Method for distinguishing between objects using mace filters
First Claim
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1. 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.
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Abstract
A pair of matched filters describing a pre-selected category of objects isade, 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.
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Citations
3 Claims
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1. A method for performing detection and distinction of several different categories of objects in a given scene, said method comprising the steps of:
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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. - View Dependent Claims (2, 3)
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Current AssigneeUnited States Secretary of the Army
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Original AssigneeThe United States Of America As Represented By The Secretary Of The Army
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InventorsTaylor, Travis S.
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Primary Examiner(s)ROGERS, SCOTT A
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Application NumberUS08/744,703Time in Patent Office806 DaysField of Search382/195, 382/209, 382/210, 382/211, 382/278, 359/561US Class Current382/210CPC Class CodesG02B 27/46 Systems using spatial filtersG06V 10/89 using frequency domain filt...
