Volume 6 Issue 6
Dec.  2013
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SUN Hong-hai, LIU Yan-ying. Application of improved blind deconvolution technology in long-ranged laser spot image restoration[J]. Chinese Optics, 2013, 6(6): 868-875. doi: 10.3788/CO.20130606.868
Citation: SUN Hong-hai, LIU Yan-ying. Application of improved blind deconvolution technology in long-ranged laser spot image restoration[J]. Chinese Optics, 2013, 6(6): 868-875. doi: 10.3788/CO.20130606.868

Application of improved blind deconvolution technology in long-ranged laser spot image restoration

doi: 10.3788/CO.20130606.868
  • Received Date: 10 Sep 2013
  • Rev Recd Date: 16 Nov 2013
  • Publish Date: 10 Dec 2013
  • To improve the precision of long-ranged laser spot position measurement in an outdoor experiment, blind deconvolution technology was proposed to restore the spot image afterwards to lower the impact of atmospheric turbulence on spot imaging. First, classical blind deconvolution algorithms were introduced, of which the shortage is analyzed. Second, an improved blind deconvolution algorithm was designed. The penalty terms were added to TV(Total Variation)objective function and the alternative iterative method was also redesigned. Then, the convergence of the improved method was testified mathematically. Finally, the improved method was compared with other classical methods by experimental simulation. The capability of improved method was testified with several objective figures, and the results show that the Signal to Noise Ratio(SNR) is improved by 15% at least. The restoration result of outdoor experiment proves that the improved method is effective.

     

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