欢迎来到天天文库
浏览记录
ID:36359325
大小:3.69 MB
页数:67页
时间:2019-05-10
《基于分形理论的图像压缩与插值技术研究》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、华南理工大学硕士学位论文基于分形理论的图像压缩与插值技术研究姓名:董江申请学位级别:硕士专业:通信与信息系统指导教师:叶梧20040501AbstractWiththedevelopmentofmultimediaandtelecommunicationtechnology,digitalimage,whichhasenormousdataquantity,restrictsimagecommunication.Effectiveencodingtechnologiestoobliterateredundancyandretaintheimagequalityarethefocusofres
2、earch.Fractaltheoryisoneofthemostactivebranchesofnon—linearfieldintheword.Becauseofitspotentialhighcompressionrateandhighsignaltonoiseratio,fractalimagecompressiontechnology,whichusestheself—similarcharactertocompressimage,hasreceivedmuchmoreattentionpaidbyresearchfellows.BasedonthetheoryofJacquin’
3、Spartitioningfractalimagecompression,thethesisfocusesontheresearchandimplementationoftheimagecompressionencoding—decodingsystem,andfurthermoreproposesaserialofimprovedmethods,aimingatsomedeficiencyinthetraditionalpattitioningalgorithms.Thispartincludesisometricsstatisticalcharacteranditssimplifiedm
4、atching,acceleratingmethodinfractaldecodingconvergence,MSEmatchingalgorithmbypartlyBOn—compressionmapping,methodofdomainblocksfrommeancompressonimage,rangeblocksself-adaptiveoverlappingalgorithmtoeliminatetheblockeffectcausedbybiggersizeofrangeblockpartitioningandthediscussionofthedecodingqualityaf
5、fectedbythesizeofrangeblockpartitioning.Toavoidtheimageblurandblockeffectintheareaofimagetexture,edgeandthefieldwithbiggercontrast,thethesisproposesastochasticBrownianinterpolationalgorithminthefractMedgebasedonthepartitioningfractalcompressiontheory.Experimentresultsshowthatallthesealgorithmsandme
6、thodsareusefulandvalid.Finally,thisthesisraisestheconclusion;furthermoreresearchaimandtheprospectoftheproject.OurworkissponsoredbyGuangdongIndurtrialKeyResearch2002A1030405·KeywordsFractal;IteratedFunctionSystem;FractalBrownianMotion;InterpolationⅡ华南理工大学学位论文原创性声明本人郑重声明:所呈交的论文是本人在导师的指导下独立进行研究所取得的研究成
7、果。除了文中特别加以标注引用的内容外,本论文不包含任何其他个人或集体已经发表或撰写的成果作品。对本文的研究做出重要贡献的个人和集体,均己在文中以明确方式标明。本人完全意识到本声明的法律后果由本人承担。作者签名:等日期:20oi拜舌月/石日学位论文版权使用授权书本学位论文作者完全了解学校有关保留、使用学位论文的规定,同意学校保留并向国家有关部门或机构送交论文的复印件和电子版,允许论文被查阅和借阅。本人授权华南理
此文档下载收益归作者所有