Application of modal analysis for extraction of geometrical features of biological objects set

This article presents application of modal analysis for the computation of data base of biological objects set and extraction of three dimensional geometrical features. Authors apply two types of modal analysis: physical (vibration modes) and empirical (PCA - Principal Component Analysis) for human bones. In this work as the biological objects the fifteen human femur bones were used. The geometry of each bone was obtained by using of 3D structural light scanner. In this paper the results of vibration modal analysis (modes and frequencies) and PCA (mean shape and features - modes) were presented and discussed. Further the possibilities of application of empirical modes for creation three dimensional anthropometric data base were presented.