Target recognition using string-to-string matching
First Claim
1. A method for determining whether a perceived target is acceptably close to a model target, said method comprising the steps of:
- segmenting the perceived target using a relaxation based procedure;
extracting structural features from the perceived target by producing a compact one-dimensional description of the perceived target'"'"'s boundary; and
classifying said structural features by using string-to-string matching, wherein one of two symbolic strings is a representation of the compact one-dimensional description of the boundary of the perceived target, and the other of said two symbolic strings is a prestored representation of the model target, and the string-to-string matching entails measuring the distance between the two strings based upon deletion, insertion, and substitution of symbols from one string to the other;
so that;
performing the string-to-string matching measures how closely local structural features of the perceived target resemble local structural features of the model target.
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Abstract
A method for determining whether a perceived target is acceptably close to a model target. The perceived target is first segmented using a relaxation based procedure. Structural features from the perceived target are extracted by producing a compact one-dimensional description of the perceived target'"'"'s boundary. Said structural features are classified by using string-to-string matching, wherein one of two symbolic strings is a representation of the compact one-dimensional description of the boundary of the perceived target, and the other of said two symbolic strings is a pre-stored representation of the model target. The string-to-string matching entails measuring the distance between the two strings based upon deletion, insertion, and substitution of symbols from one string to the other. Performing the string-to-string matching measures how closely local structural features of the perceived target resemble local structural features of the model target.
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3 Claims
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1. A method for determining whether a perceived target is acceptably close to a model target, said method comprising the steps of:
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segmenting the perceived target using a relaxation based procedure; extracting structural features from the perceived target by producing a compact one-dimensional description of the perceived target'"'"'s boundary; and classifying said structural features by using string-to-string matching, wherein one of two symbolic strings is a representation of the compact one-dimensional description of the boundary of the perceived target, and the other of said two symbolic strings is a prestored representation of the model target, and the string-to-string matching entails measuring the distance between the two strings based upon deletion, insertion, and substitution of symbols from one string to the other;
so that;performing the string-to-string matching measures how closely local structural features of the perceived target resemble local structural features of the model target. - View Dependent Claims (2, 3)
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Specification