Method for gesture-based operation control
First Claim
1. A method for scrolling displayed content, the method comprising:
- detecting, in a series of acquired images of a user of a device on which the content is displayed, a movement of a head of the user;
determining that the detected movement corresponds to a gesture when it exceeds an ignore range of at least one of angular and positional movements;
when the movement corresponds to a gesture, scrolling the displayed content as indicated by the gesture; and
when the movement returns to the ignore range, adjusting the scrolling by at least one of stopping and changing scrolling rate,wherein gestures that mimic natural head movements correspond to scrolling that mimics viewing of a physical object.
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Abstract
A method may track a motion of a body part in a series of images captured by an imager that is associated with an electronic device, and detect in such motion a gesture of the body part that matches a pre-defined gesture. Upon such detection of the gesture, a function that is associated with the gesture is activated but only upon a contact or other input, such as a push of a button by a user. The combination of the ‘push to enable’ and the ‘gesture to activate the function’ may provide comfortable operation of the gesture activation of a function. A system and method of altering a zoom of an image displayed on an electronic device by detecting in a series of images a change in distance between the device and a viewer of the image, and zooming the image to correspond to such change in position. The captured images and detected change in distance may be interpreted by a processor as a zoom gesture that may trigger a zoom of the displayed image. A system and method of activating a scroll function for content that is displayed on an electronic screen, including capturing a series of images of a body part, such as a head, of a viewer of the content, and detecting a rotation, a change in orientation, or a change in a position of such head. A method may interpret the detected change as a gesture, and activate a scroll function to scroll the displayed content in a direction opposite the direction of the gesture or with other parameters defined by the detected gesture.
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Citations
20 Claims
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1. A method for scrolling displayed content, the method comprising:
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detecting, in a series of acquired images of a user of a device on which the content is displayed, a movement of a head of the user; determining that the detected movement corresponds to a gesture when it exceeds an ignore range of at least one of angular and positional movements; when the movement corresponds to a gesture, scrolling the displayed content as indicated by the gesture; and when the movement returns to the ignore range, adjusting the scrolling by at least one of stopping and changing scrolling rate, wherein gestures that mimic natural head movements correspond to scrolling that mimics viewing of a physical object. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A device comprising:
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a display screen configurable to display a content; an imaging device configurable to acquire a series of images of a head of a user of the device; a processor configured to; detect in the series of acquired images, a movement of the user'"'"'s head; and determine that the detected movement corresponds to a gesture when it exceeds an ignore range of at least one of angular and positional movements; scroll the displayed content when the detected movement corresponds to a gesture in a manner indicated by the detected movement; and when the detected movement returns to the ignore range, adjust the scrolling by at least one of stopping and changing scrolling rate, wherein gestures that mimic natural head movements correspond to scrolling that mimics viewing of a physical object. - View Dependent Claims (13, 14, 15, 16, 17)
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18. A method of activating a scroll function on an electronic display, the method comprising:
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detecting, in a series of images captured by an imager, said imager associated with the display, a movement of a head of a viewer to a pre-defined orientation, said movement associated with activation of said scroll function; determining that the detected movement exceeds an ignore range of at least one of angular and positional movements; activating said scroll function for the duration of a period that the head retains said orientation; and when the detected movement returns to the ignore range, adjusting the scrolling to at least one of stopping and scrolling rate change, wherein gestures that mimic natural head movements correspond to scrolling that mimics viewing of a physical object. - View Dependent Claims (19, 20)
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Specification