Computational Spectral Imaging with Photon Sieves

ÖKTEM S. F., Kamalabadi F., Davila J. M.

24th Signal Processing and Communication Application Conference (SIU), Zonguldak, Turkey, 16 - 19 May 2016, pp.425-428 identifier identifier

  • Publication Type: Conference Paper / Full Text
  • Volume:
  • Doi Number: 10.1109/siu.2016.7495768
  • City: Zonguldak
  • Country: Turkey
  • Page Numbers: pp.425-428
  • Middle East Technical University Affiliated: Yes


Spectral imaging, the sensing of spatial information as a function of wavelength, is a widely used diagnostic technique in diverse fields such as physics, chemistry, biology, medicine, astronomy, and remote sensing. In this paper, we present a novel computational imaging modality that enables high-resolution spectral imaging by distributing the imaging task between a photon sieve system and a computer. The photon sieve system, coupled with a moving detector, provides measurements from multiple planes. Then an inverse problem is solved in a Bayesian estimation framework to reconstruct the multi-spectral images from these superimposed and blurred measurements. The results illustrate that this technique enables higher spatial and spectral resolution than conventional filtered-based spectral imagers.