圖像傳感器不均勻性校正方法及實現(xiàn)研究.pdf

1、重慶大學(xué)碩士學(xué)位論文圖像傳感器不均勻性校正方法及實現(xiàn)研究姓名：余傳祥申請學(xué)位級別：碩士專業(yè)：電氣工程指導(dǎo)教師：汪泉弟20040109重慶人學(xué)碩士論文英文摘要ABSTRACTNowadaysthehumanbeinghascomeintotheinformationageItbecomesresearchfocushowtogettheinformationHoweverthemassinformationmorethan80％isgot

2、byvisualorgansAsatypeofbasicdeviceofgettingvisualinformationtheimagesensorsaredevelopingfastwiththeincreasingdevelopmentoftechnologyofsemiconductorintegratedcircuitandareutilizedwidelyinmanyfieldssuchasciviluse，militaria

3、ess，astronomy，medicine，industrialdetecting，automaticcontrolandSOonButanytypeofimagesensorhasthequestionofnonuniformityThisquestionwilldirectlyaffectthequalityofimageandimagesensor’SusingrangeAsaresult，itisverynecessaryte

4、searchthisquestionandfindamethodtesolvethisquestionFirstlythethesisintroducestheprincipleofnonuniformityandtheimagingcharacteristicsOnthiscondition，thethesisbringsforththemethodwhichlinearizecharacteristiccurveofphotoele

5、ctricconversionofimagesensorbyseveralsegmentsandtheprincipleandalgorithmofnonuniformitycorrectionAtthesametime，thethesisalsoputforwardthedesignschemewhichintegratesdata—sampling，analysisandprocessing，controlling，Digitl—t

6、o—AnologconversionaswellasdatacommunicationItallowsthesystemtosatisfyalldemandsofthecorrectioneffectivelyandstablySecondlythethesisintroducethedesignofhardwareplatformwhosecontrolcoreishighdensityprogrammablelogicdevice(

7、HDPLD)，whichconsistsofAnolog—toDigitalConvertorDigitaltoAnologConvertorHDPLD，Micro—ControllerUnit(MCU)，memoryandSOonThirdlythethesisdiscussesthedesignofcorrectionsoftwarewhichincludesMCUprogram，HDPLDprogramandClanguagepr

8、ogramonPCTheCL512JCMOSimagesensorwhichisproducedattheChongqingUniversityisusedinthenonuniformitycorrectionexperimentIntIlecourseoftheexperimentthePCiSusedtOrealizethecorrectionalgorithmandanalyzetheindexofperformanceatfi

9、rstThenthecorrectionsystemoperatessinglyandrealizesthenonuniformitycorrectionofCLSlZITheexperimentalresultshowsthenonuniformityofCL512Jdecreasesfrommorethan45％tolessthan2％Itisseenthatthecorrectionsystemhasstableperforman