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Figure 4 | BMC Bioinformatics

Figure 4

From: Signal extraction from movies of honeybee brain activity: the ImageBee plugin for KNIME

Figure 4

Clustering and Postprocessing. a) Induced clustering, where each pixel is assigned to the row of S (see Figure 3) where it has the highest coefficient. b) Visualisation of the signal refinement procedure in postprocessing. The movie matrix is projected onto the top-two signals, t(0), t(1) T. Every black dot corresponds to a time series (pixel), and all time series that have been selected into T are shown as red dots. After averaging over the time series in the coloured areas, signals are shifted from t(0) to the mean t ^ ( 0 ) and from t(1) to the mean t ^ ( 1 ) c) Glomerular map: Induced clustering based on Ŝ, i.e. after postprocessing. Pixels that do not participate in any mean signal are set to white.

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