System for description and identification of individuals

A system for the analysis and automated identification of a human face is described. The analysis of a human face is defined as an individual description of the face given in the form of its subobjects and their relations. Model-based analysis of a human face is founded on the anthropological model of a human face in norma facialis. The system consists of preprocessing algorithms based on a contour determining operator, the Hough transform (for the determination of the approximate position of the head, face, and the eye region), and of the integral projection of the contour picture. The shape of the integral projection in the form of a string matches to the model. The similarity measure for strings is expressed in the form of Levenstein´s metric. The methods described were used to process 40 pictures of male human faces. The system is realised on a PC AT computer.