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15 个结果
  • 简介:N:懒惰的小狐狸成天想不劳而获,饿了就去偷别人的东西吃,所以小动物们都不喜欢它。有一天它又饿了……

  • 标签: 小学 英语 课外阅读 阅读材料
  • 简介:Thatdaywehadanexam,andIfailed.Feelingsodepressed,Isetasidemylessonsandlookedoutofthewindow,hopingtofindacomfort.Tomygreatjoy,whatabeautifulduskIsaw!Rosycloudscoveredthewholeskyandeverythingseemedsopeaceful.Thesceneremindedmeofmyfriends,bringingmebacktothetimewhenwestudiedtogetherthreeyearsago.

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  • 简介:OntheThresholdOnthethresholdofanewcentury,whileretrospectshowsastormycenturyjustgoneby,prospectdisplaysrenewalandtransformationsonthehorizon.Justastracesofthepastcanbefoundinthetrajectoryofthefuture,socouldcluestothefuturebepredicatedfromvestigesofthepast.Ontheonehand,areflectionofthefuturecanbegleanedfrompastdevelop-ments.Infact,alltheatmosphericpatternsofthecurrentgloballandscapehavebeendeeplyintertwinedwithmajortransformationsinthepoliticalandeconomic

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  • 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.

  • 标签: 数字识别 自然场景 场景文本 实时应用 支持向量机 视频监控
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  • 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.

  • 标签: 场景图 分布式环境 构造 虚拟现实系统 基础设施 权限管理
  • 简介:Realisticsimulationofunderwatersceneisalwaysdifficultbecauseofthespecialandcomplexvisioneffectsinunderwaterspace.Seabedisanimportantpartofunderwaterenvironment.ThispaperdescribesthemethodsforseabedscenesimulationbasedonOpenGL.Itincludesconstructionoffluctuantterrainbasedontherandomsinusoidalalgorithm,simulationofseabedflickereffectbymeansofcirculartexturemappingandgenerationofturbidityeffectbyusingfogtechniques.Fortheapplicationbasedontheleadinghighlevel3Ddevelopmentenvironment-Vega,underwaterscenesimulationisstilladifficultysincethereisnomoduleforit.BasedontheanalysisofVegasoftwareandtheresearchonseabedscenesimulationmethods,aVegaextendingmodulenamed'UnderwaterSpace'wascreatedthroughdevelopingmoduleclassandextendinglynxinterface.ThemoduleclasswasdesignedthroughdevelopingDLLwritteninC++.TheLynxwasextendedthroughdevelopingkeywordconfigurefile,GUIconfigurefileandlynxplug-inDLL.TheproblemthatVegacan'tsimulateunderwaterspace,iselementarilyresolved.Theresultsshowthatthismoduleisefficient,easyusing,andtheseabedsceneimagesarevivid.

  • 标签: 情景模拟 海底 Vega模式 闪烁 混浊度
  • 简介:Afterthepyramids,obelisksmustbethemosticonicsymbolofAncientEgypt,butvisuallylittleisknownaboutthemeansbywhichtheirtransportationwaseffected,otherthanaNewKingdomscenefromDeirel-Baharioftheconveyanceofobelisksbywater,aboardalighter.1Theonlyothericonographicsource,untilrecently,whichapproachedadepictionofsuchanactivity,wasanOldKingdomscenedepictingtheconveyanceofgranitepalmettecolumnsbybargetothepyramidcomplexofUnas.2NeitherthishulltypenorthelighterappearinGardiner’sregisterofship/boatdeterminatives,3norinReisner’stypologyseries.4IhavecategorizedtheUnasvesselasanETH10vessel.5

  • 标签: PYRAMIDS iconographic Deir el-Bahari
  • 简介:Thispaperproposesalearning-basedmethodfortextdetectionandtextsegmentationinnaturalsceneimages.First,theinputimageisdecomposedintomultipleconnected-components(CCs)byNiblackclusteringalgorithm.ThenalltheCCsincludingtextCCsandnon-textCCsareverifiedontheirtextfeaturesbya2-stageclassificationmodule,wheremostnon-textCCsarediscardedbyanattentionalcascadeclassifierandremainingCCsarefurtherverifiedbyanSVM.AlltheacceptedCCsareoutputtoresultintextonlybinaryimage.Experimentswithmanyimagesindifferentscenesshowedsatisfactoryperformanceofourproposedmethod.

  • 标签: 景象图 文字特征 文字检测 文字分割 学习算法
  • 简介:一新大规模三维(3D)重建技术基于有颜色位置特征的不可分的成像被介绍。目标点的颜色类似于相应的点的那些。因为不可分的成像与在x和y方向上有类似的程度的一个高级数组捕获信息,相应的点坐标形成算术前进。这种常规关系被用来决定相应的点参数因为从划分元素的图象的重建的3D信息由颜色分开了,它包含几个相应的点。建议方法的可行性通过一个光室内的实验被表明。建议方法的大规模应用被实验作为它的目标与我们的学校的一个角落说明。

  • 标签: 颜色特征 三维重建 成像 场景 位置 室内实验
  • 简介:<正>IneverexpectedtoridearetiredracehorseinBeijingonSaturdays.ButinthiscityofunknownequestrianquantitiesIhavefoundsomeofthebesthorse-ridingtrainingandfacilitiesI’veeverencountered,anywhere.MostoftheinstructorscomefromInnerMongolia,hometomostofChina’shorseculture.ThehorsesmeanwhilehavebeenbroughtherefromstablesinHongKongandAustralia.Manyareretiredracehorses,mild-mannered,gentlebeastswhotakestudentsgentlyaroundthetrainingpens.Lessonsaren’tcheapbyanystandardsbutthequal-

  • 标签: horse COURSES PIANO SCENE GENTLE Australia