Importance

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Abstract

The invention provides a method for tracking characteristics of an object, the method including acquiring image data of a first image of the object to be tracked, as viewed by an imaging unit; storing data representing a selected portion of the first image, thus forming a first template having first defined dimensions; storing data representing at least one different portion of the first image, thus forming a second template having second template dimensions; acquiring image data of a second image of the object to be tracked, as viewed by the imaging unit; defining a search area comprising portions of the second image; defining a first gate in the search area, the gate possessing dimensions identical to those of the first template, thus forming a first template/gate pair; defining at least one second gate in the search area, the at least one second gate possessing dimensions identical to those of the second template, thus forming at least one second template/gate pair; the template/gate pairs being stored in the form of pixel values; calculating correlations between the data of the template/gate pairs at different locations in the search area; determining the locations of each template/gate pair where the correlations are the highest, and noting the determined locations. The invention further provides a system for tracking characteristics of an object.

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First Claim