Gait feature extraction method and pedestrian identity recognition method based on gait features

Abstract

The invention discloses a gait feature extraction method and a pedestrian identity recognition method based on gait features, and the method comprises the following steps: A, obtaining a region wherea pedestrian is located as a region of interest for each frame of gait image in a gait image sequence; B, segmenting a pedestrian target in the region of interest; C, acquiring joint point position information of the pedestrian target in each frame of gait image; D, based on joint point position information of the pedestrian target in each frame of gait image of the gait image sequence, carrying out gait period detection; and E, synthesizing a gait energy image corresponding to the gait image sequence according to the detected gait period, and taking the gait energy image as gait characteristics; based on the extracted gait characteristics, judging or identifying the pedestrian target by using a judgment network and a comparison network. According to the method, the problem of insufficientsample size in small sample classification in the field of gait recognition is well solved, and the algorithm is good in real-time performance.

Description

technical field [0001] The invention belongs to the field of image information processing, and in particular relates to a gait feature extraction method and a pedestrian identification method based on gait features. Background technique [0002] With the rapid development of modern society, it has become a new normal to use informatization and intelligent means to ensure social security. Especially after the National Development and Reform Commission proposed the smart city construction strategy, it is of great significance to build a safe and convenient smart city through modern means. In the construction of smart cities, social security issues are the most important part and have attracted people's attention. In the field of security, many technologies are applied to video surveillance and identity authentication. Among them, biometric identification brings great convenience to our daily life, such as face, fingerprint, and iris recognition. Although these biometric feat...

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a gait feature extraction method and a pedestrian identification method based on gait features in view of the deficiencies in the prior art, using a deep learning algorithm to extract gait featur...

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