简介：Opticalperformancemonitoringusingasynchronousopticalorelectricalsamplinghasgainedconsiderableattention.Relativeclockwanderbetweendatasignalandsamplingsourceisatypicaloccurrenceinsuchsystems.Amethodforthequantitativemonitoringoftherelativeclockwanderinasynchronousopticalundersamplingsystemispresented.Withaseriesofsimulations,theclockwandersrecoveredusingthismethodareingoodagreementwiththepresetclockwandersofdifferentamountsandfrequenciesforbothRZandNRZsignals.Hence,thereliabilityandrobustnessofthemethodareproven.

简介：Point-basedsurfacehasbeenwidelyusedincomputergraphicsformodeling,animation,visualization,simulationofliquidandsoon.Furthermore,particle-basedapproachcandistributethesurfacesamplingpointsandcontrolitsparametersaccordingtotheneedsoftheapplication.Inthispaper,weexamineseveralkindsofalgorithmspresentedoverthelastdecades,withthemainfocusonparticlesamplingtechnologiesforimplicitsurface.Therefore,weclassifyvariousalgorithmsintocategories,describemainideasbehindeachcategories,andcomparetheadvantagesandshortcomingsofthealgorithmsineachcategory.

简介：Bytakingtheurbangreenlandastestingobjective,theGeoEye-1fusionimageasbackground,andusingMoran’sindex,thecorrelativityofgreenlandunitshasbeenmeasured.Then,thepresamplingwasconductedbasedonthemeasuredcorrelativity,thesystematicsamplingdesignhasbeencarriedoutattheprecision95%and85%.ByusingofKriginginterpolationmethod,theweightofdifferenttypeofgreenlandhasbeendividedintothestratifications.Throughthestratifiedsampling,theestimationofgreenlandcoveragehasbeenobtained.Theresultsshowthattheurbangreenlandcoverageareais14.81km~2,accountingfor27.73%ofallurbanlandareas.Comparedwiththecommonsamplingmethod,theprecisionofthatincreasedabout3%.Thismethodcanalsobeutilizedinmonitoringdynamicvariationofurbangreenlandwiththerealtimeimages.

简介：让Bp，1p<，是从Lp的所有围住的功能的空间()它能被扩大到指数的类型的全部功能。没有腐烂假设，为截断的Whittaker-Kotelnikov-Shannon系列的一致错误界限在无穷为功能fBp基于本地采样被导出。然后aliasing错误和为从Sobolev类U的non-bandlimited函数的Whittaker-Kotelnikov-Shannon扩大的截断错误的最佳的界限(Wpr())被决定直到一个对数的因素。

简介：美国西部时间2011年11月3日下午3时，洛杉矶，好莱坞派拉蒙影城。在这座可容纳干人的剧场内，佳能簇新的CINEMAEOS系统高调推出。

简介：回望好莱坞发布会，五百多人云集在派拉蒙剧场里，会令人感觉这不单是一场器材的发布会，更是象征着文化上一种新的可能性起源的盛会。