欢迎来到天天文库
浏览记录
ID:36501726
大小:1.31 MB
页数:44页
时间:2019-05-11
《基于动态阈值的图像显著区域层次检测方法》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、北京交通大学硕士学位论文基于动态阈值的图像显著区域层次检测方法姓名:葛涛申请学位级别:硕士专业:计算机应用技术指导教师:须德20061201ABSTRACr.IIlresentyears,saIientrc酉onsdetectionh弱becomeaextremelyactiVercsearchfield.Atprcsent,thereexistsomemechodsforsalientre百onsdetection,suchas:ConImst.baSedimagcattenIionanalys
2、isbyusingfIIzzygrowin舀SVM.basedsaljentre百on(s)extradionmeIhodforimagerctrieval,andsoon..ThesemethodsgcnemlIydealwithpenin6ncc锄0ngtheinvolvedpjxelsinordertofIllfiUourgoalofsaIientrc百onsdetection.But,thesemethodsignorethereIationshipamongpixels,andcanno
3、tproVidesalisfyingresuIts.Thisdissertationimpmvesthemodelfordetectingsalient比百onsbasedonIayers.W毫firstdiVidetheimageintolayers.Andfor“erylaycr'wecaIculatesaliency,alldIhenaddlhercsultsofcveryIayeLWbusedyn锄icthrcsholdtoextractsalientrc百on&Forcverylaycr
4、'cxtmclsbasiccharacteristicsandcalcllIatessaIkncycharact丽sticsincludingintensitysaliency;saturationsaliencyandcolorsaIiency:Andthen,wesyIlthesizeandanalyzecverycharaI。teristict0eliminatethee疵c【ofnoisepixelsonsalientre百onsdetection.Becauscofthepossibil
5、itychamcteristicsofimages,theplanarno肺aldistribulionfllnclioncantakecha唱eofthcpeninenceOfpixelsaccIImtelyandrcasonably.T1lisstepisthekeyofsalientre沓onsdetection.Ononehand,itcanmakesaHentre西onsdctectiOncoherenny.Ontheothcrhand,itcantakethepcrtinenccofp
6、i】‘elsintoconsiderationandeliminatethee丘.ectofnoisepixelsonsaIientre西onsdetection.WeaddtheresuItsoflayers.Outofconsiderationofthestatisticsfeaturc,weusethedynamiclhrcshold,andthenrcachlhefillalsaliencyrcgiolls.1’lledynamicthrcsholdtendstoadaptwelIgett
7、ing瑚ofthee虢ctoftheori百nalimagcs.weapplythismethodtorcalimages,andfinaIlygetasatisfyingresult.KEYWORDS:salientrc舀on,saliencycharacIeristic’Visualattcntion,dynamictlIresholdCLASSN0:口391致谢在北京交通大学三年的硕士学习生活即将结束,在这段难忘的日子里,除了得到家人朋友的鼓励和支持以外,最大的收获是我有幸遇到很多良师益友。
8、在此对他们表达我最诚挚的感谢!首先,我要将最诚挚的谢意献给我的导师须德教授,感谢他在我的研究生学习期间给予了我学业上的谆谆教导和生活上无微不至的关怀。须老师是一位有着渊博的知识、严谨的治学态度,创新的思想、谦逊的作风和平易近人性格的导师。三年来,导师的言传身教不仅使我在学业上受益匪浅,而且还让我学会了不少为人处事的真谛。在本文的撰写过程中,须老师给予了我大量的鼓励和指导,使我得以顺利完成学业,并提高了独立学习和科研能力,为今后的继续学习乃至工作打下了坚实的基础。值此论文完成之际,我
此文档下载收益归作者所有