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Modeling method and application of visual touch fusion whole-body gait motion model

A modeling method and motion model technology, applied in the field of pattern recognition, to achieve the effect of increasing the feature base, convenient calculation, and avoiding instability

Active Publication Date: 2021-03-12
HEBEI UNIV OF TECH
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  • Abstract
  • Description
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Problems solved by technology

[0006] Aiming at the deficiencies of existing gait modeling methods, the technical problem to be solved by the present invention is to provide a whole-body gait motion model and its application for gait recognition-oriented visual-touch fusion.

Method used

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  • Modeling method and application of visual touch fusion whole-body gait motion model
  • Modeling method and application of visual touch fusion whole-body gait motion model
  • Modeling method and application of visual touch fusion whole-body gait motion model

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Embodiment

[0083] Analyzing the force of the human body during walking, and establishing a tactile feature model about the gait movement of the human body, mainly includes the following steps:

[0084]Taking the supporting foot as the starting point of the model, through the dynamic analysis of the whole body, the ground support force model in the vertical direction is established. The present invention establishes the whole body human gait motion model through the ground support reaction force, so only the human gait motion is discussed. The force experienced in the vertical direction during the process. In the gait movement, the external force on the human body mainly comes from the reaction force of the ground, which is recorded as Let M be the total mass of the human body, then the gravity of the human body is Such as figure 2 . According to Newton's second law of mechanics, the dynamic equation of human body force can be expressed as:

[0085] N y -Mg=Ma y

[0086] where M...

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Abstract

The invention relates to a modeling method and application of a visual touch fusion whole-body gait motion model. The method comprises the following steps: simplifying a whole-body skeleton structure,and dividing a human body into 11 rigid bodies which comprise left and right feet, left and right shanks, left and right thighs, left and right forearms, left and right big arms, a head and a thoraxand abdomen during the construction of a modeling environment; establishing a tactile characteristic model related to human gait motion, and decomposing the human body stress into the sum of productsof the mass of each part of the body and the acceleration of the centroid position in the vertical direction, namely a tactile characteristic model, wherein the acceleration a is obtained by obtaininga joint angle of each part through a visual image; expressing the acceleration of the tactile characteristic model by using the relationship between the joint angles of all parts and the connecting lines of the centroids of all parts to obtain a visual whole-body gait motion model. According to the method, aiming at the change condition of the whole body in the human body gait motion process, a visual touch whole body gait motion model with higher precision is established.

Description

technical field [0001] The invention belongs to the field of pattern recognition, and in particular relates to a modeling method and application of a whole-body gait motion model for gait recognition-oriented visual-touch fusion. Background technique [0002] With the development of computer vision and information security fields, more and more biometric technologies have been developed and utilized by people. Biometric technology is a technology for identification based on people's unique physiological or behavioral characteristics, because it will not be stolen or transferred as easily as ID cards and other documents, so it becomes reliable. [0003] Gait recognition, as a kind of biometric technology, aims to identify people by using the way people walk. Compared with other identification methods, it has become a research hotspot because of its unique long-distance. Although the amount of identification data is large and it is difficult to extract features, this identifi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G06F30/20G06F119/14
CPCG06F30/20G06F2119/14G06V40/25
Inventor 戴士杰李昱李慨霍云蕊
Owner HEBEI UNIV OF TECH
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