基于邊緣保持的偏微分方程圖像復原方法研究.pdf

1、廈門大學碩士學位論文基于邊緣保持的偏微分方程圖像復原方法研究姓名：許磊申請學位級別：碩士專業(yè)：信號與信息處理指導教師：張曉玲201205AbshactAbstractIm咖systemisa任ectedbyVariousfa躺whichre幽inreductionin婦agequali夠Imagerestorationme廿10dmal【esuseofapriorh10wledgeoftllede伊adationprocesSt0res

2、toremeeSsence0ftllede伊adedilIlageBy1lsiIlgi如lagereStorationtechIliques，tlle趴Jbjecne、，isuale虢ctoftlleiInagecanbee11hanced鋤dt11ereStorationiInageismoresu地lblef0rsubsequenta砌ysis鋤d缸e舳饑tresearch，soimagerestorationmenlodh嬲alw

3、aysbe饑am旬0rconcemint11efieldofinlageproc懿siI唱The仃ilditionalmethodofinlagerestofationtendst0llIlderminetlleedges，lin∞，textllresandotllerinlagesfeatllrcwhiler跏∞、，iI培noiseTbtIlis髓1d，newtlle0巧necds幻be加ducedtomm∞也einlagercsto

4、rationalg嘶thmimprovedhagereg眈嘶onalg耐也Inbasedonpanialdi脅entialeq訓。璐(PartialDifjR鵬ntialEquatioIlS，PDES)c觚bebet衙ablet0ke印nledetailsoftlleilnagefeaturesandreStoretlleilnageat也esametimewllichmal【csPDEsatnactmoreandmorc刪oIlSin

5、recemycarsh也ispaper，a耐efi玎仃0dllc矗0nofmeb鵲ic舶meworkPDEsllsedforilIlagerestor撕onis西V髓firStlyBasledon“st11efollowingalg硎m潞areproposed璐ingShock丘ltercoupledtocuⅣatu】陀mfmsionmodelinordert0b滟ke印theedgeiIlf0衄ationoft11einlage：11

6、kbilatt釉lfiltcrc粗e膿6vely帕d1Jceimagenoiseandkeeptlledetailsoftheilnagebyt乏IkingadVantageofgeonlI言nyspacedis住mceill|’0nnation強dgraysimil撕t)，in：fol強ationinⅡ圮ncighborh00dsimlllt觚eoIlSlyComparedt0廿1e們缸ionalGaussi姐fiheritc雒ke印

7、edgeandretaintligh能quencydetailsb酣既Based衄也eideaof也ebilatemlfilter鋤d恤probl鋤that也egradi咖usinginmcpanialdim犯以alequatio璐011lymal(esuseoftllegrayleVel到e10肋ationtodetellnjnemedifmsion，weproposemeadaptivegradientoperator砌chnoto