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HE Chang-tao, MA Zi, CHEN Jian-guo, ZHAO Ru-jin. Recognition of film laser damage based on wavelet transform[J]. LASER TECHNOLOGY, 2007, 31(2): 131-133,136.
Citation: HE Chang-tao, MA Zi, CHEN Jian-guo, ZHAO Ru-jin. Recognition of film laser damage based on wavelet transform[J]. LASER TECHNOLOGY, 2007, 31(2): 131-133,136.
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Recognition of film laser damage based on wavelet transform

  • 1.

    Department of Opto-electronic, Sichuan University, Chengdu 610064, China;

  • 2.

    Southwest Institute of Technical Physics, Chengdu 610041, China;

  • 3.

    Insititute of Information Engineering, University of Southwest Science and Technology, Mianyang 621002, China

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  • Received Date: March 27, 2006
  • Revised Date: April 26, 2006
  • Published Date: April 24, 2007
    Graphical Abstract
    • Abstract
  • The correct recognition of film damage plays an important role in the experiment of measuring laser damage threshold.In ISO11254,film damage is recongnized through observation under a microscope.In order to realize on-line and automatic damage recognition,adopting the method of digital image processing,combining wavelet transform with pattern correlation recognition technology,how to carry out film laser damage recognition with wavelet transform is realized.The result illustrates this method not only has highest precision but also avoids heavy labor manipulation and play an important role in automatic damage threshold measurement.
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    • References (12)
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