Efficient Sampling and Reconstruction of Traveltime Volumes for Kirchhoff Depth Migration

Abstract This study introduces a method for variable grid generation aimed at improving the efficiency of traveltime calculations in seismic imaging. The approach dynamically adjusts grid density based on interpolation error metrics, significantly reducing computational and storage demands while maintaining high precision. Numerical tests demonstrate the effectiveness of this method in optimizing grid configurations, thereby enhancing the overall performance of seismic imaging processes. The method's adaptability to varying subsurface conditions and its ability to maintain high accuracy make it a valuable tool for geophysical applications.