ERT Inversion with á Priori Information

In this work we propose a new way of introducing prior information regarding known resistivity distribution within the inversion procedure. Here the prior information is introduced as an extra term in the objective function of the resistivity inverse problem which is minimized via the lagrangian multiplier technique. The final inversion equation allows the introduction of prior information in a flexible way. The contribution of prior information to the final inversion result can be weighted depending on the reliability of prior information. The application of the new algorithm is demonstrated via synthetic and real examples.