%0 Journal Article
%T 利用空间矩提取亚象素角特征
%A 王社阳
%A 宋申民
%A 强文义
%A 陈兴林
%J 自动化学报
%P 713-719
%D 2005
%X ？Anovelsubpixelcornerdetectionmethodbasedonspatialmomentisdevelopedinthispaper.Firstly,thespatial-moment-generatingfunction,gradientmagnitudeandvariationofgradient-directioncornerareusedasthedecisionruleofcornerdetectionbyanalyzingthemathematicalformulaofcorner-modelspatialmoment.ThenNon-maxsuppressiontechniqueisutilizedtodetectthevertexoffeaturecorner.Finally,inordertoimproveitslocalizationperformance,subpixelcornerdetectionisimplementedbythebilinearinterpolationandNewtoniterationmethod.ExperimentsillustratethatthespatialmomentcornerdetectorhasbetterrobustnessandlocalizationperformancethanKitchendetectorandHarrisdetector.
%K Spatialmoment
%K cornerdetection
%K gradient-directioncorner
%K bilinearinterpolation
%U http://www.aas.net.cn/CN/abstract/abstract15999.shtml