Generalized multiresolution hierarchical shape models via automatic landmark clusterization

  • Authors
  • Cerrolaza, Juan José; Villanueva, Arantxa; Reyes, Mauricio; Cabeza, Rafael; González Ballester, Miguel Ángel; Linguraru, Marius George
  • UPF authors
  • GONZALEZ BALLESTER, MIGUEL ANGEL;
  • Type
  • Scholarly articles
  • Journal títle
  • Lecture Notes in Computer Science / Artificial Intelligence
  • Publication year
  • 2014
  • Volume
  • 8675
  • Pages
  • 1-8
  • ISSN
  • 0302-9743
  • Publication State
  • Published
  • Abstract
  • Point Distribution Models (PDM) are some of the most popular shape description techniques in medical imaging. However, to create an accurate shape model it is essential to have a representative sample of the underlying population, which is often challenging. This problem is particularly relevant as the dimensionality of the modeled structures increases, and becomes critical when dealing with complex 3D shapes. In this paper, we introduce a new generalized multiresolution hierarchical PDM (GMRH-PDM) able to efficiently address the high-dimension-low-sample-size challenge when modeling complex structures. Unlike previous approaches, our new and general framework extends hierarchical modeling to any type of structure (multi- and single-object shapes) allowing to describe efficiently the shape variability at different levels of resolution. Importantly, the configuration of the algorithm is automatized thanks to the new agglomerative landmark clustering method presented here. Our new and automatic GMRH-PDM framework performed significantly better than classical approaches, and as well as the state-of-the-art with the best manual configuration. Evaluations have been studied for two different cases, the right kidney, and a multi-object case composed of eight subcortical structures.
  • Complete citation
  • Cerrolaza, Juan José; Villanueva, Arantxa; Reyes, Mauricio; Cabeza, Rafael; González Ballester, Miguel Ángel; Linguraru, Marius George. Generalized multiresolution hierarchical shape models via automatic landmark clusterization. Lecture Notes in Computer Science / Artificial Intelligence 2014; 8675( ): 1-8.
Bibliometric indicators
  • 1 times cited Scopus
  • Índex Scimago de 0.354(2014)