学科分类
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7 个结果
  • 简介:InCAGDandCG,energymodelisoftenusedtocontrolthecurvesandsurfacesshape.Incurve/surfacemodeling,wecangetfaircurve/surfacebyminimizingtheenergyofcurve/surface.However,ourresearchindicatesthatinsomecaseswecan'tgetfaircurves/surfaceusingthecurrentenergymodel.Soanimprovedenergymodelispresentedinthispaper.Examplesarealsoincludedtoshowthatfaircurvescanbeobtainedusingtheimprovedenergymodel.

  • 标签: 插值曲线 能量模型 曲面形状 CAGD 控制曲线 能源模型
  • 简介:Imagedenoisingisthebasicproblemofimageprocessing.Quaternionwavelettransformisanewkindofmultiresolutionanalysistools.Imageviaquaternionwavelettransform,waveletcoefficientsbothinintrascaleandininterscalehavecertaincorrelations.First,accordingtothecorrelationofquaternionwaveletcoefficientsininterscale,non-Gaussiandistributionmodelisusedtomodelitscorrelations,andthecoefficientsaredividedintoimportantandunimportancecoefficients.Thenweusethenon-Gaussiandistributionmodeltomodeltheimportantcoefficientsanditsadjacentcoefficients,andutilizetheMAPmethodestimateoriginalimagewaveletcoefficientsfromnoisycoefficients,soastoachievethepurposeofdenoising.Experimentalresultsshowthatouralgorithmoutperformstheotherclassicalalgorithmsinpeaksignal-to-noiseratioandvisualquality.

  • 标签: 去噪方法 图像处理 四元数 统计模型 小波域 高斯分布模型
  • 简介:Natural,efficient,intelligent,andbarrier-freeHCI(Human-ComputerInterface)willbethemaindevelopingdirectionofthenewintelligentHCI.Buildinganintelligent,natural,harmoniousandhumanisticHCIhasbeentheprimarydevelopingtendencyofthenewHCI.'Selectonefrommany'isoneofthekeyquestionsinresearchinganddesigningHCIbasedongestures.Onthesinglechannelinteractiveconditionwhichisbasedon3Dgestureoperation,webuildainteractivemodelof'Selectonefrommany'.Combiningthismodelwith'Token'technologyandreciprocatingmovementfeature,wepresentandrealizeasimpleefficient'Selectonefrommany'algorithm,whichisusedinaconcreteSOR(Selection-Operation-Release)system.IntheSORsystem,werealizeareal-timeselection,trackingandinteractionofnaturalgestures.

  • 标签: 手势 动模 智能人机交互 选择操作 实时选择 人机界面
  • 简介:Thepaperbuildsamulti-rigid-bodymodelofhumanwitha4-rigid-bodyfootinthe3DCADsoftwareSolidworks,basedonhumananatomy.Bycontrollingtherotationoftheankleandmajorjointsofhumanbodywhilewalking,theKinematicsimulationwasperformedinthedynamicssimulationsoftwareADAMS.Thepaperanalyzesthesimulateresultsandpointsoutdeficienciesinthecurrentworkandthedirectionofresearcheffortsinfuture.

  • 标签: 多刚体模型 运动学仿真 Solidworks 三维CAD软件 步态 仿真分析软件