented. Two methods of assigning conductivity values to the prior are presented, each corresponding to a different scenario on applications. The method is tested on several numerical examples with and without noise and is demonstrated to be highly effective in improving the spatial resolution of the D-bar method.