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水声图像预处理及目标阴影提取方法研究

发表时间:2010-05-31  浏览量:1403  下载量:444
全部作者: 邬佳伟,范新南
作者单位: 河海大学计算机与信息学院
摘 要: 在简要分析水声图像畸变与噪声特征的基础上,以StarFish 450F侧扫声纳所成图像为对象,运用图像处理手段对其进行预处理,并提出去除水声图像衰减畸变及拖尾效应的算法,而后采用不同的方法对图像进行去噪,并分析比较处理结果。在经过预处理后,通过梯度算子锐化成功提取出所需目标的较为清晰的遮挡阴影,证明了处理方法的有效性。
关 键 词: 图像处理;阴影提取;遮挡阴影
Title: Research on sonar image pre�processing and target block�shadow extraction
Author: WU Jiawei, FAN Xinnan
Organization: College of Computer & Information Engineering, Hohai University
Abstract: In this paper, a brief analysis of sonar image distortion and noise had been made. Taking the image made by StarFish 450F side�scan sonar as the object, it used image processing algorithms to make pre�process to remove acoustic distortion and tailing effect of the image, and then analyzed and compared the results of different ways. After pretreatment, by sharpening the gradient operator successfully, it extracted the required objectives� block�shadows clearly, which proved the effectiveness of the methods.
Key words: image processing; shadow extraction; block shadows
发表期数: 2010年5月第10期
引用格式: 邬佳伟,范新南. 水声图像预处理及目标阴影提取方法研究[J]. 中国科技论文在线精品论文,2010,3(10):1042-1050.
 
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