Parameters of analytic morphometry: proposal for a symmetry evaluator
Pesce Delfino, V.; Lenoci, R.; Potente, F.; Lettini, T.; Vacca, E.; Prete, A.; Ricco, R.
Bollettino della Societa Italiana di Biologia Sperimentale 61(2): 235-241
1985
ISSN/ISBN: 0037-8771 PMID: 3994842 Document Number: 253159
A morphometrical analytical evaluator of asymmetries of biological structures bonded by a closed curve was suggested. A second degree equation couple was found in order to detect, respectively according X and Y axis, first main asymmetry whereas third degree equation revealed first and second asymmetry for both abscissa and ordinate values. Final evaluator, named S.A.E. (Shape Analytical Evaluator), was computed as arch/cord ratio between function curve and its cord, it was equal to 1 for circles and any ellipse and symmetrical shapes whereas it was of different value for asymmetrical shapes.