| BelowKnee
LowerLimb WholeBody |
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The 3-D Pedorthic Optical Digitizer
uses three camera heads to scan around the whole foot at once.
Cameras move along the length of the foot digitizing cross sections
at every millimeter. Support bars allow for subject stability
once in proper alignment and for control over the amount of
body weight placed on the scanned foot. The bottom camera uses
a different laser wavelength and filter to avoid seeing the
laser light from the other two cameras. |
Close up of subject's foot being scanned on
clear footplate with 1/2 inch heel height. Red laser light
from two top cameras is visible on the medial and dorsal
aspects of the foot. Small landmarks (white dots) used to
mark key anatomical locations are also visible. The silver
aluminum frame contains four force transducers to measure
both total weight applied and relative positioning of weight
distribution during scan. |
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Realtime feedback monitor for foot scanning. Once subject
is properly positioned (foot placement on plate and leg alignment),
red target square is positioned at their current weight distribution
location. Subject is then instructed to keep the current position
cursor inside the square during the scan so weight position
does not change. The current position cursor also changes color
with the amount of total weight applied. Goal weight is entered
and cursor will turn green when desired weight is reached. |
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3-D surface model from foot
scanner. Unnamed marks were transferred from the data points
onto the surface model. Blue lines represent standard circumferences
and measurements for last fitting. |
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