基于图像处理的飞行器姿态测量

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1、ABSTRACTThetfi．dimensionalgestureoflandingcarrier-basedaircraftiscrucialtotheonacarder．Itisalsoanimportantfieldtomonitorsafetyoftheaircraftlandingtheaircraft’Stri．dimensionalgesturewhilelandingonthecarrier．Inthispaper,thewholeprocessofaircraftlandingonthecarrierlSanalyzedto

2、proposeanewmethodtomeasurethecarrier-basedaircraft’Stri·dimensionalges帆。First，accordingtotheinformationgivenbytheshipborneequipments，likeradar．aircraft'spicturesaretakenatcertaintime．Thenthepicturesarecarriedaseliminatingonpretreatments，suchgrayprocessing，binaryprocessing，n

3、oiseenhancementtomakepreparationforthenextstep·Secondly,proceSSandimageHarrisdetectionmethodisusedtoobtainthecharacteristicpointoftheimage-H龇矗sdetectionmethodisusedtoobtainthecharacteristicpoints，whichusuallyaroundliesintheedgeoftheaircraft，suchast11etopofthewing，empennage·

4、Sothecharacteristicpoints，templatematchingisusedtolocalizethepositionofthedifferentparts．Theaircraft’Stri．dimensionalgestureCallbeobtainedaccordingtotllepositionofeachpart．MeanwhileSIFToperatorisusedtogettheSIFTcharacteristicvectorspaceoftheimage．Thirdly，aroundthecenterofth

5、eHarrisiscarriedontogetthecharacteristic．SIFTcharacteristicpointtemplatematchingprecisepositiontwicethesizeofthetemplatemodeltoreducecomputationalcomDlexity．Finally,afterthelocatingofthedifferentaircraftparts，thedistanceandtheanglesaremeasuredtomakecomparisonwiththeknownpar

6、ametersoftheaircrafttri．dimensionalprojectiontOgettheaircraft’Sgesture·Itisnoeasytogetthepicturesandthegestureinformationofrealaircrafts，consideringthepracticalexperimentalenvironments．Soallthepicturesoftheaircraftsusedinthesimulationscomefrom3DMAX，a3Drecreationsoftware，rec

7、reatedbasedonthe3DmodelofwitllthehelpofwhichaircraftpicturesarearethemethodproposedSu-33carrier．basedaircraft．Thosepicturesprocessedbyintmst11emeandmeasurementsaremadetogetthegestureoftheaircraft．The哈尔滨}：程人学颂+学位论文resultsarecomparedwiththerealgestureparametersandshowthatthem

8、ethodproposedinthistllemecanmeasuretheaircraft’Sgestureatcertainaccuracy．Keywords：