title: Directional analysis of digitized three-dimensional images by configuration counts.
abstract: A method for estimating the orientated rose of normal directions of a three-dimensional (3D) set Z from a digitization of Z, i.e. a voxel image, is presented. It is based on counts of informative configurations in n x n x n voxel cubes. An algorithm for finding all informative configurations is proposed and an estimation procedure is described in detail for the case n= 2. The presented method is a 3D version of a method of estimating the orientated rose of binary planar images using n x n configurations. A new feature is the design-based approach, being more appropriate for biomedical image analysis than the formerly applied model-based approach.
authors.affiliation: Medical Electronics Division, Institute of Electronics, Technical University of Lodz, Wolczanska 223, 90-924 Lodz, Poland.
authors.forename: P
authors.initials: P
authors.lastname: Gutkowski
authors.forename: E B V
authors.initials: EB
authors.lastname: Jensen
authors.forename: M
authors.initials: M
authors.lastname: Kiderlen
mesh_terms: D000465:Algorithms; D016880:Anisotropy; D007091:Image Processing, Computer-Assisted / Q000379:methods*; D021621:Imaging, Three-Dimensional / Q000379:methods*; D008962:Models, Theoretical