Image Processor Comprising Gesture Recognition System with Static Hand Pose Recognition Based on First and Second Sets of Features
First Claim
1. A method comprising steps of:
- identifying a hand region of interest in at least one image;
obtaining a vocabulary of hand poses;
estimating a plurality of hand features based on the hand region of interest, the plurality of hand features comprising a first set of features estimated from the hand region of interest and a second set of features comprising at least one feature estimated using a transform on a contour of the hand region of interest; and
recognizing a static pose of the hand region of interest based on the first set of features and the second set of features, wherein respective numbers of features in the first set of features and the second set of features are based at least in part on a size of the vocabulary of hand poses;
wherein the steps are implemented in an image processor comprising a processor coupled to a memory.
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Abstract
An image processing system comprises an image processor having image processing circuitry and an associated memory. The image processor is configured to implement a gesture recognition system comprising a static pose recognition module. The static pose recognition module is configured to identify a hand region of interest in at least one image, to obtain a vocabulary of hand poses, to estimate a plurality of hand features based on the hand region of interest, the plurality of hand features comprising a first set of features estimated from the hand region of interest and a second set of features comprising at least one feature estimated using a transform on a contour of the hand region of interest, and to recognize a static pose of the hand region of interest based on the first set of features and the second set of features, wherein respective numbers of features in the first set of features and the second set of features are based at least in part on a size of the vocabulary of hand poses.
16 Citations
23 Claims
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1. A method comprising steps of:
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identifying a hand region of interest in at least one image; obtaining a vocabulary of hand poses; estimating a plurality of hand features based on the hand region of interest, the plurality of hand features comprising a first set of features estimated from the hand region of interest and a second set of features comprising at least one feature estimated using a transform on a contour of the hand region of interest; and recognizing a static pose of the hand region of interest based on the first set of features and the second set of features, wherein respective numbers of features in the first set of features and the second set of features are based at least in part on a size of the vocabulary of hand poses; wherein the steps are implemented in an image processor comprising a processor coupled to a memory. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. (canceled)
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16. An apparatus comprising:
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an image processor comprising image processing circuitry and an associated memory; wherein the image processor is configured to implement a gesture recognition system utilizing the image processing circuitry and the memory, the gesture recognition system comprising a static pose recognition module; and wherein the static pose recognition module is configured; to identify a hand region of interest in at least one image; to obtain a vocabulary of hand poses; to estimate a plurality of hand features based on the hand region of interest, the plurality of hand features comprising a first set of features estimated from the hand region of interest and a second set of features comprising at least one feature estimated using a transform on a contour of the hand region of interest; and to recognize a static pose of the hand region of interest based on the first set of features and the second set of features, wherein respective numbers of features in the first set of features and the second set of features are based at least in part on a size of the vocabulary of hand poses. - View Dependent Claims (17, 18, 21, 22, 23)
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19. (canceled)
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20. (canceled)
Specification