CAMERA-BASED TOUCH SYSTEM
First Claim
1. A camera-based touch system comprising:
- at least two cameras associated with a passive touch surface and having overlapping fields of view encompassing said touch surface, said at least two cameras acquiring images of said touch surface from different locations and generating image data; and
a processor receiving and processing image data generated by said at least two cameras to determine the location of a pointer relative to said touch surface when said pointer is captured in images acquired by said at least two cameras.
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Accused Products
Abstract
A camera-based touch system (50) includes a passive touch surface (60) and at least two cameras (63) associated with the touch surface. The at least two cameras (63) have overlapping fields of view (FOV) encompassing the touch surface. The at least two cameras (63) acquire images of the touch surface from different locations and generate image data. A processor (54) receives and processes image data generated by the at least two cameras to determine the location of the pointer relative to the touch surface when the pointer is captured in images acquired by the at least two cameras. Actual pointer contact with the touch surface and pointer hover above the touch surface can be determined.
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Citations
1 Claim
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1. A camera-based touch system comprising:
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at least two cameras associated with a passive touch surface and having overlapping fields of view encompassing said touch surface, said at least two cameras acquiring images of said touch surface from different locations and generating image data; and a processor receiving and processing image data generated by said at least two cameras to determine the location of a pointer relative to said touch surface when said pointer is captured in images acquired by said at least two cameras.
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Specification