海洋波浪图象波长和方向信息提取的傅里叶数字变换纹理分析技术
A Digital Fourier Transform Based Texture Analysis for the Extraction of Wave Length and Direction from Ocean Wave Image
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摘要: 本文对海洋波浪图象作数字纹理分析.用二维快速傅里叶变换(2D FFT)提取海浪图象处 理窗口内的功率谱,并据此获得处理窗口内海浪的波长和方向信息,最终获得局部海域的波浪 波长和方向的分布.这些结果可以作为海洋工程、海浪预报、港口建设、海洋渔业等领域研究 的基础.Abstract: A digital texture analysis technique of ocean wave image is presented. The spectrum in the processing window of ocean wave image is extracted by two-dimensional FFT. In accordance with it, the features of ocean wave length and direction in the processing window are obtained. This technique can provide an applicable bases in the areas of oceanics, ocean wave forecast, port construction, and ocean fishery research.
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