| 摘要 |
A method and apparatus optimizes the process of locating an image of a part by exploiting at least one set of regular co-linear features in the image of the part. A selected one of the at least one set of regular co-linear features is used to quickly correlate a set of image points and a set of model points which are likely to correspond to each other. A one to one correspondence of a subset of model points to a subset of image points yields a single possible location for the part in the image, which location can be quickly and reliably checked for correctness, and if incorrect, a next possible set to set correspondence can be tested until the correct location is found.
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