Godtliebsen, FredMarron, J SChaudhuri, Probal2012-11-192012-11-192004Image and Vision Computing, v 22, p 1093-1104http://hdl.handle.net/10263/4868enKernel smoothingCurvatureScale spaceStatistical significancesiZerGradientStatistical significance of features in digital imagesArticle