Skeletal control of three-dimensional virtual world
First Claim
Patent Images
1. A data holding device holding instructions executable by a logic device, the instructions comprising:
- instructions to render a three-dimensional virtual gaming world for display on a display device;
instructions to receive a machine-readable virtual skeleton structurally representing a human being sighted by a depth camera in a volume large enough to envelop the human being, the virtual skeleton including a hand joint position in three dimensions corresponding to a position of a hand of the human being;
instructions to render a control cursor for display on the display device, a screen position of the control cursor tracking the hand joint position;
instructions to lock the control cursor to an object in the three-dimensional virtual gaming world if a grab threshold of the object is overcome;
instructions to, when the control cursor is locked to the object, move the object in all three dimensions to track the hand joint position anywhere in the volume, such that movement of the hand effects a corresponding movement of the object in the three-dimensional virtual gaming world; and
instructions to unlock the control cursor from the object at a release position of the object within the three-dimensional virtual gaming world if a release threshold of the object is overcome.
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Abstract
A virtual skeleton includes a plurality of joints and provides a machine readable representation of a human target observed with a three-dimensional depth camera. A relative position of a hand joint of the virtual skeleton is translated as a gestured control, and a three-dimensional virtual world is controlled responsive to the gestured control.
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Citations
15 Claims
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1. A data holding device holding instructions executable by a logic device, the instructions comprising:
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instructions to render a three-dimensional virtual gaming world for display on a display device; instructions to receive a machine-readable virtual skeleton structurally representing a human being sighted by a depth camera in a volume large enough to envelop the human being, the virtual skeleton including a hand joint position in three dimensions corresponding to a position of a hand of the human being; instructions to render a control cursor for display on the display device, a screen position of the control cursor tracking the hand joint position; instructions to lock the control cursor to an object in the three-dimensional virtual gaming world if a grab threshold of the object is overcome; instructions to, when the control cursor is locked to the object, move the object in all three dimensions to track the hand joint position anywhere in the volume, such that movement of the hand effects a corresponding movement of the object in the three-dimensional virtual gaming world; and instructions to unlock the control cursor from the object at a release position of the object within the three-dimensional virtual gaming world if a release threshold of the object is overcome. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A data holding device holding instructions executable by a logic device, the instructions comprising:
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instructions to render a three-dimensional virtual gaming world for display on a display device; instructions to receive a machine-readable virtual skeleton structurally representing a human being sighted by a depth camera, the virtual skeleton including a hand joint position in three dimensions corresponding to a position of a hand of the human being; instructions to render a control cursor as a human-hand image for display on the display device, a screen position of the control cursor tracking the hand joint position; instructions to lock the control cursor to an object in the three-dimensional virtual gaming world if a grab threshold of the object is overcome, where the control cursor when locked to the object is rendered closed on the object; instructions to, when the control cursor is locked to the object, move the object in all three dimensions to track the hand joint position, such that movement of the hand effects a corresponding movement of the object in the three-dimensional virtual gaming world; instructions to unlock the control cursor from the object at a release position of the object within the three-dimensional virtual gaming world if a release threshold of the object is overcome, where the control cursor when unlocked from the object is rendered reopened; and instructions to, responsive to the screen position of the control cursor reaching a scrolling threshold at a visible edge of the three-dimensional virtual gaming world, scrolling the three-dimensional virtual gaming world such that a previously hidden portion of the three-dimensional virtual gaming world adjacent to the visible edge of the three-dimensional virtual gaming world becomes unhidden. - View Dependent Claims (13)
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14. A data holding device holding instructions executable by a logic device, the instructions comprising:
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instructions to render a three-dimensional virtual gaming world for display on a display device; instructions to receive a machine-readable virtual skeleton structurally representing a human being sighted by a depth camera, the virtual skeleton including a hand joint position in three dimensions corresponding to a position of a hand of the human being; instructions to render a visually closable control cursor for display on the display device, a screen position of the control cursor tracking the hand joint position; instructions to lock the control cursor to an object in the three-dimensional virtual gaming world if a grab threshold of the object is overcome, where the control cursor when locked to the object is rendered closed on the object; instructions to, when the control cursor is locked to the object, move the object in all three dimensions to track the hand joint position, such that movement of the hand effects a corresponding movement of the object in the three-dimensional virtual gaming world; and instructions to unlock the control cursor from the object at a release position of the object within the three-dimensional virtual gaming world if a release threshold of the object is overcome, where the control cursor when unlocked from the object is rendered reopened. - View Dependent Claims (15)
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Specification