ccd的图像采集软件系统的设计与实现本科毕设论文.doc

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1、CCD的图像采集软件系统的设计与实现_硕士学位论文CCD的图像采集软件系统的设计与实现_硕士学位论文CCD的图像采集软件系统的设计与实现_硕士学位论文CCD的图像采集软件系统的设计与实现_硕士学位论文CCD的图像采集软件系统的设计与实现_硕士学位论文CCD的图像采集软件系统的设计与实现_硕士学位论文CCD的图像采集软件系统的设计与实现_硕士学位论文IIIimplement.CCD的图像采集软件系统的设计与实现_硕士学位论文CCD的图像采集软件系统的设计与实现_硕士学位论文Final,thetestofthesystem'shard

2、wareandsoftware.Thetestresultsshowthatthedesignachievedtheacquistionfunctionandgoodperformance.Atthesametime,thesystemachievedtheexpectedacquisitionspeedandqualityofthecollectedimage.Keywords:Scanner,CCD,Man-machineinterface,Multithread,MemorymanagementIIABSTRACTTheMu

3、lti-CCDscannerswhicharewidelyusedinprinting,scientificresearch,medicalandotherfieldshaveimportantapplicationsinoptical-electronic-machineryintegrationequipment.Atpresent,withtherapiddevelopmentalotofindustriesneedtoarchivelargeformatmaterials.Therefore,thedemandforlar

4、ge-formatscannerisincreasing,whilepromotingthedevelopmentandproductionoflargeformatscanners.Themainworkofthelarge-formatscanneristoconverttheanalogsignaltothedigitalsignalwhichthecomputercanidentifyafterconvertingtheimage'sopticalsignaltotheanalogsignal.Inordertoscanl

5、argeformatimages,aneffectiveapproachistocaptureimagesthroughmultiplesensors,thensplicetheimagetocompletethelarge-formatscanner'swork.ThescannerusefoursametypeCCDtocapturetheimagesthensplicethemintoone.WhilethefourCCDsscanasynchronouslytoaccomplishthephotoelectricconve

6、rsionintheprocess.Themainworkofthispapercanbedividedintotwoparts,hardwareandsoftwaredesign.Thefirstpartisthehardwarework,afteranalyzingthelargeformatscanner'sworkingprincipleandhardwaresystem'sperformanceparametersthedevelopmentcontentandfocusesoftheworkoflarge-format

7、scannerhasbeendetermined.Thedeviceshavebeenselectedaccordingtotheparameters.ThenwefinishedthescannerhardwarecircuitdesignandFPGA'stimingdesignincludingthedriverandconfigurationofthedigital-to-analogconversionchip.Thisistheimportantfactortotheimagequality.Convertingthe

8、opticalsignaltotheanalogsignallaidafoundationtoenhanceimagequalitywhichisthekeytolarge-formatscanning.Thesecondpartisaboutth