Patent ID: 6973207

Claim:
A method for training a system to inspect a spatially distorted pattern, the method comprising: receiving a digitized image of an object, the digitized image including a region of interest; dividing the region of interest in its entirety into a plurality of non-overlapping sub-regions, a size of each of the non-overlapping sub-regions being small enough such that an image-feature-position-based inspecting tool can reliably inspect each of the sub-regions; training only a fine search tool and an image-feature-position-based inspection tool for a respective single model for each of the plurality of non-overlapping sub-regions; building a single search tree for determining an order for inspecting each non-overlapping sub-region of the plurality of non-overlapping sub-regions at a run-time; and training a coarse alignment tool for the region of interest in its entirety so as to enable providing at run time an approximate location for a root sub-region of the single search tree.