Figure 8From: Application of the topological derivative to post-processing infrared time-harmonic thermograms for defect detectionTopological derivatives on \(\varGamma _{\mathrm{front}}\) for a single experiment. Left: topological derivative corresponding to \(\omega =0.8\mbox{ Hz}\). Right: topological derivative corresponding to \(\omega =2\mbox{ Hz}\). Any possible detection of the defects is due to cognitive biasBack to article page