Note: Improving perception of brain structure using fiber clustering | SPIE Newsroom Jan Klein, Anna Vilanova, Peter Ledochowitsch, Philip Bittihn, Horst K. Hahn, Olaf Konrad, Jan Rexilius, and Heinz-Otto Peitgen The imaging of axonal fibers and connectivity in the human brain are improved by grouping anatomically similar fibers. 31 July 2007, SPIE Newsroom. DOI: 10.1117/2.1200707.0771 Diffusion tensor imaging (DTI) is an emerging technique in magnetic resonance imaging. Based on DTI data, fiber tracking now enables the geometrical reconstruction of such tracts.1 However, when attempting to visualize individual fibers, cluttered images are often generated, which makes insights difficult to obtain. Figure 1. Fiber-clustering algorithms have accordingly been developed to group anatomically similar or related fibers into bundles, as shown in Figure 1. We introduce a framework for automatic and robust fiber clustering. Fiber similarity Figure 2. Spectral fiber clustering Advanced validation framework In the literature, several clustering techniques have been proposed. Figure 3.
Hubert Lambin - Google+ - Je m'apprête à partager cette vidéo sous le sigle… Bloom's Taxonomy Bloom's wheel, according to the Bloom's verbs and matching assessment types. The verbs are intended to be feasible and measurable. Bloom's taxonomy is a classification of learning objectives within education. It is named for Benjamin Bloom, who chaired the committee of educators that devised the taxonomy, and who also edited the first volume of the standard text, Taxonomy of Educational Objectives: The Classification of Educational Goals. Bloom's taxonomy refers to a classification of the different objectives that educators set for students (learning objectives). Bloom's taxonomy is considered to be a foundational and essential element within the education community. History[edit] Although named after Bloom, the publication of Taxonomy of Educational Objectives followed a series of conferences from 1949 to 1953, which were designed to improve communication between educators on the design of curricula and examinations. Cognitive[edit] Knowledge[edit] Comprehension[edit] Application[edit]