基于WorldView-2遥感影像反演浅海水深过程中太阳耀斑的去除方法-海洋预报

基于WorldView-2遥感影像反演浅海水深过程中太阳耀斑的去除方法

单位：国家卫星海洋应用中心, 北京100081

分类号：P715.7

出版年·卷·期（页码）：2015·32·第一期（53-57）

摘要：

基于Hedley 等的方法对WorldView-2 遥感影像反演岛礁水深时的太阳耀斑进行去除, 在技术实现过程中根据WorldView-2 波段设置的特殊性做一定的改进, 将8 波段分为两组, 其中蓝、绿、红波段依据近红外1 波段来去耀斑, 海岸、黄、红边波段依据近红外2 波段来去耀斑, 在具体应用中完整实现该理论方法。结果表明, 去耀斑后无论是对水深反演结果的精度上还是从影像直观视觉上都有提高, 该方法有利于WorldView-2影像处理中耀斑去除的常规化应用。

The method of Hedley et al. was applied in the WorldView-2 remote sensing image inversion reef water depth. Certain improvement was made according to the particularity of WorldView-2 band set in the process of technical implementation, and 8 bands were divided into two groups. For sun-glint removal, the NIR1 band was used to estimate water surface properties in the blue, green, and red bands, and the NIR2 band similarly was used for the coastal, yellow, and red-edge bands. The theory method was implemented completely at some specific applications. Result shows that there are a substantial visual improvement and the improvement of water depth retrieval precision. The practical approach described here will hopefully expedite the routine adoption.

参考文献：

[1] Fraser R S, Mattoo S, Yeh E, et al. Algorithm for atmospheric and glint corrections of satellite measurements of ocean pigment[J]. Journal of Geophysical Research,1997, 102(D14): 17107-17118.
[2] Wang M, Bailey S W. Correction of sun glint contamination on the SeaWiFS ocean and atmosphere products[J]. Applied Optics, 2001, 40(27): 4790-4798.
[3] Hochberg E J, Andrefouet S, Tyler M R. Sea surface correction of high spatial resolution Ikonos images to improve bottom mapping in near-shore environments[J]. IEEE Transactions on Geoscience and Remote Sensing, 2003, 41(7): 1724-1729.
[4] Hedley J D, Harborne A R, Mumby P J. Technical note: Simple and robust removal of sun glint for mapping shallow-water benthos[J]. International Journal of Remote Sensing, 2005, 26(10): 2107-2112.
[5] MobleyCD. Light and water: Radiative transfer in natural waters[M]. San Diego: Academic Press, 1994.
[6] Kerr J M. WorldView-02 offers new capabilities for the monitoring of threatened coral reefs. http://www.watercolumncorrection.com/documents /Kerr_2010_Bathymetry_from_WV2. pdf.

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