v3 parallax scanning methods were developed by Vision III as a way of handling the inherent flaws in square-wave imaging. These methods also rely on discrete parallax differences between depth planes in a scene. The differences in this case, however are introduced by a parallax scan. When such images are properly balanced (tuned) and displayed, the discrete parallax differences are perceived by the viewer as enhanced texture and depth.
A continuously moving scanning viewpoint is used to create a pattern of sequential parallax views, which are recorded on a single image stream. The lens's optical axis (viewpoint) sweeps in the plane of the nominal X and Y axes around the nominal optical Z axis, pivoting on the optical convergence point (out along the Z axis), so that it passes through positions having parallax in relation to the optical convergence point ( See Fig. 1).