System and method for fast template matching by adaptive...

Image analysis – Applications – Manufacturing or product inspection

Reexamination Certificate

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C382S209000

Reexamination Certificate

active

07580560

ABSTRACT:
A fast template matching method by adaptive template decomposition is provided. The template decomposition technique subdivides a template into a number of horizontal and/or vertical subdivisions and one-dimensional characterizations are determined for the subdivisions. The template decomposition may be adapted during learn mode operations of a general-purpose precision machine vision inspection system, with the support of corresponding user interfaces. The matching results for one or more template decomposition configurations may be evaluated by a user, or by an automatic decomposition configuration evaluation routine, to determine a configuration that provides a desirable trade-off between speed and matching position accuracy. Automatic workpiece inspection instructions may implement the configuration to repeatedly provide optimum speed versus accuracy trade-offs during run mode operations of the inspection system.

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