The visual stimulus is processed (convolved) by four linear Gabor filters. The icons on the top row show x-t slices of the 3D filters, while the bottom row shows x-y slices for each subunit. The signals from the left and right eyes fl1 and fr1 (even filters) and fl2 and fr2 (odd filters) are also inverted, and these positive and negative filter outputs are then half-wave rectified before being combined via addition or subtraction, and half-squared. The four resulting signals are then added to generate bde, the binocular disparity energy.

The raw signal (bde) is then offset, scaled and half-wave rectified (although the signal is typically already non-zero unless the scaling or offset has introduced negative values), and it is used to drive a Poisson spiking mechanism. The spikes are time shifted to simulate a neurobiological latency. See the model (.moo) files for the parameters that govern these computations.