应用相位一致性评价多光谱遥感图像条带噪声

Assessing stripe noise of multispectral remote sensing image based on phase congruency

  • 摘要: 条带噪声是影响多光谱遥感图像质量的重要因素之一,严重影响遥感数据的解译和信息提取。提出一种应用相位一致性进行多光谱遥感图像条带噪声质量评价的方法。该方法不受图像亮度或对比度变化的影响,以频域中相位一致性探测图像特征点,综合考虑图像中条带噪声的数量、长度、宽度和强度建立评价因子,客观评价遥感图像中存在的条带噪声对图像质量的影响。实验证明该方法评价结果符合人眼视觉感官评价。

     

    Abstract: Stripe noise is one of the important factors affecting the quality of multispectral remote sensing image, seriously influencing the interpretation of remote sensing data and information extraction. A multispectral remote sensing image quality assessment method aimed at stripe noise based on phase congruency was proposed. This method, which extracts phase congruency point in the frequency domain as the image feature, is not affected by image brightness or contrast, and can objectively evaluate the stripe noise existing in the multispectral remote sensing image by considering the number, length, width, and the intensity of the stripe noise in the image. The experiments show that the proposed algorithm correlates well with subjective quality evaluations.

     

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