二維條碼QR的糾錯改進(jìn)研究.pdf

1、武漢理工大學(xué)碩士學(xué)位論文二維條碼QR的糾錯改進(jìn)研究姓名：羅春玲申請學(xué)位級別：碩士專業(yè)：通信與信息系統(tǒng)指導(dǎo)教師：肖攸安201205AbstractComparedtwodimensionalbarcodewithonedimensionalbarcodetheformerdoesnotneedtelyondatabase，anditCallstorelargeamountofinformationandexpressavarietyofm

2、ultimediaandtextinformation，atthesametimeitalsocailbeembeddedencryptionsystem，havingerrorcorrectionabilityQuickresponsematrixcodes(QRcode)isakindofmatrixtwodimensionalbarcode，itcatlbeafullrangeofrecognitionandeffectively

3、expressChinesecharacters，atpresentithasbeenwidelyappliedinourcountryFortraditionalQRcodetheerrorcorrectionabilityislimited，thispaperproposesasolutionthaterrorcorrectingcodesLDPCcodeswillreplaceRScodetotheQRimage，andgraph

4、icspretreatmentisusedtodeal、航tllobtainednoiseandtiltedgraphics，finallythroughthesegmentationprocessinganddecodeprocessQRcodeisidentified，SOtheinformationwhatwewantisgottenThepurposeisthatonthebasisoferrorcorrectingcodesL

5、DPCencodinganddecodingQRCodeerrorcorrectionabilityisimprovedandtheQRcoderecognitioneffectisalsobetterDuetotheimprovederrorcorrectionabilitytheusescopeofQRcodeisalsoCallbeextendedThroughtheanalysisofthetwodimensionalbarco

6、detechnology’Sdevelopmentstatusathomeandabroad，andthentheQRcodesymbolscharacteristicsandencodinganddecodingprinciplesarestudied，thepaperputsforwardakindofnewQRgenermionschemeFirstitgivesastudyoftheerrorcorrectioncodeLDPC

7、codesencodinganddecodingthinkingandperformancesimulationandthenputsitwiththeRScodesimulationcontrastAtthesametimeadetailedstudyiscarriedforthegeneratedQRcodeimagepreprocessing，includingimagegraying，medianfiltering，binari

8、zationimagesegmentationandSOonFornewQRcodeintheprocessofgenerationerrorcorrectingcodescompositionneedattentionbecauseitsstructuredirectlyaffectthefinalQRcodeoferrorcorrectionabilityAftertheoreticalstudythispaperintroduce

9、sthedesignprocessingofQRencodinganddecoding，andsomeexperimentaldetectionandanalysis11leexperimentalresultsshowthatthenewQRcodedecodingabilityhasbeenimproved，anditcallextractthecorrectinformationinthelargedegreefouling，wh