ABSTRACT
The chapter presents the methods of biometric identification based on images of the geometric shape of the auricle. The chapter describes two variants of biometric identification, which use special means to isolate the image of the auricle, as well as methods for processing images obtained without special means of isolating the auricle. For biometric identification by the geometric shape of the auricle, the Radon transform was used, with the help of which six projections of the Radon transform were formed. This number of projections was formed using cellular automata with a hexagonal coating. Methods are described for extracting the image of the auricle in an image that contains adjacent areas of the human body (areas of the head and neck, hair). With the help of a preliminary analysis of six Radon projections, unnecessary elements are removed to obtain a clear image of the human auricle.
