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《偏振成像技術(shù)提取目標(biāo)紋理的研究畢業(yè)》由會員上傳分享，免費(fèi)在線閱讀，更多相關(guān)內(nèi)容在學(xué)術(shù)論文-天天文庫。
1、偏振成像技術(shù)提取目標(biāo)紋理的研究摘要本文主要通過實驗研究偏振圖像與強(qiáng)度圖像在目標(biāo)探測方面上的優(yōu)劣。實驗基于偏振光特性結(jié)和Stokes矢量表示法，采用激光主動成像與自然光被動成像兩種方式，分別在室內(nèi)、外進(jìn)行實驗，用CCD采集獲得各個目標(biāo)3幅原始圖像，再用Matlab軟件對3幅原始圖像進(jìn)行處理，得到多組距離、光強(qiáng)不同的偏振度圖像。獲得目標(biāo)物體的強(qiáng)度圖像與偏振度圖像比較兩種圖像的優(yōu)劣。實驗結(jié)果表明：偏振圖像與強(qiáng)度圖像相比，偏振圖像對低照度（陰影等）部分、邊緣部分信息得到增強(qiáng)，偏振信息對物體的紋理探測效果明顯。所以偏振成像技術(shù)在軍事偵查、目標(biāo)識別、海洋搜救等領(lǐng)域有廣闊應(yīng)用前景。關(guān)鍵詞
2、：偏振成像；斯托克斯矢量；圖像處理；偏振度圖像；強(qiáng)度圖AbstractThispaperthroughtheexperimentalstudyofpolarizationimageandimageintensityintargetdetectiononthemerits.ExperimentsbasedonpolarizedcharacteristicsandStokesvectorrepresentation,usinglaseractiveimagingwithnaturallightpassiveimagingintwoways,respectively,andint
3、heindoorexperiment,usingCCDdatafromeachtarget3pieceoftheoriginalimage,andthenMatlabsoftwareonthe3pieceoftheoriginalimageprocessing,resultinginmultiplesetsofdistance,intensityofdifferentdegreeofpolarizationimage.Toobtainthetargetobjectintensityimageanddegreeofpolarizationimagecomparisonoftw
4、oimagequality.Atthesametime,weuselinearpolarizationlaserasthelightsource,makingtargetdetectionandrecognitionexperimentforseveralconventionalman-madeobjectsandthenaturaltargetindoorandoutdoor.Weuseimageacquisitionsystemtogetstrengthimageandpolarizationimageofdifferentroughnessmetaltargetand
5、nonmetallictargets,andwritingmatlabprogramtocalculategrayvaluesofimageandenhanceprocessing.Resultsshowthatinlinearpolarizationlaserirradiation,man-madeobjectsandthenaturaltargethaveverybigdifferenceinrefundpartialnature.Technologyoflinearpolarizationlaseractiveimagingcanimprovemetaltargeta
6、ndbackgroundcontrasttothebenefitoftargetdetectionandrecognition.Inactiveimagingofpolarizedactiveimaging,smoothsurfacetargetsaremoreconducivetorecognize.Theexperimentalresultsshowthat:polarizationimageandstrengthcomparedtoimages,polarizationimageonlowintensity(shadowpart),edgeinformationise
7、nhanced,thepolarizationinformationofobjecttexturedetectioneffectisobvious.Sothepolarizationimagingtechnologyinmilitaryreconnaissance,targetidentification,marinesearchandrescueandotherfieldshavebroadapplicationprospects.Keywords:Polarizationimaging；Stokesvector
