A Fine Driving Method for Spine Motion Model

Abstract

The invention discloses a fine driving method of a spinal movement model, and relates to the driving method of the spinal movement model. The method is aimed at solving the problem that there is no driving method for independently driving each independent vertebral body in a spinal model according to optical marking points obtained through motion capturing at present. Optimal marking points are set at the third, seventh and twelfth vertebral body spinous process positions on a chest, and the space coordinates of all the optical marking points under human body daily activities are captured; onthe basis of a standard model FacetJointModel in an Anybody model library, the fixed coordination proportion constraint between the vertebral bodies is removed; the improved FacetJointModel is drivenby the captured space coordinates of the optical marking points, and therefore the fine driving of the spinal movement model is realized. The method is suitable for fine driving the spinal movement model.

Description

technical field [0001] The invention belongs to the field of motion capture and analysis of human spine motion characteristics, and in particular relates to a driving method of a spine motion model. Background technique [0002] Low back pain is a common disorder of the bones, muscles, and nervous system. In the past 20 years, low back pain has always been at the top of the disease factors affecting the year of labor loss, and its influence has shown an increasing trend year by year. At present, the total number of low back pain patients in the world has reached 1.7 billion. In my country, the number of low back pain patients has already exceeded 200 million. Patients with low back pain often show abnormal spinal motion patterns, and unreasonable motion patterns can easily cause local overload of spinal joints, thereby accelerating the degeneration of intervertebral discs and causing various lumbar diseases. Therefore, reasonable and effective assessment of spinal motion ...

AI Technical Summary

Problems solved by technology

In these two models, the optical markers are only used to drive the thorax, and the intervertebral motion of the spine is coordinated with a fixed motion rhythm, such as figure 1 As shown, it is impossible to reflect the difference in the relative movement of the vertebral bodies between different individuals, let alone the relative movement of the vertebral bodies in patients with low back pain and healthy people.

At present, there is no driving method that can independently drive each independent vertebra in the spine model according to the optical marker points acquired by motion capture, so as to achieve a more accurate assessment of the spine motion model

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