耀斑遥感图像均衡化的多项式拟合方法

发布时间：2018-04-21 07:21

本文选题：太阳耀斑 + 均衡化　；参考：《中国海洋大学学报(自然科学版)》2010年06期

【摘要】：光学遥感图像中光斑区的出现是不可避免的,以MODIS为代表的中分辨率光学遥感器具有更宽的覆盖宽度,其耀斑区范围更大。耀斑区虽然对于传统的水色遥感是噪声,但对于海洋内波等动力过程的观测却是非常有益的。由于耀斑区的亮度远大于其它,因此为了观测整景图像范围的内波需要进行均衡化处理。本文以MODIS图像为例,发展了基于多项式函数的拟合方法,较好的实现了图像的均衡化处理,处理后的图像亮度变化均匀,可以清楚的观测整景图像各个部分的内波,而不需要逐一进行图像增强。
[Abstract]:The appearance of optical spot region in optical remote sensing image is inevitable. The middle resolution optical remote sensor represented by MODIS has wider coverage width and wider flare area. Although the flare region is noise for the traditional water color remote sensing, it is very useful for the observation of the dynamic processes such as ocean internal waves. Because the brightness of flare region is much higher than that of other regions, equalization is needed to observe the internal waves in the whole image range. Taking MODIS image as an example, the fitting method based on polynomial function is developed in this paper, and the equalization processing of image is realized. The brightness change of image after processing is uniform, and the internal wave of each part of the whole image can be clearly observed. There is no need for image enhancement one by one.
【作者单位】：中国海洋大学环境科学与工程学院;国家海洋局第一海洋研究所;
【基金】：国家自然科学基金项目(60702077)资助
【分类号】：TP751;P182.52

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