WEARABLE SENSOR FOR TRACKING ARTICULATED BODY-PARTS
First Claim
1. A wearable sensing device for gesture-based control of a computing device, the wearable sensing device comprising:
- a camera to capture images of an articulated part of a body of a wearer of the sensing device;
a tracking module arranged to use the captured images to track a 3D articulated model of the articulated body part in real time without the need for markers to be worn on the articulated body part;
a communication interface arranged to send the tracked 3D articulated model to the computing device in order to control the computing device according to 3D articulation of the articulated body part.
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Accused Products
Abstract
A wearable sensor for tracking articulated body parts is described such as a wrist-worn device which enables 3D tracking of fingers and optionally also the arm and hand without the need to wear a glove or markers on the hand. In an embodiment a camera captures images of an articulated part of a body of a wearer of the device and an articulated model of the body part is tracked in real time to enable gesture-based control of a separate computing device such as a smart phone, laptop computer or other computing device. In examples the device has a structured illumination source and a diffuse illumination source for illuminating the articulated body part. In some examples an inertial measurement unit is also included in the sensor to enable tracking of the arm and hand
217 Citations
20 Claims
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1. A wearable sensing device for gesture-based control of a computing device, the wearable sensing device comprising:
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a camera to capture images of an articulated part of a body of a wearer of the sensing device; a tracking module arranged to use the captured images to track a 3D articulated model of the articulated body part in real time without the need for markers to be worn on the articulated body part; a communication interface arranged to send the tracked 3D articulated model to the computing device in order to control the computing device according to 3D articulation of the articulated body part. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 17, 19, 20)
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11. A method of tracking a 3D articulated model of an articulated body part comprising:
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receiving images from a sensing device worn on a body comprising the articulated body part, the images comprising images of the articulated body part illuminated with structured illumination and images of the articulated body part illuminated with diffuse illumination; tracking the 3D articulated model by calculating, at a processor, at least two angles in a single chain of angles of the articulated model independently of one another from the received images. - View Dependent Claims (13)
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18. A tracking system for tracking a 3D articulated model of an articulated body part comprising:
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an input to receive images from a sensing device worn on a body comprising the articulated body part, the images comprising images of the articulated body part illuminated with structured illumination and images of the articulated body part illuminated with diffuse illumination; and a tracking module arranged to track the 3D articulated model by calculating at least two angles of the articulated model independently of one another from the received images.
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Specification