Cascaded displays: Spatiotemporal superresolution using offset pixel layers

Douglas Lanman, Felix Heide, Dikpal Reddy, Jan Kautz, Kari Pulli, David Luebke

Research output: Chapter in Book/Report/Conference proceedingConference contribution

29 Scopus citations

Abstract

We demonstrate that layered spatial light modulators (SLMs), subject to fixed lateral displacements and refreshed at staggered intervals, can synthesize images with greater spatiotemporal resolution than that afforded by any single SLM used in their construction. Dubbed cascaded displays, such architectures enable superresolution flat panel displays (e.g., using stacks of liquid crystal displays (LCDs)) and digital projectors (e.g., relaying the image of one SLM onto another). We introduce a comprehensive optimization framework, leveraging non-negative matrix and tensor factorization, that decomposes target images and videos into multilayered, time-multiplexed attenuation patterns-offering a trade-off between image brightness, spatial resolution, and refresh rate. We develop a real-time dual-layer factorization method that quadruples spatial resolution and doubles refresh rate. Compared to prior superresolution displays, cascaded displays place fewer restrictions on the hardware, offering thin designs without moving parts or the need for temporal multiplexing. We validate these concepts using three prototypes: printed multi-layer films, a dual-modulation liquid crystal on silicon (LCoS) projector, and a dual-layer LCD, with the latter emphasizing head-mounted display (HMD) applications.

Original languageEnglish (US)
Title of host publicationACM SIGGRAPH 2014 Emerging Technologies, SIGGRAPH 2014
PublisherAssociation for Computing Machinery
ISBN (Print)9781450329613
DOIs
StatePublished - Jan 1 2014
Externally publishedYes
EventACM Special Interest Group on Computer Graphics and Interactive Techniques Conference, SIGGRAPH 2014 - Vancouver, BC, Canada
Duration: Aug 10 2014Aug 14 2014

Publication series

NameACM SIGGRAPH 2014 Emerging Technologies, SIGGRAPH 2014

Other

OtherACM Special Interest Group on Computer Graphics and Interactive Techniques Conference, SIGGRAPH 2014
CountryCanada
CityVancouver, BC
Period8/10/148/14/14

All Science Journal Classification (ASJC) codes

  • Computer Graphics and Computer-Aided Design
  • Computer Vision and Pattern Recognition

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    Lanman, D., Heide, F., Reddy, D., Kautz, J., Pulli, K., & Luebke, D. (2014). Cascaded displays: Spatiotemporal superresolution using offset pixel layers. In ACM SIGGRAPH 2014 Emerging Technologies, SIGGRAPH 2014 [5] (ACM SIGGRAPH 2014 Emerging Technologies, SIGGRAPH 2014). Association for Computing Machinery. https://doi.org/10.1145/2614066.2614071