Gesture recognition interface system with a light-diffusive screen
First Claim
1. A gesture recognition interface system comprising:
- at least one light source positioned to illuminate a first side of a light-diffusive screen configured to display visual content;
at least one camera positioned on a second side of the light-diffusive screen, the second side being opposite the first side, and configured to receive a plurality of images performed in a foreground of the second side based on a brightness contrast difference between diffused illumination from the at least one light source via the light-diffusive screen and an input object;
a projector configured to provide the visual content;
a beamsplitter configured to combine light emitted from the at least one light source and the visual content substantially on-axis on the first side of the light-diffusive screen; and
a controller configured to determine a given input gesture that is interactive with the visual content based on changes in relative locations of the input object in the plurality of images, and being further configured to initiate a device input associated with the given input gesture.
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Accused Products
Abstract
One embodiment of the invention includes a gesture recognition interface system. The interface system may comprise at least one light source positioned to illuminate a first side of a light-diffusive screen. The interface system may also comprise at least one camera positioned on a second side of the light-diffusive screen, the second side being opposite the first side, and configured to receive a plurality of images based on a brightness contrast difference between the light-diffusive screen and an input object. The interface system may further comprise a controller configured to determine a given input gesture based on changes in relative locations of the input object in the plurality of images. The controller may further be configured to initiate a device input associated with the given input gesture.
140 Citations
17 Claims
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1. A gesture recognition interface system comprising:
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at least one light source positioned to illuminate a first side of a light-diffusive screen configured to display visual content; at least one camera positioned on a second side of the light-diffusive screen, the second side being opposite the first side, and configured to receive a plurality of images performed in a foreground of the second side based on a brightness contrast difference between diffused illumination from the at least one light source via the light-diffusive screen and an input object; a projector configured to provide the visual content; a beamsplitter configured to combine light emitted from the at least one light source and the visual content substantially on-axis on the first side of the light-diffusive screen; and a controller configured to determine a given input gesture that is interactive with the visual content based on changes in relative locations of the input object in the plurality of images, and being further configured to initiate a device input associated with the given input gesture. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of providing device inputs, the method comprising:
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illuminating a first side of a light-diffusive screen with at least one light source; providing simulated inputs in a foreground of a second side of the light-diffusive screen via gestures associated with an input object, the second side being opposite the first side of the light-diffusive screen; generating a first plurality of images and a second plurality of images associated with the input object substantially concurrently via a first camera and a second camera, respectively, based on a brightness contrast between the input object and the second side of the light-diffusive screen; determining a plurality of three-dimensional physical locations of the input object based on a relative separation of the input object in the first plurality of images relative to the second plurality of images; determining if changes in the plurality of three-dimensional physical locations of the input object correspond to any of a plurality of predefined gestures; and providing at least one device input based on a given one of the plurality of predefined gestures upon determining that the changes in the plurality of three-dimensional physical locations of the input object correspond to the given one of the plurality of predefined gestures. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. A gesture recognition interface system comprising:
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means for projecting visual content; means for displaying the visual content and for substantially diffusing infrared (IR) illumination provided from the means for projecting; means for generating a first plurality of silhouette images and a second plurality of silhouette images of the input object relative to the diffused illumination, the first and second plurality of images forming a plurality of matched pairs of silhouette images of the input object; means for generating two-dimensional location information associated with at least one feature of the input object for each of the first plurality of images and the second plurality of images; means for interpolating three-dimensional location information associated with the input object based on the two-dimensional location information associated with the at least one feature of the input object for each of the plurality of matched pairs of images of the input object; means for translating changes in the three-dimensional location information associated with at least one feature of the input object to a given input gesture; and means for providing device inputs based on matching the given input gesture with one of a plurality of predefined gestures. - View Dependent Claims (17)
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Specification