Patent Document ID: 8290741
Application ID: 12686467

Base Claim:
1. A method comprising: receiving a first sensor data set and a second sensor data set generated in response to sensing one or more structures, the sensor data sets describing a plurality of structural features of the structures; generating a plurality of first delta vector sets for the first sensor data set and a plurality of second delta vector sets for the second sensor data set, each delta vector set comprising one or more delta vectors for a structural feature, a delta vector indicating one or more relative geometrical relationships between the structural feature and one or more other structural features of the each sensor data set; and determining a plurality of association scores for a plurality of delta pairs, a delta pair comprising a first delta vector set and a second delta vector set; and identifying a plurality of same feature delta pairs according to the association scores, a same feature delta vector set comprising a delta pair corresponding to the same structural feature.

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Claim 4:
4. The method of claim 1 , the determining the plurality of association scores further comprising performing the following for one or more iterations: identifying a plurality of candidate pairs for an iteration according to the association scores, a candidate pair indicating a mapping of a first feature to a second feature for the iteration; and rotating the first delta vector sets with respect to the second delta vector sets.