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Optica Publishing Group
  • Chinese Optics Letters
  • Vol. 9,
  • Issue 5,
  • pp. 051001-
  • (2011)

Improved multilevel filters to enhance infrared small target

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Abstract

We propose improved multilevel filters (IMLFs) involving the absolute value operation into the algorithmic framework of traditional multilevel filters (MLFs) to improve the robustness of infrared small target enhancement techniques under a complex infrared cluttered background. Compared with the widely used small target enhancement methods which only deal with bright targets, the proposed technique can enhance the infrared small target, whether it is bright or dark. Experimental results verify that the proposed technique is efficient and practical.

© 2011 Chinese Optics Letters

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