資源描述：
《基于活動(dòng)輪廓模型和顯著圖的自然圖像分割研究》由會(huì)員上傳分享，免費(fèi)在線閱讀，更多相關(guān)內(nèi)容在學(xué)術(shù)論文-天天文庫(kù)。
1、八bstl日etAbstfaCtImagesareanimPortantmethodtogetandexehangeinformationforhumanbeings.IntheeomPuterfield，themainPurposeofdigitalimageProeessing15togetobjeetiveinformationandestablishtherelevantdeseriPtionoftheimagebyanalyZingobjeetsintheimage·Imagesegmentation15afondamentalco
2、mPutervisionteehnologyandabasiePremiseforimageanalysisandPattemreeognition.DuetonaturalimagesarevulnerabletoeomPlexbaekgroundalldirregularehangeofillumination，it15diffieulttoobtainstableseglllentatio一飛results.Intheimagesegllentationarea，togetanaeeuratedeseriPtionofimage，5ob
3、jeetshavebeenstudiedforlongtime.Generally，animageeontains11飛formationoftexture，eolor，Profileandothers，whiehmea一15thatinthesegmentationProeessweshouldeonsidertlleloealandglobalfaetors.Basedonreviewandeoneludetherelevantdomestieandi一:ternationalliteratures，wehavedoneaseriousr
4、esearehandanalysisaboutimagesegmentationaPProaehes.Then，we11aveexPlainedexistProblems，baekgroundandsignificaneeofnaturalimagesegmentation.AccordingtothecharaeteristiesofnaturalimagesanditsownsPeeialneeds，adetailedstudyofimagese鄉(xiāng)11entationmethodwhieh15basedonaetiveeontourmod
5、elandameehanisxnofvisualattexltioxlallalysishavebeendone.Levelsetmodel15sensitivetonoiseandPronetofalseedges，whiehleadtostoPevolutionbeeauseofeurveevolutionintoaloealoPtimumandissuesofunevenregionandsensitivityofinitialeontour.Affectedbyaetiveeontourmodelbasedonregion，wePro
6、PosedanimProvedgeometrieactiveeontourmodelwhiehintrodueesthewholeregionasadrivingforeeintoenergyfonetion.Thismodelusesstatistiealinformation一driveneurveevolutionwhichwilleffeetivelyProteettheboundaryinformationandmaketheeurveevolutionstoPattheboundaryPositionwhiehleadstoimP
7、rovetheseglllentationaecuracyatcertainextent.SineethewholeevolutionProeessdoesnotrequirere一initializationanddoesnotneedtoealeulatethesigneddistaneefunetion，theealeulation15greatlyredueed.Thesegn飛entationresultswillbedifferentwhenweusedifferentinitialsegmentationPositioninth
8、atthemodel15vulnerabletotheinitiallevelsetcontourPosition，Iftheinitialeontoureanad
