Compound eyes

Compoundeyesinthebiologicalworld

1.Compoundeyesarerelativetoasingleeye.Theyarethemainvisualorgansofinsectsandusuallyoccupyaprominentpositionontheheadofinsects.Thecompoundeyesofmostinsectsareround,ovalorkidney-shaped.Itiscomposedofmostommatidiums.Eachommatidiumhasstructuressuchascornea,vertebrae,pigmentcells,retinalcells,rods,etc.,andisanindependentphotosensitiveunit.Axonsextendbackfromtheretinalcells,passthroughthebasementmembraneandconvergeintotheopticnerve.Thecompoundeyesofsomearthropodscontainpigmentcells.Whenthelightisstrong,thepigmentcellsextend.Onlydirectlightcanhittherodsandbefeltbytheopticnerve.Obliquelightisabsorbedbythepigmentcellsandcannotbefeltbytheopticnerve.Inthisway,eachommatidiumcanonlyformoneimagepoint,andtheimagepointsformedbymanyommatidiumsarecombinedintooneimage.Whenthelightisweak,thepigmentcellscontract,sothatthelightthatentersthrougheachommatidium,inadditiontothedirectlightreachingtherod,thelightcanalsoenterotherommatidiumsthroughrefraction,sothattherodineachommatidiumcanfeelit.Lightrefractedbyseveraladjacentommatidiums.Inthisway,objectscanbeimagedevenwhenthelightisweak.Thecompoundeyesofhousefliesarecomposedofabout4,000smalleyes,andthecompoundeyesofbutterfliesandmothshaveabout28,000smalleyes.Thesizeofthesmalleyesisnotonlydifferentindifferentspeciesofinsects,butthesmalleyesofdifferentpartsofthesamecompoundeyecanalsobedifferent.Forexample,inthemalegadfly,thesmalleyesonthebackofthecompoundeyearelarger;somemosquitoes(Biblio),Thesizeofthesmalleyesatthefrontandbackisalsodifferentandcanbedividedintotwoareas.Thesechangesarerelatedtotheirlivinghabits.

2,visualsensor.Itiscomposedofmultiplelightsensorsormultipleinfraredsensors.Itcansensethelightvalueorinfraredlightofalineorasurface.

ApplicationofBionics

Withthedevelopmentofmodernwarfare,therequirementsforprecisionguidanceinformationprocessingtechnologyaregettinghigherandhigher,andATR(AutomaticTargetRecognition)technologyhasbecomethedevelopmentofprecisionguidancetechnology.ThedevelopmentofATRtechnologyoriginatedfromhumanimitationofbiologicalvision.Basedonthis,thisarticleproposessomeautomatictargetrecognitiontechniquesbasedontheresearchanddiscussionofcompoundeyes.Asthevisualsystemofalivingcreature,thecompoundeyefirsthasthefunctionofthevisualsystemofageneralbiologicaleye.Inadditiontothis,italsohasitsuniquecharacteristics.Thisarticlediscussesandstudiesfromthesetwopoints.Firstofall,thecompoundeyeisregardedasageneralvisualsystem,fromtheimagepreprocessing,imagesegmentation,featureextraction,andtargetclassificationandrecognition,thisseriesofgeneralvisualprocessingproceduresareconsidered.Then,basedontheunderstandingoftheuniquecharacteristicsofitscompoundeyes,amulti-modecompoundguidancetechnologythatimitatescompoundeyesisproposed.Theworkdoneinthispaperismainlyinthefollowingaspects:

1.Infraredimagepreprocessing:firstly,thetraditionalimagepreprocessingmethodisintroduced,andthenthepredecessor’sworkonthesidesuppressionmechanismininfraredisintroducedandsummarized.Applicationinimagepreprocessing.Includingthemathematicalmodelofthesidesuppressiontheory,stabilitycriteria,timedomainfeatures,frequencydomainfeatures,thesidesuppressionnetworktohighlighttheimageframe,thefunctionofenhancingthecontrast,anditsapplicationinimagesegmentation.

2.Infraredimagesegmentation:First,themodelandclassificationofimagesegmentationareintroducedsystematically,andthen,fromtheperspectiveofadaptiveandrobustimagesegmentation,theoptimalentropyandfuzzyentropyarediscussedindetail.Imagesegmentationtechnology...