Patent ID: 8400450

Claim:
A method implemented by a data processing system comprising: using one or more devices of the data processing system to perform acts including: generating a stereoscopic presentation of a region within an information representation of a digital image, the stereoscopic presentation including a stereoscopic distortion of the digital image in the region surrounded by undistorted portions of the digital image outside of the region by: texture-mapping the information representation onto a lens constructed for the region to form three dimensional (3D) displaced points, wherein the lens includes a focal region having a first height and a plurality of polygonal surfaces forming a single distorted surface, perspectively projecting the displaced points using a first viewing volume to produce a first image, perspectively projecting the displaced points using a second viewing volume to produce a second image, and interlacing the first image and the second image to produce the stereoscopic presentation; and including, in the stereoscopic presentation, a graphical user interface (“GUI”) including at least one lens control icon at a second height, wherein the GUI is configured to allow control of the focal region of the lens, wherein the first height is not zero and wherein the second height is not zero.