简介:AgeometricalgorithmforTilted-CameraPerspective(TCP)projec-tionisproposedinthispaperbasedontheprincipleofperspectiveprojection.Ac-cordingtothat,thedifferencebetweenTCPprojectionandExternalPerspective(EXP)projectionisanalyzed.Itisputforwardprerequisitesmakingthesetwoprojectionswerecompatible,andsomeexamplesaregiven.
简介:ProjectionoftheWorldPopulationbyRegion*AsiaandthePacificRegionandWestAsiaProjection of the World Population by Region...
简介:等轴的设计(IsoProjection)是一个线性维数减小方法,它明确地考虑歧管在数据嵌入的结构。然而,IsoProjection是非直角的,它使它极其敏感到减少的空间的尺寸并且对估计困难内在的维数。non-orthogonality也弄歪在数据嵌入的公制的结构。这份报纸建议一个新方法叫了直角的等轴的设计(O-IsoProjection),它分享象IsoProjection的一样的线性特性并且克服IsoProjection的公制的失真问题。类似于IsoProjection,O-IsoProjection第一构造能思考的一张毗邻图歧管在数据嵌入的结构和在样品之间的类关系脸空格指,然后由保存如此的图结构获得设计。与IsoProjection不同,O-IsoProjection要求直角的基础向量,和直角的基础向量能由反复的方法是计算的。ORL和耶鲁数据库上的试验性的结果证明O-IsoProjection让更好的识别比Eigenface,Fisherface和IsoProjection为脸识别评价。
简介:Aformulationofadifferentialequationasprojectionandfixedpointpi-Memalloivsapproximationsusinggeneralpiecnvisefunctions.Weproneexistenceanduniquenessoftheupproximatesolution*convergenceintheL2normandnodalsupercnnvergence.TheseresultsgeneralizethoseobtainedearlierbyHulmeforcontinuouspiecevjisepolynomialsandbyDelfour-Dubeaufordiscontinuouspieceuiisepolynomials.Adualityrelationshipforthetwotypesofapproximationsisalsogiven.
简介:Inthispaper,byusinganewprojection,weconstructavariantofZhang’salgorithmandproveitsconvergence.Specially,thevariantofZhang’salgorithmhasquadraticterminationandsuperlinearconvergenceraleundercertainconditions.Zhang’salgorithmhasn’ttheseproperties.
简介:Demonstratingtheapproachtoprotractthefigureofthree-dimensionalgraphswithgeometricalformsintwo-dimensionalplanes,graphicsisabasictechnicaldisciplineofexaminingprotractingengineeringdrawingsusingthemethodofprojectionandaddressingissuesonspacegeometryaswellasitstheoryandapproach.Graphicsisalsoakindofsemioticsystemofwriting.ChinaboastsofrichtraditionofgraphicswithamazingarchitecturaldrawingsinPre-Qinperiod,boomingtheoriesofgraphicsinWeiandJinDynasties,refinedprotracteddrawingsinSongandYuanDynasties,andgraphicsbeingregardedasimportantinstrumentsinMingandQingDynastieswhenthoroughapprehensionwerepursuedinordertoseekthepracticeofadministration.ItnotonlyformsthebasisformodernandcontemporarygraphicsinChina,butalsoshapesthefuturedevelopmentofgraphics.
简介:Thispaperproposesaprojectionprogrammingmethodofcombinationweighting.Themethodcombinessubjectiveweightsandobjectiveweights,andderivestheweightsofattributesbysolvingaprojection-programmingmodel.Themethodissimple,practicalandeasytoimplementoncomputer.Anumericalexampleisalsogiven.
简介:ProjectionofChangeintheAgeStructureoftheWorldPopulationBythemid-21stcentury,theworldpopulationisprojectedtotoptenbillion,ofwh...
简介:quasistatic一致设计被做为不平表面的粘附描绘有效连贯的地区行为。在一致设计的上下文,为一个不平的接口的一致连贯的地区(HCZ)的拖拉对分离关系能在显微镜的粘附和decohesion进程期间由于不稳定性是高度摆动的。不稳定性被发现不仅个别地而且一起发生在粘合剂之中微粗糙的接触,导致广泛的精力驱散。基于HCZ关系的行为,为在不平表面的粘附描述导致不稳定性的精力驱散的一个框架被建议阐明明显的接口粘附上的粗糙的效果。二个非维的参数,与粗糙形态学有关的伪和与aw分发有关的n,被识别为控制精力驱散很关键。为浅粗糙和强壮的内在的粘合剂力量的一个接口,如果我们使它更不平,接口粘附能更强壮(减少伪)或降低它的aw密度(增加的n)。HCZ设计方法能潜在地被扩大并且采用了为与多尺度的浅粗糙设计表面从内在的粘附性质衔接明显的粘附。
简介:极端宽带(UWB)要求的高速度的高分辨率的analog-to-digital(A/D)变换信号处理是一个很挑战性的问题。这份报纸为UWB信号获得建议一个平行随机的设计方法。建议方法能完成高采样率,高决定和硬件实现的技术可行性。在建议方法,一个模拟UWB信号在一套随机的符号函数上被投射。然后,低率的高分辨率的analog-to-digital变流器(模数转换器)被用来取样设计系数。信号能被简单线性计算与采样矩阵重建,没有遵循优化算法和优先的知识。在另外的方面,不同其它走近那需要在极其高的频率利用精确时间移动,或设计一个混合过滤器银行,或与优先的知识为信号产生特定的基础功能或工作,建议方法是一条通用采样途径并且对容易适用。到噪音比率(SNR)和假免费的动态范围(SFDR)的信号的模拟结果为UWB信号获得验证建议方法的效率。
简介:ConsiderL2-projectionuhofuton-degreefiniteelementspaceonone-dimensionaluniformgrids.TwodifferentclassesoftheorthogonalexpansioninanelementforconstructingasuperclosetofunctionuhareproposedandthensuperconvergenceforbothuhandDuhareproved.Whennisoddandnoboundaryconditionsareprescribed,thenuhisofsuperconvergenceatn+1orderGausspointsGn+1ineachelement.Whennisevenandfunctionvaluesontheboundaryareprescribed,thenuhisofsuperconvergenceatn+1orderpointsZn+1ineachelement.Iftheotherboundaryconditionsaregiven,thentheconclusionsarevalidinallelementsthatitsdistancefromtheboundary≥ch|lnh|.Theaboveconclusionsarealsovalid.forn-dergreerectangularelementQ1(n).