?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=Computation+of+Smooth+Optical+Flow+in+a+Feedback+Connected+Analog+Network&rft.creator=Stocker%2C+Alan&rft.creator=Douglas%2C+Rodney&rft.subject=Computational+Neuroscience&rft.subject=Machine+Vision&rft.description=In+1986%2C+Tanner+and+Mead+%5Ccite%7BTanner_Mead86%7D+implemented+an+interesting+constraint+satisfaction+circuit+for+global+motion+sensing+in+aVLSI.+We+report+here+a+new+and+improved+aVLSI+implementation+that+provides+smooth+optical+flow+as+well+as+global+motion+in+a+two+dimensional+visual+field.+The+computation+of+optical+flow+is+an+ill-posed+problem%2C+which+expresses+itself+as+the+aperture+problem.+However%2C+the+optical+flow+can+be+estimated+by+the+use+of+regularization+methods%2C+in+which+additional+constraints+are+introduced+in+terms+of+a+global+energy+functional+that+must+be+minimized.+We+show+how+the+algorithmic+constraints+of+Horn+and+Schunck+%5Ccite%7BHorn_Schunck81%7D+on+computing+smooth+optical+flow+can+be+mapped+onto+the+physical+constraints+of+an+equivalent+electronic+network.&rft.publisher=MIT+Press%2C+Cambridge&rft.date=1998&rft.type=Conference+Paper&rft.type=NonPeerReviewed&rft.format=application%2Fpostscript&rft.identifier=http%3A%2F%2Fcogprints.org%2F82%2F1%2Fnips98.ps&rft.format=application%2Fpdf&rft.identifier=http%3A%2F%2Fcogprints.org%2F82%2F5%2Fnips98.pdf&rft.identifier=++Stocker%2C+Alan+and+Douglas%2C+Rodney++(1998)+Computation+of+Smooth+Optical+Flow+in+a+Feedback+Connected+Analog+Network.++%5BConference+Paper%5D++++(In+Press)++&rft.relation=http%3A%2F%2Fcogprints.org%2F82%2F