一种基于小波分解和分水岭变换的视频对象自动分割算法

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1、263
Vol.26No.32005
3JournalonCommunicationsMarch2005
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2、ST211AMWX'-YZRS0['678]^L>?@]^_JTN911.21A1000-436X(2005)03-0007-07Automaticvideoobjectextractionalgorithmbasedonwaveletandwatershed123YANGGao-bo,ZHANGZhao-yang,YUSheng-fa(1.CollegeofComputerandCommunication,HunanUniversity,Changsha410082,China

3、;2.SchoolofCommunicationandInformationEngineering,ShanghaiUniversity,Shanghai200072,China;3.SchoolofElectronicScienceandEngineering,NationalUniversityofDefenseTechnology,Changsha410073,China)Abstract:Aspatio-temporalvideoobjectsegmentationalgorithmwasproposed.Temporalsegme

4、ntationwasbasedonchangedetection.Itskeywastheselectionofappropriatethreshold,whichwasobtainedbyhistogramanalysis.Forspatialsegmentation,discretewavelettransformwasfirstconducted,andthenwatershedwasperformedonthelow-resolutionimage.Aregion-basedclassificationschemewasutiliz

5、edtofusethetemporalandspatialsegmentation.Theproposedapproachcangetridoftheinfluencebynoiseandeffectivelyovercomethe“over-segmentation”.ExperimentalresultsdemonstratethatitcanachievemoredesirableresultsthanCOST211AM.Keywords:videoobjectextraction;discretewavelettransform;r

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