Figure 4 | Scientific Reports

Figure 4

From: Space division multiplexing in standard multi-mode optical fibers based on speckle pattern classification

Figure 4

(a) Plots the total classifier error rate against the number of speckle intensities sampled from each of the recorded images. The classifiers’ outputs on the validation set are shown when (b) 4 samples (c) 6 samples are used to classify the speckle patterns. These outputs are grouped and color-coded according to the target output (either T = 1 or T = 0). The dashed horizontal line represents the decision threshold used to recover the input states: si = 1 for classifier outputs above threshold, si = 0 below threshold.

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