Signature Verification
Signature Verification
Signature Verification
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Smoothing• A one dimensionalGaussian filter is used inboth the x and ydirections– Small changes in the signalare smoothed out while theoverall structure is kept• Each segment betweencritical points is smoothedseparately in order toretain their absolutepositionsxfilteredtfi==2σ∑i=−2σwheree2σ∑j=−2σi−2σe2f2i2j−2σ2*xorigt+i