1. A method of removing a projected marker projected in a scene from a view of the scene, the method comprising: capturing a first image of the scene using a camera with the projected marker disabled; capturing a second image of the scene, using the camera, with the projected marker enabled, the projected marker being projected onto an object in the scene using an image projector projecting visible light to indicate a reference location in the scene for positioning a virtual object, the second image containing a representation of the projected marker, wherein the second image is interleaved with the first image and the projection of the projected marker by the image projector is synchronised with the capturing of the second image; and forming a data stream using at least the first and second image to generate a view of the scene, the data stream containing data representing the virtual object as part of the captured images of the scene, the virtual object being positioned relative to the projected marker captured in the second image and using pixels from the first image as pixel values at pixel locations where the projected marker was located in the second image to remove the projected marker from the generated view of the scene.