Beyond parallax barriers: Applying formal optimization methods to multilayer automultiscopic displays

Douglas Lanman*, Gordon Wetzstein, Matthew Hirsch, Wolfgang Heidrich, Ramesh Raskar

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

14 Scopus citations

Abstract

This paper focuses on resolving long-standing limitations of parallax barriers by applying formal optimization methods. We consider two generalizations of conventional parallax barriers. First, we consider general two-layer architectures, supporting high-speed temporal variation with arbitrary opacities on each layer. Second, we consider general multi-layer architectures containing three or more light-attenuating layers. This line of research has led to two new attenuation-based displays. The High-Rank 3D (HR3D) display contains a stacked pair of LCD panels; rather than using heuristically-defined parallax barriers, both layers are jointly-optimized using low-rank light field factorization, resulting in increased brightness, refresh rate, and battery life for mobile applications. The Layered 3D display extends this approach to multi-layered displays composed of compact volumes of light-attenuating material. Such volumetric attenuators recreate a 4D light field when illuminated by a uniform backlight. We further introduce Polarization Fields as an optically-efficient and computationally efficient extension of Layered 3D to multi-layer LCDs. Together, these projects reveal new generalizations to parallax barrier concepts, enabled by the application of formal optimization methods to multi-layer attenuation-based designs in a manner that uniquely leverages the compressive nature of 3D scenes for display applications.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE-IS and T Electronic Imaging - Stereoscopic Displays and Applications XXIII
DOIs
StatePublished - Apr 30 2012
EventStereoscopic Displays and Applications XXIII - Burlingame, CA, United States
Duration: Jan 23 2012Jan 25 2012

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume8288
ISSN (Print)0277-786X

Other

OtherStereoscopic Displays and Applications XXIII
CountryUnited States
CityBurlingame, CA
Period01/23/1201/25/12

Keywords

  • automultiscopic displays
  • computational displays
  • light fields
  • multi-layer LCDs
  • parallax barriers

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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