A new take on FWI: wavefield reconstruction inversion
Presented at the EAGE Conference & Exhibition 2014, Amsterdam
We discuss a recently proposed novel method for waveform inversion: Wavefield Reconstruction Inversion (WRI). As opposed to conventional FWI – which attempts to minimize the error between observed and predicted data obtained by solving a wave equation – WRI reconstructs a wave-field from the data and extracts a model-update from this wavefield by minimizing the wave-equation residual. The method does not require explicit computation of an adjoint wavefield as all the necessary information is contained in the reconstructed wavefield. We show how the corresponding model updates can be interpreted physically analogously to the conventional imaging-condition-based approach.
|European Association of Geoscientists and Engineers|
|Mathematical Aspects of Discrete Tomography|
|EAGE Conference & Exhibition 2014|
van Leeuwen, T, Herrmann, F.J, & Peters, B. (2014). A new take on FWI: wavefield reconstruction inversion. In Proceedings of 76th EAGE Conference & Exhibition 2014 (0). European Association of Geoscientists and Engineers.