Abstract

It is shown that one can make use of local instabilities in turbulent video frames to enhance image resolution beyond the limit defined by the image sampling rate. We outline the processing algorithm, present its experimental verification on simulated and real-life videos, and discuss its potentials and limitations.

© 2007 Optical Society of America

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References

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  1. M. C. Roggermann and B. Welsh, Imaging Through Turbulence (CRC Press, 1996).
  2. S. Gepshtein, A. Shtainman, B. Fishbain, and L. Yaroslavsky, in The 2004 European Signal Processing Conference (EUSIPCO-2004), J.Platt, ed. (2004), pp. 477-480.
  3. L. Yaroslavsky, B. Fishbain, I. Ideses, D. Slasky, and Z. Hadas, in Proceedings of ICO Topical Meeting on Optoinformatics/Information Photonics (ITMO, 2006), pp. 138-140.
  4. B. Fishbain, L. P. Yaroslavsky, I. A. Ideses, A. Shtern, and O. Ben-Zvi, Proc. SPIE 6496, 64960C (2007).
    [CrossRef]
  5. B. Fishbain, I. A. Ideses, Sh. Gepstein, and L. P. Yaroslavsky, in Proceedings of The 11th Meeting on Optical Engineering and Science in Israel, Tel-Aviv, March 26-27, 2007.
  6. B. Fishbain, L. P. Yaroslavsky, and I. A. Ideses, in Proceedings of the 7th IASTED International Conference on Visualization, Imaging, and Image Processing (VIIP, 2007), pp. 213-218.
  7. Z. Zalevsky, Sh. Rozental, and M. Meller, Opt. Lett. 32, 1072 (2007).
    [CrossRef] [PubMed]
  8. T. Brox, A. Bruhn, N. Papenberg, and J. Weickert, in Proceedings of the 8th European Conference on Computer Vision, T.Pajdla and J.Matas, eds., Vol. 4 of Springer Lecture Notes in Computer Science (Springer-Verlag, 2004), pp. 25-36.
  9. L. J. Barron, D. J. Fleet, and S. S. Beachemin, Inf. Sci. (N.Y.) 12, 43 (1994).
  10. L. Yaroslavsky, Digital Holography and Digital Image Processing (Kluwer Scientific, 2004).
  11. I. Ideses, L. Yaroslavsky, B. Fishbain, and R. Vistuch, Proc. SPIE 6490, 64901C (2007).
    [CrossRef]
  12. F. Crete, T. Dolmiere, P. Ladret, and M. Nicolas, Proc. SPIE 6492, 64920I (2007).
    [CrossRef]

2007 (4)

B. Fishbain, L. P. Yaroslavsky, I. A. Ideses, A. Shtern, and O. Ben-Zvi, Proc. SPIE 6496, 64960C (2007).
[CrossRef]

I. Ideses, L. Yaroslavsky, B. Fishbain, and R. Vistuch, Proc. SPIE 6490, 64901C (2007).
[CrossRef]

F. Crete, T. Dolmiere, P. Ladret, and M. Nicolas, Proc. SPIE 6492, 64920I (2007).
[CrossRef]

Z. Zalevsky, Sh. Rozental, and M. Meller, Opt. Lett. 32, 1072 (2007).
[CrossRef] [PubMed]

1994 (1)

L. J. Barron, D. J. Fleet, and S. S. Beachemin, Inf. Sci. (N.Y.) 12, 43 (1994).

Inf. Sci. (N.Y.) (1)

L. J. Barron, D. J. Fleet, and S. S. Beachemin, Inf. Sci. (N.Y.) 12, 43 (1994).

Opt. Lett. (1)

Proc. SPIE (3)

I. Ideses, L. Yaroslavsky, B. Fishbain, and R. Vistuch, Proc. SPIE 6490, 64901C (2007).
[CrossRef]

F. Crete, T. Dolmiere, P. Ladret, and M. Nicolas, Proc. SPIE 6492, 64920I (2007).
[CrossRef]

B. Fishbain, L. P. Yaroslavsky, I. A. Ideses, A. Shtern, and O. Ben-Zvi, Proc. SPIE 6496, 64960C (2007).
[CrossRef]

Other (7)

B. Fishbain, I. A. Ideses, Sh. Gepstein, and L. P. Yaroslavsky, in Proceedings of The 11th Meeting on Optical Engineering and Science in Israel, Tel-Aviv, March 26-27, 2007.

B. Fishbain, L. P. Yaroslavsky, and I. A. Ideses, in Proceedings of the 7th IASTED International Conference on Visualization, Imaging, and Image Processing (VIIP, 2007), pp. 213-218.

T. Brox, A. Bruhn, N. Papenberg, and J. Weickert, in Proceedings of the 8th European Conference on Computer Vision, T.Pajdla and J.Matas, eds., Vol. 4 of Springer Lecture Notes in Computer Science (Springer-Verlag, 2004), pp. 25-36.

L. Yaroslavsky, Digital Holography and Digital Image Processing (Kluwer Scientific, 2004).

M. C. Roggermann and B. Welsh, Imaging Through Turbulence (CRC Press, 1996).

S. Gepshtein, A. Shtainman, B. Fishbain, and L. Yaroslavsky, in The 2004 European Signal Processing Conference (EUSIPCO-2004), J.Platt, ed. (2004), pp. 477-480.

L. Yaroslavsky, B. Fishbain, I. Ideses, D. Slasky, and Z. Hadas, in Proceedings of ICO Topical Meeting on Optoinformatics/Information Photonics (ITMO, 2006), pp. 138-140.

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Figures (2)

Fig. 1
Fig. 1

Illustrative simulation results of the resolution enhancement of turbulent video frames: (a) initial high resolution frame, (b) example of a low-resolution frame obtained by a camera with a fill factor 0.05, (c) resolution-enhanced frame obtained by the described fusion process with 50 iterations of the reinterpolation from 15 low resolution frames distorted by simulated random local displacements with a standard deviation of 0.5 interpixel distance.

Fig. 2
Fig. 2

Illustration of resolution enhancement of real-life video frames (a) a 256 × 256 pixel fragment of the stabilized frame; (b) same fragment after resolution enhancement; (c) difference between images (a) and (b) that show edges enhanced in image (b); (d) image (b) after reinterpolation and aperture correction.

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