An output stage for a digital RF transmitter is provided. According to the inventive process, said organic-inorganic composite can be obtained by a method comprising a post-synthesis silylation step. In one embodiment, the compliance data includes measurements of a physiological condition of the patient as well as patient answers to compliance questions. Each of the multiplex structures identified in the first register transfer level code that satisfy the criteria defining a critical multiplex structure is entered in a list of critical multiplex structures. Finally the warped images are merged to create the high quality virtual image as seen from the selected viewpoint.