简介:Isometric3Dshapepartialmatchinghasattractedagreatamountofinterest,withaplethoraofapplicationsrangingfromshaperecognitiontotexturemapping.Inthispaper,weproposeanovelisometric3DshapepartialmatchingalgorithmusingthegeodesicdiskLaplacespectrum(GD-DNA).Ittransformsthepartialmatchingproblemintothegeodesicdiskmatchingproblem.Firstly,thelargestenclosedgeodesicdiskextractedfromthepartialshapeismatchedwithgeodesicdisksfromthefullshapebytheLaplacespectrumofthegeodesicdisk.Secondly,GeneralizedMulti-DimensionalScalingalgorithm(GMDS)andEuclideanembeddingareconductedtoestablishfinalpointcorrespondencesbetweenthepartialandthefullshapeusingthematchedgeodesicdiskpair.TheproposedGD-DNAisdiscriminativeformatchinggeodesicdisks,anditcanwellsolvetheanchorpointselectionprobleminchallengingpartialshapematchingtasks.ExperimentalresultsontheShapeRetrievalContest2016(SHREC'16)benchmarkvalidatetheproposedmethod,andcomparisonswithisometricpartialmatchingalgorithmsintheliteratureshowthatourmethodhasahigherprecision.
简介:一直以来,买DVD光驱将DV转录成为DVD视频光盘是我的梦想,因为我希望将我生活中快乐的点点滴滴分享给我的每一位朋友。随着价格的下降,前不久我的梦想终于实现了,但问题也随之而来:我将刻录好的DVD视频光盘分别邮寄给了我四位最好的亲友,没想到的是,正当其中的两个人兴高采烈地向我问起DVD片中的各种细节时,另两位亲友却向我埋怨:“你的DVD放在我家的DVD光驱和DVD播放器里根本没反应!”