Voxel-based classification of seismic imaging methods
Based on the RTH-approach we can design a new voxel-based classification of all seismic imaging methods. From the point of view of the mechanism for creating seismic images, the RTH method has a fundamental difference from all previous methods of time and depth migration, such as Kirchhoff migration, PSTM, PSDM, RTM, CSPD, etc.
This difference is concluded in other — statistical principles of imaging of scattering medium.
The new voxel-based classification of the seismic imaging methods is based on the next principals:
- If a method operates only with amplitude of wave for image of properties at each voxel of medium, then it can be called scalar-based method (PSDM, PSTM, CSPD, etc.).
- If a method uses both amplitude and phase of acoustic wave, then these method can be called vector-based method (RTH) and finally,
- if a method uses tensor information of elastic medium, then this type of seismic imaging method can be called tensor-based method (Tensor Reverse Time Holography — TRTH).
Figure : New voxel-based classification of the seismic imaging methods