Method for distinguishing between objects using mace filters
AssigneeThe United States of America as represented by the Secretary of the Army
InventorTravis S. Taylor
Life of this patent
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Abstract
A pair of matched filters describing a pre-selected category of objects is ade, each of the filters having a center located at a unique place in the filter. When incorporated into a MACE filter and used in an optical correlator, a line drawn through the correlation peaks caused by the centers of the matched filter pair and a pre-selected axis together produce an angle that is indigenous to that particular category of objects, thus identifying the category of objects.
Claims3
A method for performing detection and distinction of several different categories of objects in a given scene, said method comprising the steps of:
- a) creating a pair of matched filters for each respective category of objects;
- b) producing a synthetic substitution filter for each respective category from the matched filters for that category;
- c) combining the synthetic substitution filters into one MACE filter;
- d) displaying the MACE filter on the filter plane of an optical correlator;
- and
- e) observing any emergent delta functions and measuring the angle between the functions, the angle being indicative of a unique category of objects.
Dependencies are inferred from the claim text.