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Human gait recognition method and system based on dual-band radar micro-Doppler fusion

A gait recognition and radar system technology, applied in the field of radar, can solve problems such as inability to work around the clock, influence of the surrounding environment, and limited application range, so as to improve reliability, increase utilization, and eliminate redundancy and contradictions Effect

Active Publication Date: 2019-11-22
TSINGHUA UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Traditional human gait recognition mostly uses optical imaging or optical video processing technology, which cannot work around the clock, is greatly affected by the surrounding environment, and has low recognition accuracy, which greatly limits its application range.

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  • Human gait recognition method and system based on dual-band radar micro-Doppler fusion
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  • Human gait recognition method and system based on dual-band radar micro-Doppler fusion

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Embodiment Construction

[0025] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are the Some, but not all, embodiments are invented. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0026] see figure 1 , this embodiment discloses a human gait recognition method based on dual-band radar micro-Doppler fusion, including:

[0027] S1. Obtain the target echo collected by the dual-band radar system;

[0028] S2. Using a time-frequency analysis tool to perform time-frequency analysis on the micro-Doppler information of the target echo to obtain a time-f...

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Abstract

The invention discloses a human body gait recognition method and system based on dual-band radar micro-Doppler fusion, which can improve the accuracy of human body gait recognition. The method includes: S1. Acquiring the target echo collected by the dual-band radar system; S2. Using a time-frequency analysis tool to perform time-frequency analysis on the micro-Doppler information of the target echo to obtain a time-frequency diagram of the target's gait; S3 . Extract features from the time-frequency diagram, wherein the features include period, bandwidth and Doppler offset; S4. Perform data fusion on the features, and classify by inputting the result of data fusion into a classifier Recognize and get the target gait recognition result.

Description

technical field [0001] The invention relates to the field of radar technology, in particular to a human gait recognition method and system based on dual-band radar micro-Doppler fusion. Background technique [0002] At present, airport security checks mainly rely on guides to guide passengers to line up, which takes a long time and is inefficient. If the posture and gait of the target human body can be correctly and quickly identified through human gait recognition, passengers can be divided into different types and queued in different lines, which can reduce the queuing time, improve the efficiency of security checks and reduce airport costs. Human gait recognition belongs to the field of pattern recognition, and has received more and more attention in recent years, and its importance has become increasingly prominent. Traditional human gait recognition mostly uses optical imaging or optical video processing technology, which cannot work around the clock, is greatly affect...

Claims

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Application Information

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IPC IPC(8): G06K9/62G06K9/00
CPCG06V40/25G06F18/2411
Inventor 李刚杨乐
Owner TSINGHUA UNIV