Apparatus and method for detecting multiple arms and hands by using three-dimensional image
First Claim
1. An apparatus for detecting a plurality of arms and hands by using a three-dimensional (3D) image, the apparatus comprising:
- an image input unit configured to acquire a 3D image of an object;
an arm detecting unit configured to detect one or more component-unit candidate regions of the object in the 3D image, and detect one or more arm regions by using arm detection feature information, extracted from each of the candidate regions, and a pattern recognition algorithm; and
a hand detecting unit configured to calculate a position of a hand and a position of a wrist in each of the arm regions detected by the arm detecting unit, and detect a hand region by using the position of the hand and the position of the wrist.
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Abstract
Provided are an apparatus and method for detecting a plurality of arms and hands by using a three-dimensional (3D) image. The apparatus includes an image input unit configured to acquire a 3D image of an object, an arm detecting unit configured to detect one or more component-unit candidate regions of the object in the 3D image, and detect one or more arm regions by using arm detection feature information, extracted from each of the candidate regions, and a pattern recognition algorithm, and a hand detecting unit configured to calculate a position of a hand and a position of a wrist in each of the arm regions detected by the arm detecting unit, and detect a hand region by using the position of the hand and the position of the wrist.
19 Citations
16 Claims
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1. An apparatus for detecting a plurality of arms and hands by using a three-dimensional (3D) image, the apparatus comprising:
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an image input unit configured to acquire a 3D image of an object; an arm detecting unit configured to detect one or more component-unit candidate regions of the object in the 3D image, and detect one or more arm regions by using arm detection feature information, extracted from each of the candidate regions, and a pattern recognition algorithm; and a hand detecting unit configured to calculate a position of a hand and a position of a wrist in each of the arm regions detected by the arm detecting unit, and detect a hand region by using the position of the hand and the position of the wrist. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An apparatus for detecting a plurality of arms and hands by using a three-dimensional (3D) image, the apparatus comprising:
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an image input unit configured to acquire a real-time 3D image of an object; an arm detecting unit configured to detect one or more component-unit candidate regions of the object in a current 3D image frame, and detect one or more arm regions by using arm detection feature information, extracted from each of the candidate regions, and a pattern recognition algorithm; an arm tracking unit configured to track an arm by using an association between a first arm track feature of each of one or more arm regions detected from the current 3D image frame and a second arm track feature of each of one or more arm regions detected from a previous 3D image frame; a hand detecting unit configured to calculate a position of a hand and a position of a wrist in each arm region tracked by the arm tracking unit, and detect a hand region by using the position of the hand and the position of the wrist; and a hand tracking unit configured to track a hand by using an association between a first hand track feature of each of one or more hand regions detected from the current 3D image frame and a second hand track feature of each of one or more hand regions detected from the previous 3D image frame. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. A method of detecting a plurality of arms and hands by using a three-dimensional (3D) image, the method comprising:
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acquiring a real-time 3D image of an object; detecting one or more component-unit candidate regions of the object in a current 3D image frame, and detecting one or more arm regions by using arm detection feature information, extracted from each of the candidate regions, and a pattern recognition algorithm; tracking an arm by using an association between a first arm track feature of each of one or more arm regions detected from the current 3D image frame and a second arm track feature of each of one or more arm regions detected from a previous 3D image frame; calculating a position of a hand and a position of a wrist in each tracked arm region, and detecting a hand region by using the position of the hand and the position of the wrist; tracking a hand by using an association between a first hand track feature of each of one or more hand regions detected from the current 3D image frame and a second hand track feature of each of one or more hand regions detected from the previous 3D image frame; and updating a database with the first arm hand track feature and the first hand track feature.
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Specification