Method for biophysical analysis and identification of human body based on pressure accumulated footprint image

Abstract

The invention discloses a method for biophysical analysis and identification of a human body based on a pressure accumulated footprint image, comprising the following steps of: acquiring a pressure accumulated footprint image and preprocessing the image; generating corresponding projection matrixes of physiologic information and identity information and a corresponding model vector of the pressure accumulated footprint image in a low-dimensional space aiming at groups of different people marked with different sexes, different intervals and a physical index interval and pressure accumulated footprint images by applying a subspace method; for the non-marked pressure accumulated footprint images, generating non-marked image vectors in the low-dimensional space through acquired projection matrixes of different physiologic information and identity information; and calculating and comparing the distance between the vectors of the non-marked pressure accumulated footprint images and the model vectors of the pressure accumulated footprint images of different physiologic information and identity information by using a nearest neighbor algorithm to obtain the discrimination of the non-marked pressure accumulated footprint images corresponding to the sexes, the age intervals, the physical index intervals and the identities of people.

Description

technical field [0001] The invention belongs to the field of pattern recognition, and relates to methods for analyzing, inferring and identifying basic physiological information of a human body based on biological characteristics of human footprints. Background technique [0002] Biometric identification technology refers to the technology that the computer conducts personal identification based on some inherent physiological characteristics (fingerprint, iris, face, DNA, etc.) or behavioral characteristics (gait, etc.) of the human body. After the 911 terrorist attacks in the United States and the London bombings, countries have paid more and more attention to technologies such as identification. The first-generation biometric identification technology represented by fingerprint and iris has been practically applied in many commercial and legal institutions. However, although the first-generation biometric technology has reached a considerable level of accuracy, the way to...

AI Technical Summary

Problems solved by technology

In the existing criminal investigation and other fields, the empirical analysis method of footprint shape is often only used as an auxiliary means, and its due role has not been fully applied

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