Determining slant and pitch of an autostereoscopic display

A system and method are provided for determining a slant and optionally a pitch distance of an autostereoscopic display by generating and displaying a test pattern on the autostereoscopic display, capturing one or more images of the displayed test pattern, and determining the slant by determining a first phase at a first position in the image, determining a second phase at a second position in the image, and determining the slant of the optical elements based on a difference between the first phase and the second phase. Advantageously, the first position and the second position are horizontally and vertically offset from each other in accordance with an assumed value of the slant. This allows the slant measurement to be less susceptible to errors in the assumed pitch distance. In particular, the slant may be determined first, largely independent of the pitch distance, after which the pitch distance may be determined on the basis of the determined slant. Thereby, the slant and optionally the pitch distance may