Patent ID: 11948229
Assignee: MITSUBISHI ELECTRIC RESEARCH LABORATORIES, INC.
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 14:
15. The tomographic imaging method of claim 11, wherein the optimization problem for the computational domain subject to the boundary conditions governed by the stored cross-domain and residual measurement operators is converted to another optimization problem having free space boundary conditions that is solved to reconstruct the image of the unknown internal structure of the object, and wherein the conversion further comprises:
synthesizing a background wavefield at each grid point in the background domain and measurements of the background wavefield at the receiver, resulting from a propagation of the incident wavefield into the background domain with the known internal structure of the inhomogeneous reflectivity background medium; and
computing simultaneously a difference wavefield along with the unknown internal structure of the object by forming a difference partial differential equation (PDE) operator that discretizes a PDE describing an interaction between the cross-domain operator, the residual measurement operator, the measurement operator, the Green's function operator, the incident wavefield, the background wavefield, the difference wavefield, and the unknown internal structure of the object.