文献类型：期刊文献

英文题名：A Multi-Stage Enhancement Based on the Attenuation Characteristics of X-Band Marine Radar Images for Oil Spill Extraction

作者：Liu, Peng[1];Zhao, Xingquan[1];Wang, Xuchong[1];Shao, Pengzhe[1];Chen, Peng[1];Zhu, Xueyuan[1];Xu, Jin[2];Li, Ying[1];Liu, Bingxin[1]

机构：[1]Dalian Maritime Univ, Nav Coll, Dalian 116026, Peoples R China;[2]Guangdong Ocean Univ, Maritime Coll, Zhanjiang 524091, Peoples R China

年份：2025

卷号：6

期号：3

外文期刊名：OCEANS-SWITZERLAND

收录：ESCI(收录号：WOS:001580703700001)、WOS

基金：This research was funded by National Natural Science Foundation of China, grant number 52271359; Fundamental Research Funds for the Central Universities, grant number 3132025141.

语种：英文

外文关键词：oil spill; marine radar imagery; oil spill detection; image enhancement

外文摘要：Marine oil spills cause significant environmental damage worldwide. Marine radar imagery is used for oil spill detection. However, the rapid attenuation of backscatter intensity with increasing distance limits detectable coverage. A multi-stage image enhancement framework integrating background clutter fitting subtraction, Multi-Scale Retinex, and Gamma correction is proposed. Experimental results using marine radar images sampled in the oil spill incident in Dalian 2010 are used to demonstrate the significant improvements. Compared to Contrast-Limited Adaptive Histogram Equalization and Partially Overlapped Sub-block Histogram Equalization, the proposed method enhances image contrast by 24.01% and improves the measurement of enhancement by entropy by 17.11%. Quantitative analysis demonstrates 95% oil spill detection accuracy through visual interpretation, while significantly expanding detectable coverage for oil extraction.