Blar i NTNU Open på forfatter "Aaker, Ole Edvard"
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Computational and robustness improvements in waveform inversion
Aaker, Ole Edvard (Doctoral theses at NTNU;2022:313, Doctoral thesis, 2022) -
Elastodynamic full waveform inversion on GPUs with time-space tiling and wavefield reconstruction
Aaker, Ole Edvard; Raknes, Espen Birger; Arntsen, Børge (Peer reviewed; Journal article, 2020)Full waveform inversion (FWI) is a procedure used to determine the elastic parameters of the Earth by reducing the misfit between observed elastodynamic wavefields and their numerically modelled counterparts. The numerical ... -
Inverse Scattering Series internal multiple prediction through utilization of sparse transforms - Including high-performance implementational aspects
Aaker, Ole Edvard (Master thesis, 2018)Industry standard imaging algorithms do not treat internal multiples correctly. 'Cross-talk' with primary reflections may therefore occur in the imaging procedure, potentially causing significant artifacts in the image of ... -
Wavefield reconstruction for velocity–stress elastodynamic full-waveform inversion
Aaker, Ole Edvard; Raknes, Espen Birger; Pedersen, Ørjan; Arntsen, Børge (Peer reviewed; Journal article, 2020)Gradient computations in full-waveform inversion (FWI) require calculating zero-lag cross-correlations of two wavefields propagating in opposite temporal directions. Lossless media permit accurate and efficient reconstruction ...