Abstract: A computing system translates a world space position of a hand of a human target to a screen space position of a user interface and locks the hand to a handle of the user interface if world space parameters of the hand overcome a grab threshold of the handle. When the hand is locked to the handle, the computing system translates a world space position of the hand to a screen space handle position that is constrained along one or more interface guides. The hand is unlocked from the handle at a release position of the handle if world space parameters of the hand overcome a release threshold of the handle. The handle is retained at the release position after the hand is unlocked from the handle.

Abstract: A computing system translates a world space position of a hand of a human target to a screen space position of a user interface and locks the hand to a handle of the user interface if world space parameters of the hand overcome a grab threshold of the handle. When the hand is locked to the handle, the computing system translates a world space position of the hand to a screen space handle position that is constrained along one or more interface guides. The hand is unlocked from the handle at a release position of the handle if world space parameters of the hand overcome a release threshold of the handle. The handle is retained at the release position after the hand is unlocked from the handle.

Abstract: Symbolic gestures and associated recognition technology are provided for controlling a system user-interface, such as that provided by the operating system of a general computing system or multimedia console. The symbolic gesture movements in mid-air are performed by a user with or without the aid of an input device. A capture device is provided to generate depth images for three-dimensional representation of a capture area including a human target. The human target is tracked using skeletal mapping to capture the mid-air motion of the user. The skeletal mapping data is used to identify movements corresponding to pre-defined gestures using gesture filters that set forth parameters for determining when a target's movement indicates a viable gesture. When a gesture is detected, one or more pre-defined user-interface control actions are performed.