High spatio-temporal resolution video with compressed sensing

Roman Koller, Lukas Schmid, Nathan Matsuda, Thomas Niederberger, Leonidas Spinoulas, Oliver Strides Cossairt, Guido Schuster, Aggelos K Katsaggelos

Research output: Contribution to journalArticlepeer-review

48 Scopus citations

Abstract

We present a prototype compressive video camera that encodes scene movement using a translated binary photomask in the optical path. The encoded recording can then be used to reconstruct multiple output frames from each captured image, effectively synthesizing high speed video. The use of a printed binary mask allows reconstruction at higher spatial resolutions than has been previously demonstrated. In addition, we improve upon previous work by investigating tradeoffs in mask design and reconstruction algorithm selection. We identify a mask design that consistently provides the best performance across multiple reconstruction strategies in simulation, and verify it with our prototype hardware. Finally, we compare reconstruction algorithms and identify the best choice in terms of balancing reconstruction quality and speed.

Original languageEnglish (US)
Pages (from-to)15992-16007
Number of pages16
JournalOptics Express
Volume23
Issue number12
DOIs
StatePublished - Jun 15 2015

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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