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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 22, Iss. 8 — Apr. 21, 2014
  • pp: 8928–8942

A transparent thin-film sensor for multi-focal image reconstruction and depth estimation

Alexander Koppelhuber, Clemens Birklbauer, Shahram Izadi, and Oliver Bimber  »View Author Affiliations

Optics Express, Vol. 22, Issue 8, pp. 8928-8942 (2014)

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We present a fully transparent and flexible light-sensing film that, based on a single thin-film luminescent concentrator layer, supports simultaneous multi-focal image reconstruction and depth estimation without additional optics. Together with the sampling of two-dimensional light fields propagated inside the film layer under various focal conditions, it allows entire focal image stacks to be computed after only one recording that can be used for depth estimation. The transparency and flexibility of our sensor unlock the potential of lensless multilayer imaging and depth sensing with arbitrary sensor shapes – enabling novel human-computer interfaces.

© 2014 Optical Society of America

OCIS Codes
(110.0110) Imaging systems : Imaging systems
(110.3010) Imaging systems : Image reconstruction techniques

ToC Category:

Original Manuscript: January 16, 2014
Manuscript Accepted: March 22, 2014
Published: April 7, 2014

Virtual Issues
Vol. 9, Iss. 6 Virtual Journal for Biomedical Optics

Alexander Koppelhuber, Clemens Birklbauer, Shahram Izadi, and Oliver Bimber, "A transparent thin-film sensor for multi-focal image reconstruction and depth estimation," Opt. Express 22, 8928-8942 (2014)

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  1. H. C. Ko, M. P. Stoykovich, J. Song, V. Malyarchuk, W. M. Choi, C. J. Yu, J. B. Geddes, J. Xiao, S. Wang, Y. Huang, J. A. Rogers, ”A hemispherical electronic eye camera based on compressible silicon optoelectronics,” Nature 454(7205), 748–753, (2008). [CrossRef] [PubMed]
  2. Y. M. Song, Y. Xie, V. Malyarchuk, J. Xiao, I. Jung, K. J. Choi, Z. Liu, H. Park, C. Lu, R. Kim, R. Li, K. B. Crozier, Y. Hung, J. A. Rogers, ”Digital cameras with designs inspired by the arthropod eye,” Nature 497(7447), 95–99, (2013). [CrossRef] [PubMed]
  3. A. F. Abouraddy, O. Shapira, M. Bayindir, J. Arnold, F. Sorin, D. S. Hinczewski, J. D. Joannopoulos, Y. Fink, ”Large-scale optical-field measurements with geometric fibre constructs,” Nat. Mater. 5(7), 532–536, (2006). [CrossRef] [PubMed]
  4. A. Koppelhuber, O. Bimber, ”Towards a transparent, flexible, scalable and disposable image sensor using thin-film luminescent concentrators,” Opt. Express 21, 4796–4810 (2013). [CrossRef] [PubMed]
  5. T. N. Ng, W. S. Wong, M. L. Chabinyc, S. Sambandan, R. A. Street, ”Flexible image sensor array with bulk heterojunction organic photodiode,” Appl. Phys. Lett. 92(21), 213303 (2008). [CrossRef]
  6. D. L. Donoho, Compressed sensing, IEEE T. Inform. Theory 52(4), 1289–1306 (2006). [CrossRef]
  7. J. Hunt, T. Driscoll, A. Mrozack, G. Lipworth, M. Reynolds, D. Brady, D. R. Smith, ”Metamaterial apertures for computational imaging,” Science 339, 310–313 (2013). [CrossRef] [PubMed]
  8. J. S. Batchelder, A. H. Zewail, T. Cole, ”Luminescent solar concentrators. 1: theory of operation and techniques for performance evaluation,” Appl. Optics 18(18), 3090–3110, (1979). [CrossRef]
  9. A. H. Andersen, A. C. Kak, ”Simultaneous algebraic reconstruction technique (SART): a superior implementation of the ART algorithm,” Ultrasonic Imaging 6(1), 81–94, (1984). [PubMed]
  10. A. Pentland, ”A new sense for depth of field,” IEEE T. Pattern Anal. 9, 523–531 (1987). [CrossRef]
  11. S. Chaudhuri, A. N. Rajagopalan, Depth From Defocus: A Real Aperture Imaging Approach. (Springer Verlag, 1999).
  12. M. Rosenblatt, ”Remarks on some nonparametric estimates of a density function,” Ann. Math. Stat. 27, 832–837 (1956). [CrossRef]
  13. E. Parzen, ”On estimation of a probability density function and mode,” Ann. Math. Stat. 33, 1065 (1962). [CrossRef]
  14. I. Tosic, P. Frossard, ”Dictionary learning,” IEEE Signal Proc. Mag. 28, 27–38 (2011). [CrossRef]

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