根据小波变换和Teagar算子的优良特性,设计出一种基于SAR图像的船舶检测算法,并且基于该算法设计出了一套监测系统。该系统能够准确、高品质的实时对船舶进行跟踪监控。此监控系统的核心是这一套新的算法,该算法对SAR图像进行小波变换,然后针对小波变换的低频分量采用Teagar算子进行增强和去噪处理,再将低频分量和高频分量利用逆小波变换获得高品质的SAR图像。并通过实验验证本系统的适用性和优越性。
According to the excellent characteristics of wavelet transform and Teagar operator, a ship detection algorithm based on SAR image is designed, and a set of detection system is designed based on the algorithm. The system can be accurate and high quality real-time tracking and monitoring of the ship. This new algorithm is the core of this system, the algorithm transform SAR image by wavelet, then the low frequency components in wavelet transform be used to enhance the signal and reduce noise by wavelet transform and Teagar operator. The high quality SAR images are obtained by using the inverse wavelet transform of low frequency component and the high frequency component at last. The applicability and superiority of the system are verified by experiments.
2017,39(1A): 177-179 收稿日期:2016-12-12
DOI:10.3404/j.issn.1672-7619.2017.1A.060
分类号:TN959.72
基金项目:吉林省自然科学基金赞助项目(201105027)
作者简介:王海昕(1992-),男,研究方向为传统光学系统成像。
参考文献:
[1] 郑永安, 陈玉春, 宋建社, 等. 基于提升机制小波变换的SAR与多光谱图像融合算法[J]. 计算机工程, 2006(6):195-197.
[2] 李莎, 黄琳, 周剑奇, 等. 基于小波变换的SAR图像压缩算法研究[J]. 计算机测量与控制, 2012(8):2310-2312+2316.
[3] 邬烨文. 一种基于小波变换的SAR图像舰船尾迹检测算法[D]. 上海交通大学, 2009(8):44-45
[4] 秦蕾. 高倍数SAR原始数据压缩算法的研究[D]. 中国科学院研究生院(电子学研究所), 2004(1):173-180.
[5] 李霆, 王东进, 刘发林. 小波变换的SAR原始数据网格编码量化压缩算法[J]. 现代雷达, 2008(5):53-56.