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Figure 2 | BMC Neuroscience

Figure 2

From: Statistical model of natural stimuli predicts edge-like pooling of spatial frequency channels in V2

Figure 2

Basis vectors of Experiment 1. Random selection of learned basis vectors a i when the complex cells are all in a single frequency band. ICA non-linearity g was the tanh nonlinearity g1. Each patch gives the coefficients of one higher-order feature. Each ellipse means that the complex cell in the corresponding location and orientation is present in the higher-order feature, brightness of ellipse is proportional to coefficient a ki .

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