A method is provided clustering data points in a multidimensional dataset
in a multidimensional image space that comprises generating a
multidimensional image from the multidimensional dataset; generating a
pyramid of multidimensional images having varying resolution levels by
successively performing a pyramidal sub-sampling of the multidimensional
image; identifying data clusters at each resolution level of the pyramid
by applying a set of perceptual grouping constraints; and determining
levels of a clustering hierarchy by identifying each salient bend in a
variation curve of a magnitude of identified data clusters as a function
of pyramid resolution level.