防伪激光标刻的软件研究

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1、华中科技大学硕士学位论文AbstractAsahotspotinlaserprocessingtechnology,lasermarkingandengravingtechnologyisbeingrapidlydeveloped，havingawidemarketingforeground．Inthispaper,basiclasermarkingsoftwarehasbeendeveloped，anti-counterfeitinglasermarkingsoftwarehasbeenals

2、oinvestigated．Inordertoreducefillinglinesandimproveprocessingefficiency,investigationonfillingalgorithmofcomplexareahasbeendoneinthispaper,Complexareawithsomeislandswillbecomesimpleconnectiveregionbyprolongingspecificallineofislandboundary，simpleconn

3、ectiveregionsaredecomposedandbecomeconvexpolygonbyprolongingthelongestlineofboundaryandparallelinterceptingofthelongestlineofboundary．Fillingalgorithmforconvexpolygonisfindingoutthelinewhoseheightisthesmallest．thenfillingconvexpolygon、^，itllparallell

4、inesofthat．Theorderoffillinglinesisoptimizedinlasermarking．Thestudyofbarcodelasermarkinghasbeendoneinthispaper．BecausesomecorrespondingTrueTypefontsforone—dimensionalbarcodehavebeendeveloped，SOlasermarkingofone·dimensionalbarcodeCallbedonebygettingth

5、eoutlineoftheTrueTypecharacterandthenfillingtheoutline．Standardsof417barcodeandQRcodehavebeenreleasedinourCOU咖／．Inthispaper,thesetwokingsoftwo-dimensionalbarcodeshavebeenanalyzed，themethodofbi-directionalscanningblackandwhitetwo·valuebitmapoftwo—dime

6、nsionalbarcodeshasbeenpresented．Informationanti—counterfeitinglasermarkingtechnologyhasbeenpresentedinthispaper．Thespecificalanti·counterfeitinginformationbasedonvectormarkingdatawillbeproducedbythesystem，whichwillbemarkedontheproductswiththeoriginal

7、markingdata．Anda￡thesametimetheoriginalmarkingdataandanti-counterfeitinginformationwillbesaveinremotedatabaseserverusingdatabasetechnologyandcomputernetworktechnology．ClientsCandistinguishthetreeproducesfromfakethroughr’etworks．Verygoodanti—counterfe

8、itingeffectswillbeobtainedthroughthismethod．Keywords：LaserMarkingAnti-counterfeitingAreaFillingTwo．dimensionalBarCoden华中科技大学硕士学位论文1．1激光加工概述1．I．1激光加工技术【I_8】1绪言激光因具有单色性好、相干性好、方向性好、亮度高等特点，特别适用于材料加工。如今激光加工已成为激光应用中最有发展前途的领域之一，现在已经开发出几十种激光加工技术。又由于激光的空间控制性和