Image recognition and classification by Bahram Javidi

By Bahram Javidi

Annotation creation; linear filters for development acceptance; nonlinear filtering for snapshot reputation; distortion invariant trend attractiveness platforms; photograph popularity in accordance with statistical detection idea; neural networks dependent computerized aim popularity; hyperspectral computerized item acceptance; laser radar computerized aim acceptance; radar signature acceptance; wavelets for photograph popularity; development attractiveness for anticounterfeiting and safeguard structures; functions of development acceptance suggestions to street signal attractiveness and monitoring; optical and optoelectronic implementation of linear and nonlinear filters

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We also attempted to modify the PCA transformation layer with Eq. (20), where the Qprop and GHA were applied simultaneously. The resulting improvements of the same PCA setups are shown in Fig. 18. Comparing the corresponding curves in Figs. 17 and 18, we found that the GHA appeared Figure 17 Clutter rejection performance of PCAMLP were enhanced by optimizing the PCA layer using the Qprop algorithm only. Neural-Based Target Detectors 27 Figure 18 Clutter rejection performance of PCAMLP were enhanced by optimizing the PCA layer using Qprop and GHA algorithms simultaneously.

Comparing setup a and b in Table 1, we can see that the MW band performed better than the LW band when a moderate number of 5–30 projection values were fed to the MLP. For both setups, the peak performance was achieved with 20 MLP inputs. Although their peak hit rates for the training set are somewhat comparable, the MW leads in the testing performance by 5–8%. Therefore, the MW sensor seems to be the better candidate than the LW, if we have to choose only one of them for our clutter rejector. It should be noted that this conclusion may apply only to the specific sensors used for this study.

The detection performance of these PCAMLPs for the training and testing sets are presented as ROC curves shown in Fig. 22. Compared to Figs. 20 and 21, the ROC curves in Fig. 22 were changed significantly from those in Fig. 21. Only setup a appeared to benefit from this GHA–Qprop-optimization, whereas all the other setups suffered deteriorations in performance. For the first time, setup a outperformed other setups as a target detector, even though it was limited to low false-alarm regions of the ROC curves.

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