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Computer aided gait analysis method based on monocular video

A computer-aided and analysis method technology, applied in the application field of computer analysis technology, can solve problems such as discontinuous data acquisition, and achieve the effect of overcoming inaccurate motion tracking

Inactive Publication Date: 2007-05-30
HUAZHONG UNIV OF SCI & TECH
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Problems solved by technology

[0007] The purpose of the present invention is to provide a computer-aided gait analysis method based on monocular video, which effectively solves the problem of discontinuous data acquisition caused by the self-occlusion phenomenon of the movement process in monocular video, and improves the performance of the movement process. Accuracy of Parameter Calculation

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  • Computer aided gait analysis method based on monocular video

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Embodiment Construction

[0021] The present invention will be further described in detail below by taking the calculation of motion parameters of the knee and ankle joints of the subject as an example. The method of the present invention is applicable to the calculation of joint motion parameters of patients with any motor dysfunction.

[0022] As shown in Figure 1, the steps of the present invention are:

[0023] (1) Add knee and ankle markers and additional markers at the knee and ankle joints of the subject (outside the sagittal plane), and capture video images of the subject walking on the prescribed trail. Describe this step in detail:

[0024] (1.1) As shown in Figure 2, paste a red triangle mark point A on the left knee joint of the subject, paste a red square mark point B on the ankle joint, paste a black triangle mark point C on the right knee joint, and paste a red triangle mark point C on the ankle joint. Paste a black square marking point D at the joint.

[0025] (1.2) As shown in Figure...

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Abstract

The invention discloses an auxiliary gait analyzing method based on single-visual computer, which is characterized by the following: adding auxiliary marker at joint part to solve self-barrier problem in the moving course; utilizing single-visual camera to shoot real-time walking image of detector; processing the image; recognizing joint marking point or auxiliary marker; obtaining the moving state according to the joint of detector if recognizing; otherwise, obtaining the moving state according to the identified auxiliary marker and relative relationship of marker and joint of detector; calculating a series of moving parameter according to moving state of detector.

Description

technical field [0001] The invention belongs to the application field of computer analysis technology of medical images, and in particular relates to a computer-aided gait analysis method based on monocular video. Background technique [0002] With the continuous improvement of the material level and the accelerated pace of life, the prevalence of cerebrovascular diseases has increased in recent years. Although the application of new clinical diagnostic techniques and the continuous improvement of the success rate of rescue have greatly reduced the mortality rate of cerebrovascular diseases in the acute stage, in general , with the prolongation of the onset time, the hope of recovery of strength and motor function of stroke patients will gradually decrease, and the quality of life will be seriously affected. According to statistics, more than 70% of cerebrovascular disease patients in China have sequelae, which bring mental and physical pain to patients. The great pain in li...

Claims

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Application Information

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IPC IPC(8): A61B5/11G06T7/00
Inventor 宋恩民姜娈金人超
Owner HUAZHONG UNIV OF SCI & TECH
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