Motion injury early warning method based on laser speckle

A technology of laser speckle and movement, which is applied in medical science, sensors, blood flow measurement, etc., can solve problems that are not suitable for movement process monitoring, and achieve good real-time performance, good safety, and accurate evaluation results

Inactive Publication Date: 2018-11-02
UNIV OF SHANGHAI FOR SCI & TECH
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Problems solved by technology

[0004] At present, the processing and analysis of laser speckle images mainly include spatial contrast analysis (Laser Speckle Spatial Contrast Analysis, LSSCA) and temporal contrast analysis (Laser Speckle Temporal Contrast Analysis, LSTCA), such as: "A laser speckle blood flow imaging analysis method" (Chinese Invention Patent CN101485565)...

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  • Motion injury early warning method based on laser speckle
  • Motion injury early warning method based on laser speckle
  • Motion injury early warning method based on laser speckle

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Embodiment Construction

[0047] An excessive motion early warning method based on laser speckle blood flow imaging technology, which is mainly divided into four parts: the first part is to take the original speckle image and perform preprocessing to eliminate jitter; The image is used as the initial value of the benchmark to reduce the changes caused by other uncertain factors such as noise in the measurement process; the third part is to calculate the contrast value of the speckle image, and compare and analyze it in a time series; the fourth part is to calculate the measured Organizational hemodynamic indicators, and early warning of excessive exercise.

[0048] The hardware equipment of the present invention includes: a semiconductor laser, a beam expander, a near-infrared CCD camera, and an optical filter.

[0049] Such as figure 1 The flow chart of the excessive motion early warning method based on laser speckle blood flow imaging technology is shown, and the technical solution of the present in...

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Abstract

The invention relates to a motion injury early warning method based on laser speckle, which comprises the following steps: an original speckle image is shot and the elimination of shake preprocessingis carried out; the speckle image in a static state is taken as a reference initial value, so that the change caused by other uncertain factors such as noise in the measurement process is reduced; thelining ratio of the speckle image is calculated and comparative analysis under a time sequence is carried out; the blood dynamic index of the measured tissue is calculated, and the excessive motion is early warned. Based on the rapid laser speckle image processing algorithm, the information obtained in a time sequence is strong in correlation, the blood power indexes of local body tissues can beeffectively monitored, the local muscle group state of an athlete can be objectively evaluated, and compared with the existing motion monitoring tool, more attention should be paid to blood vessel andmuscle status monitoring of local body parts. The method has the advantages of good real-time performance, good safety, accurate evaluation effect, simple operation mode and the like.

Description

technical field [0001] The invention relates to an image processing and application method, in particular to a laser speckle-based sports injury warning method. Background technique [0002] In the process of sports training, how to judge the physical indicators of athletes is of great value for the scientific arrangement of training volume. Unreasonable amount of exercise will greatly reduce the effect of exercise, and even cause damage to the health of athletes. Existing motion monitoring systems and methods use data collectors to collect motion sign data and then perform related analysis, such as: "A motion monitoring system and method" (Chinese invention patent CN107670262A). However, the contact monitoring method will bring inconvenience to normal sports training, and the traditional monitoring method is mainly aimed at the cardiopulmonary function of the whole body. [0003] Laser speckle blood flow imaging technology is a new blood flow detection method that has eme...

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Application Information

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IPC IPC(8): A61B5/026
CPCA61B5/0261
Inventor 杨晖李宜璋孔平
Owner UNIV OF SHANGHAI FOR SCI & TECH
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