Abstract: This paper further explores bathymetric extraction techniques using overlapping orthoimages in shallow water areas through two-medium ray refraction and multispectral information inversion. In texture-rich areas, a ray refraction method using overlapping orthoimages is developed to calculate the depth information of the underwater features. In texture-less areas, the commonly-used multispectral inversion techniques are applied. The depth information from the ray refraction method acts as the references for the multispectral inversion techniques...
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