System and method for ranking and extracting salient contours for target recognition
First Claim
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1. A method for obtaining salient contours from two-dimensional images acquired by a sensor, comprising the steps of:
- processing said two-dimensional images with an edge detector to produce edgels from each of said images;
linking said edgels into lists known as contours;
computing a saliency value for each of said contours;
ranking said contours in decreasing order of saliency; and
selecting predetermined ones from said ranked contours.
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Abstract
A system and method for obtaining salient contours from two-dimensional images acquired by a sensor is disclosed which process the two-dimensional images with an edge detector to produce edgels from each of the images, link the edgels into lists known as contours, compute a saliency value for each of the contours, rank the contours in decreasing order of saliency, and select certain ones of the ranked contours based on the requirements of a particular vision application.
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20 Claims
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1. A method for obtaining salient contours from two-dimensional images acquired by a sensor, comprising the steps of:
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processing said two-dimensional images with an edge detector to produce edgels from each of said images; linking said edgels into lists known as contours; computing a saliency value for each of said contours; ranking said contours in decreasing order of saliency; and selecting predetermined ones from said ranked contours. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A system for object recognition, comprising:
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a sensor for generating an image of a scene; an edge detector connected to said sensor to detect edgels within said image; a salient contour extractor connected to receive and process said detected edgels into contours, said extractor including a processing unit for determining a saliency value for each of said contours and ranking said contours in decreasing order of saliency; and an object matching system connected to receive preselected ones of said process contours and match them to known contours of predetermined objects. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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Specification