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Gait parameter measurement system and data processing device and method thereof

A data processing device and data processing technology, applied in measurement devices, radio wave measurement systems, surveying and navigation, etc., can solve the problems of complex operation and maintenance, high cost, and achieve the effect of short calculation time and simple calculation method

Active Publication Date: 2012-09-19
SHENZHEN GRADUATE SCHOOL TSINGHUA UNIV
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  • Application Information

AI Technical Summary

Problems solved by technology

Because these mature systems use infrared cameras and dedicated data processors, they are costly and complex to operate and maintain

Method used

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  • Gait parameter measurement system and data processing device and method thereof
  • Gait parameter measurement system and data processing device and method thereof
  • Gait parameter measurement system and data processing device and method thereof

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Embodiment Construction

[0020] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0021] figure 1 The composition of the gait parameter measurement system of an embodiment is shown. like figure 1 As shown, the gait parameter measurement system includes a data processing device 1 , a first camera 2 and a second camera 3 (ie, two video acquisition devices), a marker point 4 , an acceleration sensor 5 and a parameter output device 6 . The first camera 2 and the second camera 3 are respectively connected with the data processing device 1, and are used to capture the walking scenes of the measured person from two different positions on the front of the measured person respectively and transmit them to the data processing device 1 in real time, so as to calculate the measured person's walking scene in real time. Gait parameters (such as speed, acceleration, etc.) of the tester. The acceleration sensor 5 is connected to the data processi...

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Abstract

The invention discloses a gait parameter measurement system and a data processing device and a data processing method thereof. The method comprises the following steps of: acquiring initial positions of a marking point in two image coordinate systems corresponding to two video acquisition devices; synchronously acquiring images from videos output by the two video acquisition devices; respectively determining the positions of the marking point in the two synchronously acquired images through motion estimation and block matching search; calculating the three-dimensional coordinate of the marking point through the positions of the marking point in the two synchronously acquired images according to a double-camera imaging theory; and calculating a gait parameter according to the three-dimensional coordinate of the marking point. The device comprises five modules corresponding to the steps. The system comprises the data processing device, the marking point and the two video acquisition devices, wherein the marking point is arranged on a leg of measured personnel; and the two video acquisition devices are respectively connected with the data processing device and used for respectively capturing the walking scene of the measured personnel according to two different positions in the front of the measured personnel. The system and the device are low in cost and portable.

Description

technical field [0001] The invention relates to a gait analysis device, in particular to a gait parameter measurement system for measuring gait parameters based on two-way video, as well as its data processing device and data processing method. Background technique [0002] Total knee replacement (TKR) is a new technology for the treatment of knee joint diseases that has gradually developed in modern times. It is a treatment method that replaces damaged joints with artificial joint components, eliminates knee joint pain, and restores knee joint function. Researchers can evaluate its curative effect through various methods, such as KSS (American Knee Society Score), HSS (Hospital for Special Surgery Knee Score). However, these evaluation methods are mainly based on the evaluation of the patient's subjective and objective sensations, pain conditions, and clinical auxiliary examination results, and lack quantitative indicators. [0003] Gait analysis is a special branch of bio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C11/36G01C23/00
Inventor 吴剑徐娟娟
Owner SHENZHEN GRADUATE SCHOOL TSINGHUA UNIV
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