Gesture recognition method and touch system incorporating the same
First Claim
Patent Images
1. An event generation method comprising the steps of:
- capturing images of a touch surface from different vantages using imaging devices that are proximate to the touch surface and aimed to look generally across said touch surface;
processing the captured images to detect successive pointer contacts on said touch surface and to recognize a gesture based on the relative positions of the successive pointer contacts and the subsequent relative movement of the pointers along the touch surface; and
generating an event when a gesture is recognized.
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Abstract
A gesture recognition method includes detecting multiple pointers in close proximity to a touch surface to determine if the multiple pointers are being used to perform a known gesture. When the multiple pointers are being used to perform a known gesture, executing a command associated with the gesture. A touch system incorporating the gesture recognition method is also provided.
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Citations
56 Claims
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1. An event generation method comprising the steps of:
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capturing images of a touch surface from different vantages using imaging devices that are proximate to the touch surface and aimed to look generally across said touch surface; processing the captured images to detect successive pointer contacts on said touch surface and to recognize a gesture based on the relative positions of the successive pointer contacts and the subsequent relative movement of the pointers along the touch surface; and generating an event when a gesture is recognized. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An event generation method comprising the steps of:
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detecting successive pointers brought into contact with and oriented generally normal to a touch surface and examining the relative positions of the pointer contacts and the subsequent relative movement of said pointers along said touch surface by processing images of the touch surface captured using imaging devices that are proximate to the touch surface and aimed to look generally across the touch surface to determine if a gesture has been input; and generating an event when an input gesture is determined. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. An event generation method comprising the steps of:
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capturing images of a touch surface from different vantages using imaging devices that are proximate to the touch surface and aimed to look generally across said touch surface; processing the captured images to detect successive pointers brought into contact with said touch surface and to recognize a gesture based on the pointer contact positions and the subsequent relative movement of the pointers along said touch surface; and generating an event when a gesture is recognized. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30, 31, 32)
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33. An event generation method comprising the steps of:
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detecting multiple pointers brought successively into contact with and oriented substantially normal to a touch surface and examining the relative positions of the pointer contacts and the subsequent relative movement of said pointers along said touch surface by processing images of the touch surface captured using imaging devices that are proximate to the touch surface and aimed to look generally across the touch surface to determine if a gesture has been input; and generating an event when an input gesture is determined. - View Dependent Claims (34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44)
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45. An event generation method comprising the steps of:
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capturing images from different vantages using imaging devices that are proximate to and aimed to look generally across a pointer input region; processing the captured images to detect positions of multiple pointers brought successively into said pointer input regions and to recognize a gesture based on the detected pointer positions and the subsequent relative movement of the pointers within said pointer input region; and generating an event when a gesture is recognized. - View Dependent Claims (46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56)
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Specification