Compact interactive tabletop with projection-vision
First Claim
Patent Images
1. A method comprising:
- observing, by a projection-vision system implemented by one or more processors configured with executable instructions, a finger shadow by a projection-vision system, as the finger shadow appears on an interactive surface;
computing at least one shadow image by the projection-vision system based on the observing the finger shadow; and
determining, by the projection-vision system, whether the at least one finger is touching or hovering over the interactive surface based on an analysis of the at least one shadow image.
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Abstract
The subject application relates to a system(s) and/or methodology that facilitate vision-based projection of any image (still or moving) onto any surface. In particular, a front-projected computer vision-based interactive surface system is provided which uses a new commercially available projection technology to obtain a compact, self-contained form factor. The subject configuration addresses installation, calibration, and portability issues that are primary concerns in most vision-based table systems. The subject application also relates to determining whether an object is touching or hovering over an interactive surface based on an analysis of a shadow image.
21 Citations
20 Claims
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1. A method comprising:
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observing, by a projection-vision system implemented by one or more processors configured with executable instructions, a finger shadow by a projection-vision system, as the finger shadow appears on an interactive surface; computing at least one shadow image by the projection-vision system based on the observing the finger shadow; and determining, by the projection-vision system, whether the at least one finger is touching or hovering over the interactive surface based on an analysis of the at least one shadow image. - View Dependent Claims (2, 3, 4)
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5. A method comprising:
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sensing, by a projection-vision system implemented by one or more processors configured with executable instructions, an object over an interactive surface; projecting, by the projection-vision system, a shadow of the object on the interactive surface based on the sensing the object; and detecting, by the projection-vision system, whether the object is touching or hovering over the interactive surface by examining a change in an appearance of a shadow image. - View Dependent Claims (6, 7, 8, 9, 10, 11)
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12. A projection-vision system comprising:
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a projector; a camera mounted to the projector to create the interactive surface; one or more processors in communication with the camera; an image component implemented by the one or more processors to determine whether an object is touching or hovering over an interactive surface by; tracking whether the object is touching or hovering over the interactive surface; computing a shadow of the object appearing on the interactive surface; and determining whether the object is touching or hovering over the interactive surface based on an analysis of a shadow image. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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Specification