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

Claim 5:
6. The tomographic imaging system of claim 5, wherein the optimization problem that is solved to reconstruct the image of the unknown internal structure of the object, further comprises:
an inversion operation inverting the PDE operator for an initialized current image of the internal structure of the object to determine a Jacobian of the scattered wavefield with respect to the current image of the internal structure of the object;
an update operation updating the current image of the internal structure of the object by minimizing a cost function between the measurements of the total wavefield and a total wavefield synthesized by combining the Jacobian of the scattered wavefield and a quasi-Newton descent direction of the cost function with respect to the image of the internal structure of the object; and
project the current image of the internal structure of the object onto a constrained total variation penalty function.