2D and 3D motion analysis
Motion analysis is used in several fields of applications: In sports science, clinical
gait analysis, physiotherapy and other medical sections.
Typical motion analysis measurements acquire
kinematic and dynamic data.
Most motion analysis applications need optical information to determine the movement
or to visualize the resulting diagnosis.
While clinical gait analysis handles slow movements most other activities require
a higher resolution in time. High-speed video
cameras with 100, 300 or even more than 1000 frames per second can be used
to gain high accuracy.
2D motion analysis is a subset of
3D motion analysis and requires only one camera, while 3D measurements require
at least two cameras from different perspectives.
Analog data acquisition
Kinematic and dynamic data is usually acquired with analog digital converter hardware where
sensors for forces, pressure, acceleration or angular movement can be connected.
Static vs. dynamic motion analysis
For simple motion analysis applications it is often sufficient to measure positions,
distances or angles at specific points in time (events). For these cases a static kinematic measurement will be a quick
and easy solution.
Other, more complex applications, require certain values or signals to be measured
continuously in order to plot graphs or other diagrams (dynamic kinematic measurement).
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[Static vs. dynamic motion analysis]
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