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Abnormal gait identification method capable of facilitating screening Parkinsonism

A technology for abnormal gait recognition and Parkinson's disease, applied in character and pattern recognition, instruments, computer components, etc., can solve problems such as lack of research

Inactive Publication Date: 2015-08-12
LONGYAN UNIV
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  • Abstract
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AI Technical Summary

Problems solved by technology

However, how to model the dynamics of the nonlinear gait system and distinguish between the two groups of people based on the differences in gait system dynamics to assist in the screening and detection of Parkinson's disease is lack of corresponding research, which is one of them. Difficult questions

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  • Abnormal gait identification method capable of facilitating screening Parkinsonism
  • Abnormal gait identification method capable of facilitating screening Parkinsonism
  • Abnormal gait identification method capable of facilitating screening Parkinsonism

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Embodiment Construction

[0057] like figure 1 As shown, an abnormal gait recognition method for auxiliary screening of Parkinson's disease of the present invention comprises the following steps:

[0058] Step 1. Collect the plantar pressure characteristic data of each Parkinson's disease patient and healthy normal person through the plantar pressure sensor to form a set of gait characteristic variables. The collected plantar pressure data of several Parkinson's disease patients and healthy normal people The pressure feature data form a training set, and the plantar pressure feature variable extraction process is as follows:

[0059] The gait database used in the present invention is the online gait analysis database PhysioNet provided by Hausdorff et al.

[0060] ( http: / / www.physionet.org / physiobank / database / gaitpdb ), the gait signal is acquired through the pressure sensor placed on the sole of the tester, and the sampling frequency of the signal acquisition system is 100Hz. At present, the gait...

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Abstract

The invention discloses an abnormal gait identification method capable of facilitating screening Parkinsonism. The method is characterized in that the gait plantar pressure characteristics can be extracted, and the modeling and the identification of the neural network of the gait system of the normal healthy people and the patients suffering from the Parkinsonism can be dynamically carried out; the constant neutral network can be established; a dynamic estimator can be built by using the constant neutral network, and based on the difference between the gait modes of the normal healthy people and the patients suffering from the Parkinsonism in the gait system dynamics, the abnormal gait caused by the Parkinsonism and the normal gait of the normal healthy people can be distinguished according to the minimum error principle, and the screening detection of the Parkinsonism can be facilitated. By arranging a pressure sensing floor system or wearing the special shoes provided with the pressure sensor insole, the plantar pressure characteristics can be acquired, and the abnormal gait caused by the Parkinsonism and the normal gait of the normal healthy people can be distinguished conveniently, simply, and non-invasively, and therefore the daily gait monitoring of the family members can be realized, and the screening detection of the Parkinsonism can be facilitated.

Description

technical field [0001] The invention relates to an abnormal gait recognition method based on plantar pressure characteristics for assisting screening of Parkinson's disease. Background technique [0002] Human walking motion is a precise and complex process, and its motion pattern is determined by the dynamic interaction between the central nervous system and feedback mechanisms. Some diseases of aging, as well as some neurological diseases, can cause problems with this process. When a person walks, there is a signal transduction pathway between the motor nerve that produces movement awareness in the central nervous system and the muscles that produce action in the lower limbs. If there is a movement signal transmission obstacle in this pathway, the direct symptom is the abnormal gait of the person. Common diseases in the elderly, such as Parkinson's Disease (Parkinson's Disease), etc., will cause abnormal gait, so abnormal gait can be used for auxiliary screening and detec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G06K9/66
Inventor 曾玮王颖
Owner LONGYAN UNIV
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