Research Article

Hybrid Topological Derivative-Gradient Based Methods for Nondestructive Testing

Figure 8

Reconstruction an object with space-dependent parameter . (a) True object (blue solid line) and initial guess (red dashed line). (b) True object (blue solid line) and its final reconstruction (red dashed line) at the ninth iteration with respect to the domain. (c) True function . (d) Final reconstruction of .
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