First, we proposed the retrieval method of characteristic variety direction of shallow ocean under water bottom topography, and proved its direction was in accordance with SAR images characteristic.

首先提出了浅海水下地形特征变化方向的提取方法，证明了其提取的方向与SAR图像特征基本一致。

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Final, we proposed the detection algorithm of shallow ocean under water bottom topography in SAR images, amongst it adopted average invariant moments and redefined distance of invariant moments.

最后提出了SAR图像中浅海水下地形的检测算法，其中采用了平均不变矩并重新定义了不变矩的距离。

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The automatic detection algorithm is key technique that carries out dynamic monitoring of shallow ocean under water bottom topography.

自动化检测算法是实现浅海水下地形动态监测的关键技术。

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