Two different test methods are used, first for accuracy and
variance calculation, which require reference of each image
captured, and second for evaluating the dynamic
performance. For the first method, an image pair from the stereo cameras is acquired and the carriage is moved 10mm
for acquiring next pair. The cameras are not moved while the
images are captured, which will eliminate errors from camera
synchronization and motion blur. By capturing images at
constant distance, the speed will be constant and the position
for each image will be known. A drawback of this method is
that the variance in the manual positioning each 10 mm will
be included in the result. The accuracy of the positioning is
approximately 0.1 mm. The mean error will be small due to
the long distance.
Two different test methods are used, first for accuracy and
variance calculation, which require reference of each image
captured, and second for evaluating the dynamic
performance. For the first method, an image pair from the stereo cameras is acquired and the carriage is moved 10mm
for acquiring next pair. The cameras are not moved while the
images are captured, which will eliminate errors from camera
synchronization and motion blur. By capturing images at
constant distance, the speed will be constant and the position
for each image will be known. A drawback of this method is
that the variance in the manual positioning each 10 mm will
be included in the result. The accuracy of the positioning is
approximately 0.1 mm. The mean error will be small due to
the long distance.
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