Philpot W D
Appl Opt. 1989 Apr 15;28(8):1569-78. doi: 10.1364/AO.28.001569.
Bathymetric mapping will be most straightforward where water quality and atmospheric conditions are invariant over the scene. Under these conditions, both depth and an effective attenuation coefficient of the water over several different bottom types may be retrieved from passive, multispectral imagery. As scenes become more complex-with changing water type and variable atmospheric conditions-it is probable that a strictly spectral analysis will no longer be sufficient to extract depth from multispectral imagery. In these cases an independent source of information will be required. The most likely sources for such information are spatial and temporal variations in image data.
在水质和大气条件在整个场景中保持不变的情况下，测深绘图将最为直接。在这些条件下，可以从被动多光谱图像中获取几种不同底部类型上方水体的深度和有效衰减系数。随着场景变得更加复杂——水体类型不断变化且大气条件多变——仅靠严格的光谱分析可能不足以从多光谱图像中提取深度信息。在这些情况下，就需要独立的信息源。此类信息最有可能的来源是图像数据中的空间和时间变化。
