| 摘要 |
A system comprising a measurement site (1); a measurement unit (2,3) fixed to each of the sides of said site and comprising at least one video camera (21,22,31,32) orientated towards any one target (41,62,51,72) fixed with any orientation to a wheel positioned on the same side; a third video camera (23) associated with the unit fixed to one of the sides of the site and orientated towards the unit fixed on the other side; a target (83) rigid with the unit fixed to the other side of the site and positioned within the field of vision of the third video camera; each video camera being arranged to acquire at least two images of the respective target from at least two different positions; processor means (30) for the images acquired by the three video cameras to define the spatial position of the targets with respect to a single reference system; display means. <IMAGE>
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