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Simulated Human Vision..... Ian Overington

Location: Eastbourne. UK
ianoverington@simulatedvision.co.uk ............ www.simulatedvision.co.uk

By comparison, the edge detection from the human visual system - by a sequence of gross blurring of the incoming image by the eye lens, followed by sampling by a roughly hexagonal matrix of retinal receptors prior to a Laplacian-like local differencing, all as simulated by SHV - when viewed at X10, is as seen to the right. The edge location and orientation for each sensed location are shown as short bars.

For completeness, a X10 magnification overlay of the edge data derived from SHV on a ‘ghost’ X10 image of the original disc is shown to the left.

Edge Detection (cont.)

Continued

For further demonstrations of the sub-pixel edge detection capabilities, see rather more complex shape analyses under demonstrations of optical flow, stereo & curvature.