This lets you image faint signals with the highest sensitivity. The first step in the flow is to produce an approximate reflectivity migrated image. The inversion result shows better spatial resolution and more balanced amplitudes than the migration result. LSM has emerged as new standard in high-end imaging, providing the level of resolution and amplitude fidelity necessary for prospect risk mitigation, reservoir characterization and well planning. The kappa coefficient is the measure of the classifier execution from the position error. The following figure illustrates the effect of using grid masks for the LSM computation.
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ZEISS LSM 980 with Airyscan 2
Thus, it is appropriate for a high-resolution radar picture. Least-squares matching LSM is a traditional photogrammetric technique for establishing the correspondence of aerial or terrestrial images taken from different view points. In most region-based level set approaches, the region descriptor is only constituted by color intensity, which is insufficient to describe those images whose objects have similar color intensity to that of the background. The major industry focus on the presalt hydrocarbons requires precise seismic imaging to minimize uncertainties in reservoir definition. The main limitations are attributed to incomplete acquisition and variable illumination beneath a complex overburden i.
least-squares solutions for better subsurface images | PGS