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- W2232290717 abstract "A new target extraction algorithm based Nonsubsampled Contourlet Transform(NSCT) is proposed according to the difficulty of weak target extraction. Paper detailed analyses and summarizes the data feature of image in NSCT domain, proposes a weak target extraction algorithm using high-frequency coefficients and mathematical morphology. The high-frequency coefficients were calculated by NSCT at first. Then the high-frequency coefficients were processed for noise cancellation by adaptive thresholds in corresponding sub-band. After these operations, the mathematical morphology method was adopted to remedy the defects of image contour. Finally, the object image is obtained by inverse NSCT. The simulation results show that this method can detect the target information fast and accurately, can meet the practical requirement." @default.
- W2232290717 created "2016-06-24" @default.
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- W2232290717 date "2015-12-14" @default.
- W2232290717 modified "2023-09-23" @default.
- W2232290717 title "Weak target extraction algorithm based on nonsubsampled contourlet transform" @default.
- W2232290717 doi "https://doi.org/10.1117/12.2209021" @default.
- W2232290717 hasPublicationYear "2015" @default.
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