高光谱海岸带影像水陆区域分割方法研究

The segmentation method of water and land area in the hyperspectral coastal zone image

高光谱海岸带区域影像的多纹理、多边缘信息特性给区域分割带来困难.在C-V模型基础上针对海岸带区域影像的特性提出一种区域分割的活动轮廓模型,引入一边缘引导函数并对其通过梯度模值来增强捕捉细节信息的能力;此外在模型中还设置了一个约束函数,该函数利用演化曲线内部和外部区域灰度差来调控演化速度.实验结果验证了模型的有效性.

It is difficult to segment the high spectral zone because of its abundant and intricate edge texture information.In this paper,based on the features of coastal zone remote sensing image,we proposed an active contour model for region segmentation which is on the basis of the C-V model.Introduce an edge function to improve the model＇s ability of capturing detail information which is based on the gradient magnitude.The experimental results verify the effectiveness of the proposed model.