Identity recognition method of long-distance infrared photography

Abstract

Provided is an identity recognition method of long-distance infrared photography. The recognition method comprises following steps of: firstly, extracting and recognizing gait characteristics, fixing the position of a camera, making a shooting angle vertical to the walking direction of an object to the shot such that an outline image of a standard side surface is extracted from walking sequences of video shooting; secondary, calculating gait periods and calculating oscillation distance of each side-surface outline image of one walking sequence; and thirdly, calculating instantaneous gait energy map, uniformly designating one moment as a critical moment in each gait period and naming each critical moment as an instantaneous photo. The identity recognition method of long-distance infrared photography has following beneficial effects: the identity recognition method is much simpler than biological recognition technology and has better adaptability of low-quality side-surface outlines; and the method helps prevent crime.

Description

Technical field: [0001] The invention relates to a method for measuring the movement of human limbs, in particular to an infrared camera long-distance identification method. Background technique: [0002] Biometric technology uses the characteristics of the human body for identity verification. These features include fingerprints, voice, face, iris, DNA, signature actions, walking gait, etc. Unlike other biometric technologies, gait recognition can be carried out at a long distance. Although the face is blurred at a certain distance, the gait is clearly visible. Gait recognition is also non-compulsive, does not require the recognized person to cooperate deliberately, makes the recognized person difficult to detect, and has the characteristics of being difficult to hide and imitate. , so the study of gait is helpful to apprehend criminals, but there is not much research on gait recognition in China at present, and there is no new progress. Invention content: [0003] The p...

AI Technical Summary

Problems solved by technology

[0002] Biometric technology uses the characteristics of the human body for identity verification. These features include fingerprints, voice, face, iris, DNA, signature actions, walking gait, etc. Unlike other biometric technologies, gait recognition can be carried out at a long distance. Although the face is blurred at a certain distance, the gait is clearly visible. Gait recognition is also non-compulsive, does not require the recognized person to cooperate deliberately, makes the recognized person difficult to detect, and has the characteristics of being difficult to hide and imitate. , so the study of gait is helpful to arrest criminals, but there is not much research on gait recognition in China at present, and there is no new progress