Thumb Motion Classification using Discrimination Functions

2006 ◽  
Author(s):  
Jan Havlik ◽  
Jan Uhlir ◽  
Zdenek Horcik
Keyword(s):  
Motion Classification ◽  
Thumb Motion

scholarly journals Variable Thumb Moment Arm Modeling and Thumb-Tip Force Production of a Human-Like Robotic Hand

2017 ◽  
Vol 139 (10) ◽  
Author(s):  
Taylor D. Niehues ◽  
Ashish D. Deshpande
Keyword(s):  
Physical Simulation ◽  
Three Dimensional ◽  
Force Production ◽  
Human Hand ◽  
Robotic Hand ◽  
Motion Data ◽  
Moment Arms ◽  
Musculoskeletal Structure ◽  
Thumb Motion ◽  
Force Vectors

The anatomically correct testbed (ACT) hand mechanically simulates the musculoskeletal structure of the fingers and thumb of the human hand. In this work, we analyze the muscle moment arms (MAs) and thumb-tip force vectors in the ACT thumb in order to compare the ACT thumb's mechanical structure to the human thumb. Motion data are used to determine joint angle-dependent MA models, and thumb-tip three-dimensional (3D) force vectors are experimentally analyzed when forces are applied to individual muscles. Results are presented for both a nominal ACT thumb model designed to match human MAs and an adjusted model that more closely replicates human-like thumb-tip forces. The results confirm that the ACT thumb is capable of faithfully representing human musculoskeletal structure and muscle functionality. Using the ACT hand as a physical simulation platform allows us to gain a better understanding of the underlying biomechanical and neuromuscular properties of the human hand to ultimately inform the design and control of robotic and prosthetic hands.

scholarly journals Ultrasound-Based Sensing Models for Finger Motion Classification

2018 ◽  
Vol 22 (5) ◽  
pp. 1395-1405 ◽  
Author(s):  
Youjia Huang ◽  
Xingchen Yang ◽  
Yuefeng Li ◽  
Dalin Zhou ◽  
Keshi He ◽  
...  
Keyword(s):  
Motion Classification ◽  
Finger Motion
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