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Proceedings Article

Lightfield super-resolution through turbulence

[+] Author Affiliations
Juan M. Trujillo-Sevilla, Juan J. Fernández-Valdivia, Óscar G. Cárdenes, José G. Marichal-Hernández, José M. Rodríguez-Ramos

Univ. de La Laguna (Spain)

Luis F. Rodríguez-Ramos

Instituto de Astrofísica de Canarias (Spain)

Bahram Javidi

Univ. of Connecticut (United States)

Proc. SPIE 9495, Three-Dimensional Imaging, Visualization, and Display 2015, 94950Q (May 22, 2015); doi:10.1117/12.2177295
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From Conference Volume 9495

  • Three-Dimensional Imaging, Visualization, and Display 2015
  • Bahram Javidi; Jung-Young Son
  • Baltimore, Maryland, United States | April 20, 2015

abstract

In this paper, we use information from the light field to obtain a distribution map of the wavefront phase. This distribution is associated with changes in refractive index which are relevant in the propagation of light through a heterogeneous or turbulent medium. Through the measurement of the wavefront phase from a single shot, it is possible to make the deconvolution of blurred images affected by the turbulence. If this deconvolution is applied to light fields obtained by plenoptic acquisition, the original optical resolution associated to the objective lens is restored, it means we are using a kind of superresolution technique that works properly even in the presence of turbulence. The wavefront phase can also be estimated from the defocused images associated to the light field: we present here preliminary results using this approach. © (2015) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Citation

Juan M. Trujillo-Sevilla ; Juan J. Fernández-Valdivia ; Luis F. Rodríguez-Ramos ; Óscar G. Cárdenes ; José G. Marichal-Hernández, et al.
" Lightfield super-resolution through turbulence ", Proc. SPIE 9495, Three-Dimensional Imaging, Visualization, and Display 2015, 94950Q (May 22, 2015); doi:10.1117/12.2177295; http://dx.doi.org/10.1117/12.2177295


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