L-FRAME PLACEMENT
9
L-FRAME PLACEMENT
Before starting data acquisition, you will need to calibrate the cameras so that the
computer will know exactly where the cameras are in respect to each other and to
the environment around them. This tutorial does not cover how to calibrate the
camera system, but it is important to note that the location of the force plate often
determines the origin point for calibration.
The L-frame is a tool that defines the X, Y, and Z axes of
the volume during calibration, and its corner sets the
origin point. Many labs choose to place the L-frame along
a force plate. Tabs on the L-frame are designed to slide
into the gaps beside the force plate to keep the L-frame
in place.
The L-frame does not have to
be placed on the force plate.
The important thing is that it be placed in the same spot
every time for consistent calibration results, and the force
plate is an easy reference point.
