THETAmetrix were approached to develop a MATLAB driven data processing solution for some research into spinal shape. Specifically the algorithm utilised an iterative process to correct for the moving location of spinous processes during spinal movement.
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Subject instrumented with fibre-optic shape measuring sensors. The graph below shows the measured shape of the spine.
The improvement in the curvature results obtained by applying the correction algorithm is shown below.
More information can be found in the following papers: