d. improved image quilting

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1、ImprovedImageQuiltingJeremyLongDavidMouldDepartmentofComputerScienceDepartmentofComputerScience.UniversityofSaskatchewanUniversityofSaskatchewanjsl847@mail.usask.camould@cs.usask.caFigure1:ImageQuilting(left)andImprovedImageQuilting(right).ABSTRACTsearchdoneinthisarea,wefocusveryspecificallyonthed

2、omainwhereourcontributionismostrelevant.Assuch,ouremphasisInthispaper,wepresentanimprovementtotheminimumer-isonpatch-basedsynthesisandonpreviousmethodsforavoidingrorboundarycut,amethodofshapingtexturepatchesfornon-boundaryartifactsalongtheseamsofthepatches.Wealsosurveyparametrictexturesynthesisfr

3、omexamplealgorithmssuchasEfrosseveralotherdomainswhereimprovementstotheminimumerrorandFreeman’sImageQuilting[4].Ourmethodusesanalternateboundarycutmightprovefruitful,suchasWangTiles[13,14].distancemetricforDijkstra’salgorithm[3],andasaresultweareOncewehaveabackgroundforcomparison,wethendescribeab

4、letopreventthepathfromtakingshortcutsthroughhighcostthealternatenon-scalardistancemetricthatourimprovedimageareas,ascansometimesbeseenintraditionalimagequilting.Fur-quiltingalgorithmuses.Thismetricencouragespathstoavoidpeakthermore,ourmethodisabletoreduceboththemaximumerrorincostareas,evenifitmea

5、nstakinglongcircuitousroutes.Weshowtheresultingtextureandthevisibilityoftheremainingdefectsbyinthispaperhowthispropertyisdesirablefortexturesynthesisspreadingthemoveralongerpath.Post-processmethodssuchasandotherapplicationswheretheminimumerrorboundarycutispixelre-synthesis[9]caneasilybemodifiedand

6、appliedtoourapplied.Wealsoshowhowthismetriccanbeapproximatedtofitminimumboundarycuttoincreasethequalityoftheresults.withauser’spreferences.Finally,wecompareresultsobtainedusingseveraldifferentKeywords:ACMclassification:1.3.7:Three-Dimensionalmethodsforshapingthetexturepatches.WefindthatourmethodGrap

7、hicaandRealism,1.4.7FeatureMeasurement,texture,non-tendstoavoidthemostgrievousdiscontinuities,bothbecauseitparametrictexturesynthesisfromexample,minimumerrorbound-activelydecreasesthemaximumerroralongtheboundarycutanda