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Plant Classification from Bat-Like Echolocation Signals

Figure 5

Classification performance of four classification tasks when using partial data of the spectrograms for classification.

Each pixel represents the performance when using a square from the spectrogram with a frequency band of 5 kHz and time duration of 5 ms. The color denotes the area under the ROC curve (AUC) when classifying using only this square of information from the spectrograms. The classification tasks presented are: (A) Spruce vs. the rest; (B) Blackthorn vs. the rest; (C) Beech vs. the rest; (D) Corn field vs. the rest.

Figure 5