@ARTICLE\{IMM2009-05049, author = "S. G. H. Erbou and M. Vester-Christensen and R. Larsen and L. B. Christensen and B. K. Ersb{\o}ll", title = "Comparison of sparse point distribution models", year = "2009", keywords = "Image analysis, Point distribution models, Varimax, Sparse {PCA,} Robotic Tools", journal = "Machine Vision and Applications", volume = "", editor = "", number = "", publisher = "Springer", note = "DOI: 10.1007/s00138-009-0203-1", url = "http://www2.compute.dtu.dk/pubdb/pubs/5049-full.html", abstract = "This paper compares several methods for obtaining sparse and compact point distribution models suited for data sets containing many variables. These are evaluated on a database consisting of {3D} surfaces of a section of the pelvic bone obtained from {CT} scans of 33 porcine carcasses. The superior model with respect to sparsity, reconstruction error and interpretability is found to be a varimax rotated model with a threshold applied to small loadings. The models describe the biological variation in the database and are used for developing robotic tools when automating labor-intensive procedures in abattoirs." }