Compressive single-pixel snapshot x-ray diffraction imaging

Joel Greenberg, Kalyani Krishnamurthy, David Brady

Research output: Contribution to journalArticlepeer-review

66 Scopus citations


We present a method for realizing snapshot, depth-resolved material identification using only a single, energysensitive pixel. To achieve this result, we employ a coded aperture with subpixel features to modulate the energy spectrum of coherently scattered photons and recover the object properties using an iterative inversion algorithm based on compressed sensing theory. We demonstrate high-fidelity object estimation at x-ray wavelengths for a variety of compression ratios exceeding unity.

Original languageEnglish (US)
Pages (from-to)111-114
Number of pages4
JournalOptics letters
Issue number1
StatePublished - Jan 1 2014
Externally publishedYes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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