Advances in the Dynallax Solid-State Dynamic Parallax Barrier Autostereoscopic Visualization Display System

Abstract

A solid-state dynamic parallax barrier autostereoscopic display mitigates some of the restrictions present in static barrier systems, such as fixed view-distance range, slow response to head movements, and fixed stereo operating mode. By dynamically varying barrier parameters in real time, viewers may move closer to the display and move faster laterally than with a static barrier system, and the display can switch between 3D and 2D modes by disabling the barrier on a per-pixel basis. Moreover, Dynallax can output four independent eye channels when two viewers are present, and both head-tracked viewers receive an independent pair of left-eye and right-eye perspective views based on their position in 3D space. The display device is constructed by using a dual-stacked LCD monitor where a dynamic barrier is rendered on the front display and a modulated virtual environment composed of two or four channels is rendered on the rear display. Dynallax was recently demonstrated in a small-scale head-tracked prototype system. This paper summarizes the concepts presented earlier, extends the discussion of various topics, and presents recent improvements to the system.

Content-adaptive lenticular prints

“…Time-multiplexed parallax barriers can improve the perceived spatial sampling resolution. Stereoscopic content can be adapted to the viewer's position by tracking their location [Perlin et al 2000;Peterka et al 2008]. The Random Hole Display [Nashel and Fuchs 2009] Lanman et al [2010] improve on parallax barrier displays by using modulation instead of blocking barriers.…”

Mustard

“…One method is to use parallax strip barriers to occlude certain parts of the screen from one eye while allowing another eye to see them. Systems like Perlin et al's autostereoscopic display [15], Varrier [19], and Dynallax [17] demonstrate this concept. Lenticular barriers unlike parallax barriers are not limited to two views.…”

Three-Dimensional Imaging With Multiple Degrees of Freedom Using Data Fusion

“…In many instances, the capabilities of 3-D imaging and display systems have revolutionized the progress of these disciplines, enabling new detection/display abilities that would not have been otherwise possible. There are different methods to create and Other methods use parallax barriers in order to avoid using glasses, adapting their parameters to the viewer position [39]. Content-adaptive parallax barriers for which display elements are optimized for the multiview content are also being developed [40].…”