science-review.ru
Scientific journal
Scientific Review. Technical science
ISSN 2500-0799
ПИ №ФС77-57440
ISSN 2500-0799
ПИ №ФС77-57440
DEVELOPMENT OF AUTOMATED SYSTEM OF AN ACCESS CONTROL BASED ON ANALYSIS OF THE NASOLABIAL MUSCLES DYNAMICS OF THE HUMAN FACE
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The possibility of using an automated system of a contactless access control, based on an analysis of the nasolabial muscles dynamics of the human face, is considered in this article. The developed contactless system analyzes the face geometry in dynamics by formalizing the procedure lip reading in contrast to the physiological biometrics recognition. Accumulating merits of biometric systems, the proposed system eliminates the possibility of false triggering of human identification by complexation of the speech signal and the corresponding nasolabial muscles change of the face. The main source of data input is polychromatic raster image, on which the process of mouth segmentation and the feature points search are performed, the points are substantiating the change of nasolabial muscles corresponding to a certain phoneme. As a result of the research work, a geometric model of the human face is constructed, based on a system of coding facial movements, and which is implemented using the active contour method. The active contour method allowed to identify a set of points from which is selected a subset, and are connected in such a way that they form descriptors which characterized the dynamics of the muscles of the mouth. In work constructed the layout of software, which automatically determines the descriptors of the mouth and their values.