Synergetic Control during Generation of a Maximal Isometric Effort by the Human Arm

2020 ◽  
Vol 52 (1) ◽  
pp. 49-59
Author(s):  
A. V. Gorkovenko ◽  
T. Tomiak ◽  
W. Pilewska ◽  
M. Zasada ◽  
A. I. Kostyukov
Keyword(s):  
Isometric Effort ◽  
Human Arm ◽  
Synergetic Control

Estimation and Kinetic Modeling of Human Arm using Wearable Robot Arm

2016 ◽  
Vol 136 (4) ◽  
pp. 254-262 ◽  
Author(s):  
Takahiro Yamazaki ◽  
Sho Sakaino ◽  
Toshiaki Tsuji
Keyword(s):  
Kinetic Modeling ◽  
Robot Arm ◽  
Wearable Robot ◽  
Human Arm

scholarly journals High-Speed Dynamic Projection Mapping onto Human Arm with Realistic Skin Deformation

2021 ◽  
Vol 11 (9) ◽  
pp. 3753
Author(s):  
Hao-Lun Peng ◽  
Yoshihiro Watanabe
Keyword(s):  
User Interfaces ◽  
High Speed ◽  
Target Surface ◽  
Human Vision ◽  
Surface Model ◽  
Projection Mapping ◽  
Skin Deformation ◽  
Human Arm ◽  
Conventional Methods ◽  
Joint Tracking

Dynamic projection mapping for a moving object according to its position and shape is fundamental for augmented reality to resemble changes on a target surface. For instance, augmenting the human arm surface via dynamic projection mapping can enhance applications in fashion, user interfaces, prototyping, education, medical assistance, and other fields. For such applications, however, conventional methods neglect skin deformation and have a high latency between motion and projection, causing noticeable misalignment between the target arm surface and projected images. These problems degrade the user experience and limit the development of more applications. We propose a system for high-speed dynamic projection mapping onto a rapidly moving human arm with realistic skin deformation. With the developed system, the user does not perceive any misalignment between the arm surface and projected images. First, we combine a state-of-the-art parametric deformable surface model with efficient regression-based accuracy compensation to represent skin deformation. Through compensation, we modify the texture coordinates to achieve fast and accurate image generation for projection mapping based on joint tracking. Second, we develop a high-speed system that provides a latency between motion and projection below 10 ms, which is generally imperceptible by human vision. Compared with conventional methods, the proposed system provides more realistic experiences and increases the applicability of dynamic projection mapping.

scholarly journals BIOMIMETIC DESIGN OF LOW STIFFNESS ACTUATOR SYSTEMS FOR PROSTHETIC LIMBS

2011 ◽  
Author(s):  
D. L. Russell ◽  
M. McTavish
Keyword(s):  
Mechanical Properties ◽  
Degrees Of Freedom ◽  
Analytical Techniques ◽  
Energetic Costs ◽  
Multiple Degrees Of Freedom ◽  
Prosthetic Limbs ◽  
Limb Stiffness ◽  
Human Arm ◽  
Biomimetic Approach ◽  
Low Stiffness

The various relationships that are possible between the mechanical properties of single actuators and the overall mechanism (in this case a human arm with or without a prosthetic elbow) are discussed. Graphical and analytical techniques for describing the range of overall limb stiffnesses that are achievable and for characterizing the overall limb stiffness have been developed. Using a biomimetic approach and, considering energetic costs, stability and complexity, the implications of choosing passive or active implementations of stiffness are discussed. These techniques and approaches are particularly applicable with redundant (agonist - antagonist) actuators and multiple degrees of freedom. Finally, a novel biomimetic approach for control is proposed.

scholarly journals The Movement- and Load-Dependent Differences in the EMG Patterns of the Human Arm Muscles during Two-Joint Movements (A Preliminary Study)

2016 ◽  
Vol 7 ◽  
Author(s):  
Tomasz Tomiak ◽  
Tetiana I. Abramovych ◽  
Andriy V. Gorkovenko ◽  
Inna V. Vereshchaka ◽  
Viktor S. Mishchenko ◽  
...  
Keyword(s):  
Human Arm ◽  
Arm Muscles ◽  
Preliminary Study ◽  
Emg Patterns
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