Abstract: A method includes using at least one processor to receive image data including one or more virtual objects and determining a distance between a user extremity and the one or more virtual objects based on the image data. Further, the method includes detecting a first gesture of the user extremity based on the image data and generating a virtual sphere within a virtual object of the one or more virtual objects. The method also includes determining that the distance is less than a threshold, detecting movement of the user extremity based on the image data, and adjusting a position of the virtual object based on the movement of the user extremity.

Abstract: Scanning apparatus comprising a base, a light source mounted on the base, a camera mounted on the base and arranged to observe a workpiece surface to be scanned and an optical waveguide arranged in light receiving relationship with the light source for directing light to the workpiece surface, the optical waveguide being operative to provide uniform, homogeneous diffuse illumination of the workpiece surface, thereby to prevent definition of shadows thereon.