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pro vyhledávání: '"刘希佳 Liu Xi-jia"'
Publikováno v:
Chinese Journal of Optics and Applied Optics. 5:248-256
In order to obtain better de-noising effects and higher Signal-to-noise Ratios(SNRs) for recognizing small targets,the local variance estimation method is adopted to calculate the threshold.Different thresholds are selected for all the high-frequency