Method for calculating vertical relative displacement of breasts in Python environment

A relative displacement and breast technology, applied in the field of breast health sports biomechanics, can solve the problems of increasing the experimental content and increasing the amount of data processing, and achieve the effect of improving data processing efficiency, improving data accuracy, and ensuring data accuracy.

Active Publication Date: 2021-03-19
SHANGHAI UNIV OF ENG SCI
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Problems solved by technology

This not only increases the experimental content, but also increases the amount of data processing

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  • Method for calculating vertical relative displacement of breasts in Python environment

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Embodiment

[0028] A method of calculating the vertical relative displacement of the breast in the Python environment, including the following steps:

[0029] S1, data read: Get the original data in a certain movement via a three-dimensional motion capture system, and read the data into python; at least two categories of coordinates of the original data, where the coordinates of one class Represents the human body torso in the movement, another class of coordinates represent the breasts in the movement:

[0030] The three-dimensional motion capture system uses a prior art, for example, NDI, QUALYSIS, and VICON and other devices; in this embodiment, raw data is obtained by two Optotrak 3020 position sensors (200 Hz; Northern Digital, Ontario, Canada). The frequency is 100 Hz, that is, each frame data interval 0.02s, a total of 6000 frames, and the motion state is running on the treadmill at the speed of the actual bra.

[0031] In this embodiment, the shadow of the breast in the movement of th...

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Abstract

The invention discloses a method for calculating vertical relative displacement of breasts in a Python environment. The method comprises the following steps: S1, reading data; s2, calculating verticalrelative coordinates of the breasts; s3, calculating a human body trunk motion maximum value point to obtain a gait period; s4, slicing the vertical relative coordinates of the breasts; s5, calculating breast vertical relative displacement in a single period; s6, eliminating abnormal data of the vertical relative displacement value of the breast; and S7, recalculating the average value of the vertical relative displacement values of all the remaining breasts after the abnormal values are removed in the step S6, wherein the recalculated average value is the vertical relative displacement of the breasts. According to the method, on the basis of ensuring the accuracy of breast vertical relative displacement calculation, data can be rapidly processed in batches, and the data processing efficiency is improved on the basis of ensuring the data accuracy.

Description

Technical field [0001] The present invention relates to a method of calculating the vertical relative displacement of the breast in the Python environment, belonging to the field of breast health sports biomechanics. Background technique [0002] Movement causes uncomfortable breasts and even pain is a disorder that women participate in sports activities. The displacement of the breast relative to the torso caused the breast in uncomfortable breast, and even cause pain, this symptom affected 70% of women. Dramatic breast relative displacement is the main reason for the repeated excessive stretching of the Coopel ligament is an uncomfortable or even pain. Breast-vertical relative displacement is the largest, most prone to calculate and the most common indicators in breast displacement. [0003] At present, the study of breast health sports biomechanics is the calculation of breast vertical relative displacement mainly uses the following three software: Microsoft Excel, Matlab, Vis...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G16H50/20
CPCG16H50/20
Inventor 陈晓娜孙光武李艳梅谢红
Owner SHANGHAI UNIV OF ENG SCI
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