基于数字图像处理的光通信跟踪精度检测研究

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1、桂林理工大学硕士学位论文基于数字图像处理的光通信跟踪精度检测研究姓名：张春红申请学位级别：硕士专业：检测技术与自动化装置指导教师：陆绮荣20090401ABSTRACTInrecentyears，withtherapiddevelopmentofcomputertechnology,digitalimageprocessingtechnologyhasgottendeepresearchanddevelopment，especiallyintheaerospace，biomedicalandindustrialinspectionfieldsandSOon．T

2、herefore，theimageinspectingtechnologywillgraduallyreplacethetraditionalartificialvisual，byrightofitshi曲precisionandhighefficiency．BecauseofcomplexconditionsofbackgroundlightinSpaceopticalcommunicationsystem，therewillbeseriousnoiseandimagedistortion，whenopticalimagingiscapturedandtra

3、cked．Soitisdifficulttojudgethevisualtargetobjectusingtraditionalmethod，andaccuracyoftargetlocationtrackingwillbeaffected，themobileclientmachineswillbelostandcommunicationwillbedisruptedintheworstcase．Thispaperusesdigitalimageprocessingtechnologyandvirtualinstrumenttechniquetotrackth

4、eaccuracyofdetectionofopticalcommunicationsystems，thedetectionsystemcanquicklyandaccuratelydeterminethetargetobject，thenestimatethetrackingaccuracy．ThispaperfirstbrieflyintroducessomebasicconceptionsoftrackingprecisioninspectingofSpaceOpticalCommunication,onthebasisofwhich，systemhar

5、dwareplatformwasestablished，andthenemphaticallydescribesprocessingandanalysisofspotimagesinopticalcommunicationATPsystemwithdigitalimageprocessingtechnology．Firstofall，inordertoobtainhigll—qualityimagesforfollow-upimageanalysis，itisnecessaryforcontrastenhancement，filtering，sharpenin

6、gandotherprocessingofthecollectedimages．Secondly,throughthresholdsegmentationandedgedetection，theimageswerebinaryprocessedandedgeextractedforpreparationoffeatureextracting．Thirdly,withthebinaryimageforfeatureextraction，thespotisidentifiedwiththeextractedfeaturevectors．Finally,afters

7、potidentified，thespotispositionedusingthecentroidalgorithm，throughstatisticalcomputingandopticalcommunicationsimulation，trackingaccuracyisobtained．ThesystemusessoftwareofVirtualInstrumentLabWindOWS／CVI。LabWindows／CVIhasenoughforflamegrabbersandotherspecialhardwaresupport，andtheusers

8、don’tneedprogramthe