System and method for preforming simultaneous bilateral measurements on a subject in motion
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United States of America Patent
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Aug 10, 1993
Grant Date -
N/A
app pub date -
Jul 30, 1991
filing date -
Jul 30, 1991
priority date (Note) -
In Force
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Abstract
A system is provided for performing simultaneous bilateral measurements on a subject in motion at a test location. The system employs a plurality of observed targets attached to the moving subject, the targets being viewed simultaneously by each of two cameras disposed on opposite sides of the subject. Each of the cameras has associated therewith a light source emitting a light of a selected wavelength, the wavelengths for the two cameras being deliberately selected to be different enough to enable each camera to image the light source of the other without corruption of the observed data. The simultaneously operating two camera units may be computer controlled in preprogrammed manner or may be controlled by the operation of a manual control panel. In either case, the overall intensity of the two light sources providing illumination at the two selected different wavelengths facilitates the provision of illumination which avoids confusion by reflectance from the subject at other than the selected targets.
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