Device and method for detecting cervical spine activity

Abstract

The invention discloses a cervical motion detecting device and method. The device comprises a marking headband, a signal acquisition device and a microprocessor, the marking headband comprises a marking plate, the center of the marking plate is marked with two vertical marking lines, and one of which is long and the other one is short; the signal acquisition device collects the gray scale information and the depth information of black mark lines on the marking plate in real time, and transmits the collected image information to a microprocessor; the microprocessor analyzes the image and measures the length of the mark lines, the gray scale information and the depth information to calculate cervical motion information. The device has the advantages of simple structure, convenient installation and low cost, and a marking device is light and easy to wear, which can effectively reduce the neck burden of a tested person, and avoid the resistance of a test subject to a measuring instrument.The measuring method is fast, accurate and easy to implement, and can effectively reduce the testing time.

Description

technical field [0001] The present disclosure relates to the technical fields of machine vision and medical equipment, in particular to a device and method for detecting the range of motion of the cervical spine. Background technique [0002] At present, the inventor has found in the research that the current situation and existing problems of the detection of cervical spine activity are: the existing technology of cervical spine activity measurement is inclinometer measurement, cervical spine activity measuring instrument, photographic analysis, CT three-dimensional reconstruction measurement, tape measure , visual inspection. [0003] The inclinometer usually measures the average angular offset between the end point and the starting point in an activity cycle, the measurement accuracy is low, and the rotation activity cannot be effectively measured. The cervical spine mobility measuring instrument combines an inclinometer and a compass to measure the cervical spine mobili...

AI Technical Summary

Problems solved by technology

[0003] The inclinometer usually measures the average angular offset between the end point and the starting point in an activity cycle, the measurement accuracy is low, and the rotation activity cannot be effectively measured

The cervical spine activity measuring instrument combines an inclinometer and a compass to measure the cervical spine activity. Although it has good accuracy and reliability, the structure is complex and the measurement process is cumbersome, which increases the resistance of the testees.

[0004] The photographic analysis method is easy to operate and has high measurement accuracy. However, it is necessary to attach easily identifiable marks on the body surface of the test subject before the measurement, which will cause discomfort to the test subject. Generally, multiple cameras are required to collect data, and the pose calculation algorithm is complex, and the calculation is difficult. large

CT 3D reconstruction has good resolution and high measurement accuracy, but the measurement time is long, the calculation is complicated, and the radioactivity is large

Tape measurement and visual inspection methods are simple, but rely on the experience of the measurer, the measurement accuracy is low, the efficiency is low, and the measurer's work intensity is high

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