Methods, apparatus and articles of manufacture to detect shapes
First Claim
1. An apparatus to manage a database for object recognition, the apparatus comprising:
- a detector to determine a first likelihood of detection for a reference shape at a first distance from an image capturing device;
a grouper to store the reference shape in a first group of a plurality of groups of reference shapes in the database based on a comparison of the first likelihood of detection with a first threshold, the first group associated with the first distance;
a calculator to aggregate a plurality of depth values associated with an object outline in an image to determine a combined depth value associated with the detected object outline; and
a comparator to limit comparison of the object outline in the image to reference shapes of the first group responsive to the combined depth value corresponding to the first distance.
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Accused Products
Abstract
Methods, apparatus, and articles of manufacture to detect shapes are disclosed. Example methods disclosed herein include determining a first likelihood of detection for a reference shape at a first distance from an image capturing device, and storing the reference shape in a first group of a plurality of groups in the database based on a comparison of the first likelihood of detection with a first threshold, the first group associated with the first distance. Disclosed examples also include selecting reference shapes of the first group to compare to an object outline detected in an image in response to a query, the query including a depth value associated with the detected object outline, the selecting of the reference shapes of the first group based on the depth value.
22 Citations
20 Claims
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1. An apparatus to manage a database for object recognition, the apparatus comprising:
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a detector to determine a first likelihood of detection for a reference shape at a first distance from an image capturing device; a grouper to store the reference shape in a first group of a plurality of groups of reference shapes in the database based on a comparison of the first likelihood of detection with a first threshold, the first group associated with the first distance; a calculator to aggregate a plurality of depth values associated with an object outline in an image to determine a combined depth value associated with the detected object outline; and a comparator to limit comparison of the object outline in the image to reference shapes of the first group responsive to the combined depth value corresponding to the first distance. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A tangible machine readable storage medium comprising instructions that, when executed, cause a processor to at least:
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determine a first likelihood of detection for a reference shape at a first distance from an image capturing device; store the reference shape in a first group of a plurality of groups of reference shapes in a database based on a comparison of the first likelihood of detection with a first threshold, the first group associated with the first distance; aggregate a plurality of depth values associated with an object outline in an image to determine a combined depth value associated with the detected object outline; and limit comparison of the object outline in the image to reference shapes of the first group responsive to the combined depth value corresponding to the first distance. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A method comprising:
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determining, by executing an instruction with a processor, a first likelihood of detection for a reference shape at a first distance from an image capturing device; storing the reference shape in a first group of a plurality of groups of reference shapes in a database based on a comparison of the first likelihood of detection with a first threshold, the first group associated with the first distance; aggregating, by executing an instruction with the processor, a plurality of depth values associated with an object outline in an image to determine a combined depth value associated with the detected object outline; and limiting comparison of the object outline in the image to reference shapes of the first group responsive to the combined depth value corresponding to the first distance. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification