Method and apparatus for tracking an object
First Claim
Patent Images
1. A method of tracking an object comprising:
- receiving an image of a scene, the scene comprising the object;
processing the image with a plurality of trackers to produce an estimate of a position of the object, wherein the processing comprises;
processing the image with a first tracker to produce a first estimate of the position of the object in the image and an associated first confidence value, andprocessing the image with a second tracker, concurrently with the first tracker, to produce a second estimate of the position of the object in the image and an associated second confidence value, the second tracker processing the image using one or more of a plurality of processing techniques, wherein the second tracker selects which of the processing techniques are used based upon a distance between the object and a device comprising the first and second trackers;
selecting one of the produced estimates of the position of the object in the image using the first and second confidence values; and
tracking the object using the selected estimate.
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Abstract
A method and apparatus for tracking an object in an image. An image of a scene comprising an object is received. The image is processed with a first tracker to produce a first estimate of a position of the object in the image and a first confidence value. The image is processed with a second tracker to produce a second estimate of the position of the object in the image and a second confidence value. The second tracker processes the image concurrently with the first tracker. An estimate of the position of the object in the image is selected using the first and second confidence values. The object is then tracked using the selected estimate.
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Citations
29 Claims
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1. A method of tracking an object comprising:
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receiving an image of a scene, the scene comprising the object; processing the image with a plurality of trackers to produce an estimate of a position of the object, wherein the processing comprises; processing the image with a first tracker to produce a first estimate of the position of the object in the image and an associated first confidence value, and processing the image with a second tracker, concurrently with the first tracker, to produce a second estimate of the position of the object in the image and an associated second confidence value, the second tracker processing the image using one or more of a plurality of processing techniques, wherein the second tracker selects which of the processing techniques are used based upon a distance between the object and a device comprising the first and second trackers; selecting one of the produced estimates of the position of the object in the image using the first and second confidence values; and tracking the object using the selected estimate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 27)
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12. A system comprising:
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a plurality of trackers to produce an estimate of a position of an object in an image, the plurality of trackers comprising; a primary tracker which processes the image and outputs a first estimate of the position of the object in the image and an associated first confidence value; and a secondary tracker which processes the image, concurrently with the primary tracker, and outputs a second estimate of the position of the object in the image and an associated second confidence value, the secondary tracker processing the image using one or more of a plurality of processing techniques, wherein the secondary tracker selects which of the processing techniques are used based upon a distance between the object and the system; and an output selector processing circuitry which selects one of the outputted estimates of the position of the object in the image using the first and second confidence values. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 28)
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20. A system comprising:
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a plurality of trackers, comprising; a primary tracker that processes an image and outputs a first estimate of a position of an object in the image and an associated first confidence value, and a secondary tracker that processes the image, concurrently with the first tracker, and outputs a second estimate of the position of the object in the image and an associated second confidence value, the secondary tracker processing the image using one or more of a plurality of processing techniques, wherein the secondary tracker selects which of the processing techniques are used based on a distance between the system and the object; an output selector processing circuitry which selects one of the first and the second estimates of the position of the object in the image using the first and second confidence values when the first and second confidence values are above a predetermined threshold; and a third tracker which receives the image and outputs a third estimate of the position of the object in the image, wherein the output selector selects the third estimate when the first and second confidence values are below the predetermined threshold. - View Dependent Claims (21, 22, 23, 24, 25, 26, 29)
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Specification