Patent Document ID: 9153059
Application ID: 13713925
Patent Status: 1

Claim One:
1. A method for displaying an image onto a relief projection surface using a projection system, the method comprising setting the projection system to obtain and save a value of a setting parameter thereof, defining one of colors and textures for individual facets of a computer model defining the relief projection surface, constructing an image to be projected according to the computer model, to at least one of the colors and textures defined for the individual facets, and to the saved value for the setting parameter, and projecting the constructed image onto a projection surface of a three dimensional screen produced in a translucent material, the screen comprising a front face on which the projected image is displayed and a rear face forming the projection surface, wherein setting the projection system comprises automatically measuring, using a fixed camera, a distance separating virtual reference frame points projected onto the projection surface from real reference frame points produced on the three-dimensional screen, the method further comprising acquiring, using the fixed camera, an image of the rear face of the three-dimensional screen, identifying a position of a finger in contact with the front face of the three-dimensional screen in the acquired image, and controlling an appliance according to the identified position of the finger; wherein setting the projection system comprises saving a computer model defining the relief projection surface and positions of at least four virtual reference frame points on the projection surface, producing the three-dimensional screen comprising the projection surface defined by the computer model and the real reference frame points fixed with no degree of freedom on the projection surface at the positions of the virtual reference frame points defined by the computer model, constructing an image containing the virtual reference frame points based at least in part on the computer model and a value chosen for the setting parameter of the projection system, using a projector, projecting the constructed image onto the projection surface, automatically measuring the distance separating, on the projection surface, the projected virtual reference frame points from the real reference frame points, if the measured distance is greater than a predetermined threshold, automatically modifying the value of the setting parameter to reduce the distance and reiteration of the constructing step, the projection step, the automatic measurement step, and the automatic modification step, and if the measured distance is less than the predetermined threshold, saving the value of the setting parameter for use in a subsequent projection of an image onto the projection surface.