System and method for gesture based touchscreen control of displays
AssigneeThomas Licensing
InventorMark Francis Rumreich
Life of this patent
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Abstract
Methods and apparatus are provided for a gesture based touchscreen for control of a display. The methods and apparatus capture a reference image and identify portions of the captured image corresponding to a reference image, or corresponding to a known image portion, such as a pushbutton. The method processes portions of the captured image relative to the displayed or known image portion and generates a measure, such as a difference. The method also determines whether the measure, such as the difference, exceeds a threshold for at least some period of time, to determine whether to take some action in response to the determination. The action taken could correspond to the pushbuttons on the display
Claims7
A method for interfacing with a reference image, comprising the steps of:
- capturing an image comprising a reference image;
- identifying a portion of the captured image that corresponds to the reference image;
- normalizing said identified portion of the captured image with respect to the reference image;
- calculating a difference between the normalized portion of the captured image and the reference image for at least one image region;
- determining if at least one difference exceeds a threshold for at least some period of time, and
- taking an action in response to said determining step.
A method for interfacing with a reference image, comprising the steps of:
- capturing an image comprising pushbuttons;
- identifying regions comprising pushbuttons in the captured image;
- comparing a measure of the regions comprising pushbuttons with respect to each other;
- determining if any measure exceeds a threshold for at least some period of time, and
- taking an action in response to said determining step.
An apparatus for interfacing with a reference image, comprising:
- a camera that captures an image;
- an image reference matcher for identifying a portion of the captured image that corresponds to a reference image;
- a normalizer for normalizing said identified portion of the captured image with respect to the reference image;
- a difference calculator for generating a difference between the normalized portion of the captured image and the reference image for at least one image region;
- a comparator for determining if at least one difference exceeds a threshold for at least some period of time;
- and
- circuitry for taking an action in response to said comparator determination.
Dependencies are inferred from the claim text.