资源描述：
《A Quaternion Framework for Color Image Smoothing and Segmentation 》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。
1、IntJComputVis(2011)91:233250DOI10.1007/s11263-010-0388-9AQuaternionFrameworkforColorImageSmoothingandSegmentationÖzlemN.Subakan·BabaC.VemuriReceived:3July2009/Accepted:16September2010/Publishedonline:18November2010©SpringerScience+BusinessMedia,LLC2010AbstractInthispaper,wepresentfeature/detailpre
2、serving1IntroductionmodelsforcolorimagesmoothingandsegmentationusingtheHamiltonianquaternionframework.First,weintroduceColorconveysessentialinformationthatcanbeemployedinanovelquaternionicGaborfilter(QGF)whichcancombinemanyvisiontasksincludingbutnotlimitedtoobjectrecog-thecolorchannelsandtheorienta
3、tionsintheimageplane.nition,tracking,segmentation,registrationetc.Withsignif-Weshowthatthesefiltersareoptimallylocalizedbothintheicantadvancesincomputingpowerandmemoryoverthespatialandfrequencydomainsandprovideagoodapprox-pasttwodecades,colorimageprocessinghasattractedmuchimationtoquaternionicquadr
4、aturefilters.UsingtheQGFs,interestintherecentpast.Inthisarea,colorimagedenois-weextractthelocalorientationinformationinthecolorim-ingandsegmentationarestillelusivechallenges.Duetotheages.Second,inordertomodelthisderivedorientationin-multichannelnatureofthecolorimages,thekeyissueishowtocoupletheinfo
5、rmationcontainedinthegivencolorformation,weproposecontinuousmixturesofappropriate(e.g.red,greenandblue)channels.Consideringeachindi-exponentialbasisfunctionsandderiveanalyticexpressionsvidualchannelofacolorimageasaseparatemonochromeforthesemodels.Theseanalyticexpressionstaketheformimage,theearlyap
6、proachesofteninvolvedcomponent-wiseofspatiallyvaryingkernelswhich,whenconvolvedwithaapplicationofthetraditionalgrayleveltechniquesoneachcolorimageorthesigneddistancefunctionofanevolvingchannelseparately.However,thisapproachfailstocapturecontour(placedinthecolorimage),yieldadetailpreservingtheinher
7、entcorrelationbetweenthecomponentsandresultssmoothingandsegmentation,respectively.Severalexamplesincolorartifactsorblending.Toavoidthis,colorimageonwidelyusedimagedatabasesareshowntodepicttheper-processingshouldb
