一种基于Canny和数学形态学的海洋锋检测方法

An ocean front detection method based on the Canny operator and mathematical morphology

MODIS遥感影像中海洋锋呈现明显的弱边缘信息特征。为有效获得海洋锋信息,首先应用调整后的Canny边缘检测算法,获取海洋锋初步检测结果,然后基于数学形态学二值重构及击中击不中算法,对检测出来的海洋锋进行再处理,确保了海洋锋的连续性及定位准确性。试验结果表明了该算法在海洋锋检测上的有效性与实用性。

Ocean front is characterized by weak edges in MODIS remote sensing images. In order to effectively obtain theocean front information,An adjusted Canny edge detection algorithm is applied to detect the ocean front firstly,then themorphological binary reconstruction and Hit-or-Miss algorithmare applied to reprocess the primary ocean front, ensuring thecontinuity and the positioning accuracy of ocean front. The results show that the algorithm is effective and practical in theocean front detection.