Microsoft Kinect-based method for evaluating motion function of upper limbs of stroke patient

Abstract

According to the evaluation method, a skeleton tracking technology and depth image data of Microsoft Kinect 2.0 are utilized, a post-stroke patient function evaluation technology based on a Brunnstrom upper limb motion function evaluation table is combined, and the evaluation method capable of judging the upper limb motion function recovery stage of the post-stroke hemiplegic patient even under the condition that a rehabilitation doctor and a therapist are absent is provided. The specific process of the evaluation method comprises the following steps: 1) initial definition: establishing a human body space coordinate system, calling articulation point parameter definitions related to evaluation actions, initializing parameter values, and setting a conditional algorithm of a basic posture; 2) action execution: enabling the hemiplegic patient to execute an evaluation action under the guidance of characters, images and sounds in a screen; 3) data acquisition: acquiring three-dimensional coordinate information of human body joint points of the patient by using a Kinect camera installed in a treatment room; 4) data analysis: decomposing the evaluation actions through an action algorithm, calculating and analyzing the obtained joint point coordinates according to the process, and judging the full degree of action execution of the patient, and carrying out the result statistics, counting the completion conditions of all the evaluation actions of the patient, and determining the recovery stage of the upper limb movement function of the patient.

Description

technical field [0001] The invention relates to the fields of human-computer interaction technology and rehabilitation evaluation technology, in particular to a Microsoft Kinect 2.0-based evaluation method for the recovery stage of upper limb motor function of stroke patients. Background technique [0002] The incidence and prevalence of stroke in my country are increasing year by year, and the age of onset is declining. At the same time, with the development and progress of medicine, the mortality rate of stroke patients has gradually decreased, and the rate of disability and the number of disabled people have continued to increase. Alleviating the dysfunction of patients and helping them return to their families and society requires the intervention of rehabilitation therapy. Rehabilitation assessment is the basis of rehabilitation treatment. Through the assessment of upper limb motor function of stroke patients, it can determine the degree of motor impairment of the pati...

AI Technical Summary

Problems solved by technology

During the evaluation process, the therapist’s physical contact with the patient and his interference with the patient’s mental state will lead to changes in the generation process of the brain motor plan, which will eventually affect the performance of the patient during the evaluation process, resulting in inaccurate evaluation results

At the same time, manual evaluation is highly subjective, and it is often necessary to ensure that the same therapist evaluates the patient during the rehabilitation process.

Images