Compact Interactive Tabletop with Projection-Vision
First Claim
1. A system for sensing touch detection, the system comprising:
- a memory;
a processing unit coupled to the memory;
an object sensing component executed by the processing unit and configured to sense and to detect an object over an interactive surface, the interactive surface being illuminated with an infrared source;
a shadow analysis component executed by the processing unit and configured to track a shadow of the object appearing on the interactive surface based on the interactive surface reflecting infrared when the object is moving; and
the shadow analysis component executed by the processing unit and further configured to enable touch detection by examining the shadow of the object to determine if the object is hovering over or touching the interactive surface based on an analysis of the shadow of the object.
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Accused Products
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.
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Citations
20 Claims
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1. A system for sensing touch detection, the system comprising:
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a memory; a processing unit coupled to the memory; an object sensing component executed by the processing unit and configured to sense and to detect an object over an interactive surface, the interactive surface being illuminated with an infrared source; a shadow analysis component executed by the processing unit and configured to track a shadow of the object appearing on the interactive surface based on the interactive surface reflecting infrared when the object is moving; and the shadow analysis component executed by the processing unit and further configured to enable touch detection by examining the shadow of the object to determine if the object is hovering over or touching the interactive surface based on an analysis of the shadow of the object. - View Dependent Claims (2, 3, 4, 5)
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6. A method implemented at least partially by a processor, the method comprising:
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illuminating an interactive surface using an infrared source; detecting a finger over the interactive surface being illuminated with the infrared source; observing a shadow of the finger appearing on the interactive surface based on the finger being detected; reflecting infrared by the interactive surface based on the shadow of the finger; and enabling touch detection by determining whether the finger is hovering or touching the interactive surface based on an analysis of the shadow of the finger. - View Dependent Claims (7, 8, 9, 10, 11)
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12. A method implemented at least partially by a processor, the method comprising:
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detecting a presence of at least one page; capturing the at least one page as an image; and subsequently projecting the image as a virtual representation onto a projection surface. - View Dependent Claims (13, 14, 15, 16)
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17. A projection-vision system that facilitates sensing and projecting objects as images comprising:
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a memory; a processing unit coupled to the memory; a camera-projection component executed by processing unit and configured to capture an input image using a projector and at least one camera attached to an illuminant; and an image processor component executed by processing unit and configured to process the input image to yield a display image that is projected onto a projection surface upon which the system is placed. - View Dependent Claims (18, 19, 20)
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Specification