简介：

简介：Compactlysupportedradialbasisfunctioncanenablethecoefficientmatrixofsolvingweighlinearsystemtohaveasparsebandedstructure,therebyreducingthecomplexityofthealgorithm.Firstly,basedonthecompactlysupportedradialbasisfunction,thepapermakesthecomplexquadraticfunction(Multiquadric,MQforshort)tobetransformedandproposesaclassofcompactlysupportedMQfunction.Secondly,thepaperdescribesamethodthatinterpolatesdiscretemotioncapturedatatosolvethemotionvectorsoftheinterpolationpointsandtheyareusedinfacialexpressionreconstruction.Finally,accordingtothischaracteristicoftheunevendistributionofthefacemarkers,themarkersarenumberedandgroupedinaccordancewiththedensitylevel,andthenbeinterpolatedinlinewitheachgroup.Theapproachnotonlyensurestheaccuracyofthedeformationoffacelocalareaandsmoothness,butalsoreducesthetimecomplexityofcomputing.