简介:Thatdaywehadanexam,andIfailed.Feelingsodepressed,Isetasidemylessonsandlookedoutofthewindow,hopingtofindacomfort.Tomygreatjoy,whatabeautifulduskIsaw!Rosycloudscoveredthewholeskyandeverythingseemedsopeaceful.Thesceneremindedmeofmyfriends,bringingmebacktothetimewhenwestudiedtogetherthreeyearsago.
简介:OntheThresholdOnthethresholdofanewcentury,whileretrospectshowsastormycenturyjustgoneby,prospectdisplaysrenewalandtransformationsonthehorizon.Justastracesofthepastcanbefoundinthetrajectoryofthefuture,socouldcluestothefuturebepredicatedfromvestigesofthepast.Ontheonehand,areflectionofthefuturecanbegleanedfrompastdevelop-ments.Infact,alltheatmosphericpatternsofthecurrentgloballandscapehavebeendeeplyintertwinedwithmajortransformationsinthepoliticalandeconomic
简介:Digitrecognitionfromanaturalscenetextinvideosurveillance/broadcastingapplicationsisachallengingresearchtaskduetoblurred,fontvariations,twisted,andnon-uniformcolordistributionissueswithadigitinanaturalscenetoberecognized.Inthispaper,tosolvethedigitnumberrecognitionproblem,aprincipal-axisbasedtopologycontourdescriptorwithsupportvectormachine(SVM)classificationisproposed.Thecontributionsofthispaperinclude:a)alocaldescriptorwithSVMclassificationfordigitrecognition,b)higheraccuracythanthestate-of-theartmethods,andc)lowcomputationalpower(0.03second/digitrecognition),whichmakethismethodadoptabletoreal-timeapplications.
简介:Scenegraphisainfrastructureofthevirtualrealitysystemtoorganizethevirtualscenewithabstraction,itcanprovidefacilityfortherenderingengineandshouldbeintegratedeffectivelyondemandintoareal-timesystem,wherealargequantitiesofsceneobjectsandresourcescanbemanipulatedandmanagedwithhighflexibilityandreliability.Wepresentanewschemeofmultiplescenegraphstoaccommodatethefeaturesofrenderingengineanddistributedsystems.Baseduponthat,someotherfunctions,e.g.blockquery,interactiveediting,permissionmanagement,instanceresponse,″redo″and″undo″,areimplementedtosatisfyvariousrequirements.Atthesametime,ourdesignhascompatibilitytopopularC/Sarchitecturewithgoodconcurrentperformance.Aboveall,itisconvenienttobeusedforfurtherdevelopment.Theresultsofexperimentsincludingrespondingtimedemonstrateitsgoodperformance.
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简介:Realisticsimulationofunderwatersceneisalwaysdifficultbecauseofthespecialandcomplexvisioneffectsinunderwaterspace.Seabedisanimportantpartofunderwaterenvironment.ThispaperdescribesthemethodsforseabedscenesimulationbasedonOpenGL.Itincludesconstructionoffluctuantterrainbasedontherandomsinusoidalalgorithm,simulationofseabedflickereffectbymeansofcirculartexturemappingandgenerationofturbidityeffectbyusingfogtechniques.Fortheapplicationbasedontheleadinghighlevel3Ddevelopmentenvironment-Vega,underwaterscenesimulationisstilladifficultysincethereisnomoduleforit.BasedontheanalysisofVegasoftwareandtheresearchonseabedscenesimulationmethods,aVegaextendingmodulenamed'UnderwaterSpace'wascreatedthroughdevelopingmoduleclassandextendinglynxinterface.ThemoduleclasswasdesignedthroughdevelopingDLLwritteninC++.TheLynxwasextendedthroughdevelopingkeywordconfigurefile,GUIconfigurefileandlynxplug-inDLL.TheproblemthatVegacan'tsimulateunderwaterspace,iselementarilyresolved.Theresultsshowthatthismoduleisefficient,easyusing,andtheseabedsceneimagesarevivid.
简介:Afterthepyramids,obelisksmustbethemosticonicsymbolofAncientEgypt,butvisuallylittleisknownaboutthemeansbywhichtheirtransportationwaseffected,otherthanaNewKingdomscenefromDeirel-Baharioftheconveyanceofobelisksbywater,aboardalighter.1Theonlyothericonographicsource,untilrecently,whichapproachedadepictionofsuchanactivity,wasanOldKingdomscenedepictingtheconveyanceofgranitepalmettecolumnsbybargetothepyramidcomplexofUnas.2NeitherthishulltypenorthelighterappearinGardiner’sregisterofship/boatdeterminatives,3norinReisner’stypologyseries.4IhavecategorizedtheUnasvesselasanETH10vessel.5
简介:Thispaperproposesalearning-basedmethodfortextdetectionandtextsegmentationinnaturalsceneimages.First,theinputimageisdecomposedintomultipleconnected-components(CCs)byNiblackclusteringalgorithm.ThenalltheCCsincludingtextCCsandnon-textCCsareverifiedontheirtextfeaturesbya2-stageclassificationmodule,wheremostnon-textCCsarediscardedbyanattentionalcascadeclassifierandremainingCCsarefurtherverifiedbyanSVM.AlltheacceptedCCsareoutputtoresultintextonlybinaryimage.Experimentswithmanyimagesindifferentscenesshowedsatisfactoryperformanceofourproposedmethod.
简介:<正>IneverexpectedtoridearetiredracehorseinBeijingonSaturdays.ButinthiscityofunknownequestrianquantitiesIhavefoundsomeofthebesthorse-ridingtrainingandfacilitiesI’veeverencountered,anywhere.MostoftheinstructorscomefromInnerMongolia,hometomostofChina’shorseculture.ThehorsesmeanwhilehavebeenbroughtherefromstablesinHongKongandAustralia.Manyareretiredracehorses,mild-mannered,gentlebeastswhotakestudentsgentlyaroundthetrainingpens.Lessonsaren’tcheapbyanystandardsbutthequal-