简介:LinearPhaseFIRFilteronMeasuring3-DSurface①WANGYunshan,YANGFujun,LIWei(ShandongUniversityofTechnology,Jinan250061,CHN)Abstract...
简介:InthispaperthedesignandimplementationofMulti-Dimensional(MD)filter,particularly3-Dimensional(3D)filter,arepresented.Digital(discretedomain)filtersappliedtoimageandvideosignalprocessingusingthenovel3Dmultiratealgorithmsforefficientimplementationofmovingobjectextractionareengineeredwithanexample.Themultirate(decimationand/orinterpolation)signalprocessingalgorithmscanachievesignificantsavingsincomputationandmemoryusage.Theproposedalgorithmusesthemappingrelationsofz-transferfunctionsbetweennon-multirateandmultiratemathematicalexpressionsintermsoftime-varyingcoefficientinsteadoftraditionalpolyphasede-compositioncounterparts.ThemappingpropertiescanbereadilyusedtoefficientlyanalyzeandsynthesizeMDmultiratefilters.
简介:Inthispaperweproposeathreedimensionalmultiplierlessdiscretecosinetransform(DCT)withliftingschemecalled3D-binDCT.Basedon3D-binDCT,anovelvideocodingalgorithmwithoutmotionestimation/compensationisproposed.Itusesthe3D-binDCTtoexploitspatialortemporalredundancy.ThecomputationofbinDCTonlyneedsshiftandadditionoperations,thusthecomputationalcomplexityisminimized.DCcoefficientprediction,modifiedscanmodeandarithmeticcodingtechniquesarealsoadopted.Extensivesimulationresultsshowthattheproposedcodingschemeprovideshighercodingefficiencyandimprovesvisualquality,anditiseasytoberealizedbysoftwareandhardware.