Biomedical Engineering Reference
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Fig. 8.8 Absolute
translational error of head
tracking based on 3D laser
scans with a head phantom
mounted to a robot
Therefore, a registration to a reference image, e.g. from CAD data, is possible
within the same accuracy range as for the head registration. These scans further
suggest that even a high resolution laser scan can be employed as reference image.
(a)
(b)
Fig. 8.9 Scatter plots of obtained by laser scans of TMS coils. a A scan of a small circular coil
(MCF-75) with roughly 5,500 surface points. b A scan of a human figure-of-eight coil (MCF-
B65) that consists of almost 15,000 surface points. All values in mm
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