Volume 37 Issue 12
Dec.  2012
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Yang Min, Wu Meijin, Wei Dongbo, et al. Turbine blade DR images fusion based on bi-energy X-ray radiography[J]. Journal of Beijing University of Aeronautics and Astronautics, 2011, 37(12): 1494-1497. (in Chinese)
Citation: Yang Min, Wu Meijin, Wei Dongbo, et al. Turbine blade DR images fusion based on bi-energy X-ray radiography[J]. Journal of Beijing University of Aeronautics and Astronautics, 2011, 37(12): 1494-1497. (in Chinese)

Turbine blade DR images fusion based on bi-energy X-ray radiography

  • Received Date: 27 Jul 2010
  • Publish Date: 30 Dec 2012
  • In order to increase the single frame digital radiography(DR) image information of the turbine blade, two DR images were captured at different X-ray energy so as to get the turbine blade quality information at different thickness region firstly. Secondly, the two original DR images were decomposed by wavelet transform, and the maximal local variance role was used to carry out the low sub-frequenced image fusion, and the active factors based on local gradients were calculated to carry out the high sub-frequenced image fusion. Finally, through inverse wavelet transform the output image can be obtained. The experimental results show that the single frame fused turbine blade DR image brings more detailed information, so it is useful to the fast and accurate quality judgements of the turbine blade.

     

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