scholarly journals Optimization of Interactive Animation Capture System for Human Upper Limb Movement Based on XSENS Sensor

2021 ◽  
Vol 2021 ◽  
pp. 1-10
Author(s):  
Chaochun Che
Keyword(s):  
Upper Limb ◽  
Human Body ◽  
Angular Acceleration ◽  
Limb Movement ◽  
Human Anatomy ◽  
Experimental Simulation ◽  
General Function ◽  
Upper Limbs ◽  
Movement Model ◽  
Interactive Animation

This paper uses the XSENS sensor inertial motion capture device to collect the experimental data of the human body’s typical motion and posture-upper limb movement, based on the angular acceleration kinematics parameters of the human body’s upper limbs and upper limbs. We study the characteristics of human kinematics, statics, and dynamics and construct the upper limb movement model of the human body. Secondly, based on the principle of human anatomy, the human body is divided into 23 segments, with 18 upper limbs and 36 degrees of freedom; some anatomical terms are defined, and a unified coordinate system for the upper limb model of the human body is planned and established. In the process of experimental simulation, on the basis of analyzing and summarizing the laws and characteristics of the upper limb angles of the hip upper limbs, knee upper limbs, and ankle upper limbs during walking, a general function of the upper limb angles of the three upper limbs changing with time during walking was established. On the basis of analyzing 40 sets of upper limb movement data, with the three parameters of height, weight, and upper limb movement cycle as independent variables, the general function coefficient solving equation is given through function fitting. Finally, the production of interactive animation of upper limb movement is taken as an example. Based on the acceleration sensor and three-axis gyroscope, the limbs during the movement of the upper limb motion data are collected, preprocessed, and transmitted, and then, coordinate correction and data filtering are used to output quaternary parameters to give Maya an animated character model. The animation interactive demonstration is carried out in the way of web 3D, and the XSENS sensor is explored in the animation capture.

The Human Engineering Analysis of the Racing Wheelchair

2012 ◽  
Vol 538-541 ◽  
pp. 2802-2806 ◽  
Author(s):  
Tian Min Guan ◽  
Lei Lei ◽  
Jiang Bo Li
Keyword(s):  
Upper Limb ◽  
Human Body ◽  
Engineering Properties ◽  
Upper Limbs ◽  
Human Engineering ◽  
Engineering Analysis ◽  
General Evaluation ◽  
Kinematic Theory ◽  
Body Kinematic ◽  
D Model

In order to improve the human engineering properties for the racing wheelchair, using the CATIA Human Engineering Analysis module, this paper established the human body 3-D model, analyzed the eligibility of the hold and the extend for the racing wheelchair, analyzed and evaluated the comfort of three typical sports postures of human body. The general evaluation results accorded with the human body kinematic theory, and the upper limb comfort gradually became better, in a movement cycle of the upper limbs driving the wheelchair.

Image registration analysis of the motion characteristics of sternoclavicular joints in sagittal motion of the upper limbs

2020 ◽  
pp. 1-9
Author(s):  
Peng Su ◽  
Junlin Zhou ◽  
Cai Yun ◽  
Feng Liu ◽  
Yi Zhang
Keyword(s):  
Image Registration ◽  
3D Reconstruction ◽  
Range Of Motion ◽  
Upper Limb ◽  
Human Anatomy ◽  
Horizontal Position ◽  
Upper Limbs ◽  
Axial Angle ◽  
Rest Position ◽  
Dominant Side

OBJECTIVE: This study aims to accurately measure the range of motion of the sternoclavicular (SC) joint using 3D reconstruction and image registration. The motion of the SC joint is analyzed by means of axial angle representation to identify the kinematical characteristics of this joint. METHODS: A total of 13 healthy volunteers were enrolled in the study. The limit postures of four SC joint movements were scanned by computerized tomography. The images were integrated with reconstruction and registration techniques. The range of motion of the SC joint was measured using 3D modelling. The axial angle was used to indicate the range of motion of the SC joint. The difference between the dominant side and non-dominant side was compared and the differences in axial angle of the SC joint in different postures were compared. RESULTS: The active axial angle of the SC joint on the dominant side was approximately 1∘ higher than that of the non-dominant side when the upper limb moved from a rest position to a posteroinferior position. In the sagittal motion of the upper limbs, the axial angle of the SC joint was greatest when moving from a horizontal position to a posterosuperior position, with an average of 23.55∘. Of the flexion and extension movements of the upper limbs from a rest position to a horizontal position, 13.66% (the smallest proportion) were completed by the SC joint. CONCLUSION: The combination of 3D reconstruction and image registration is a direct and accurate method of measuring the motion of the SC joint. Axial angle representation is an intuitive method of expressing rotation in a 3D space that allows for more convenient comparison; it is also more in line with the characteristics of human anatomy and kinesiology and therefore more accurately reflects the characteristics of joint motion. It is therefore useful for guiding clinical practice. In a physical examination, the extension of the upper limb from the horizontal position to the posterosuperior position and from the rest position to the posteroinferior position can best reflect the rotation function of the SC joint in the combined motion of shoulder joints.

Adaptive Information Fusion for Human Upper Limb Movement Estimation

2012 ◽  
Vol 42 (5) ◽  
pp. 1100-1108 ◽  
Author(s):  
Zhi-Qiang Zhang ◽  
Lian-Ying Ji ◽  
Zhi-Pei Huang ◽  
Jian-Kang Wu
Keyword(s):  
Information Fusion ◽  
Upper Limb ◽  
Limb Movement ◽  
Human Upper Limb

Characterization of upper limb movement-related EEG dynamics through fractional integrated autoregressive modeling

2021 ◽  
Author(s):  
Laura Cavaliere ◽  
Vincenzo Catrambone ◽  
Matteo Bianchi ◽  
Ana Paula Rocha ◽  
Gaetano Valenza
Keyword(s):  
Upper Limb ◽  
Limb Movement ◽  
Autoregressive Modeling

Clinical Application of Scalp Cluster Needling Combined with Bobath Technique in Upper Limb Spastic Paralysis After Stroke of Vertebral Artery Type

2021 ◽  
Author(s):  
Aimin Gong ◽  
Mengjie Zeng ◽  
Zhiquan Wu
Keyword(s):  
Treatment Group ◽  
Acupuncture Therapy ◽  
Vertebral Artery ◽  
Upper Limb ◽  
Training Group ◽  
Control Group ◽  
Upper Limbs ◽  
Spastic Paralysis ◽  
Rehabilitation Training ◽  
The Difference

To observe the difference in clinical effects of scalp-point cluster acupuncture combined with rehabilitation training in treating spastic paralysis of upper limbs after stroke. Using a randomized controlled design, 96 patients with upper limb spastic paralysis after stroke were randomly divided into two groups: treatment group (scalp acupuncture plus rehabilitation training group 48 cases), control group (rehabilitation training group 48 cases). After 2 courses of treatment, it was judged by observing clinical efficacy evaluation, Ashworth classification, and Fugl-Meyer (FMA) score. The total effective rate was 91.7% in the treatment group and 68.7% in the control group; the difference between the two groups was statistically significant (P <0.05). Before treatment, the difference in Ashworth classification between the two groups was not statistically significant (P> 0.05); after treatment, the difference between the two groups was statistically significant (P <0.01). After treatment, the difference between the two groups was statistically significant (P＜0.05). The Fugl-Meyer (FMA) scores of the two groups of patients before treatment were comparable (P>0.05), and there were significant differences between the two groups after treatment (P <0.05). The difference of Fugl-Meyer (FMA) scores between the two groups was statistically significant (P < 0.01). Scalp cluster acupuncture therapy is more effective than traditional acupuncture therapy alone in treating vertebral artery type cervical spondylosis. Scalp cluster acupuncture combined with Bobath technique is effective in treating spastic paralysis of upper limbs after stroke, and it is worthy of clinical application.

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