4SM illustrations


Investigate the image	Prepare a mask	Extract Calibration data	Optical calibration	The 4SM commandline
Equalize a mosaic	Deglinting	Smart Smoothing	Normalization of the data	Sea truth Regression
Water Column Correction	Spectral Bottom Signature	Bottom typing Seychelles Florida Princess Cays Heron Island	Computed Depth	Contour Map 3D diagram

Deal or NoDeal?

It shall be seen that an acceptable calibration which yields acceptable results
- is a fuzzy concept in respect of the many parameters involved
- even though we are using a simplified radiative transfer model
What is important is NOT
- that a physically exact calibration has been achieved
- leave that for the big boys at NRL
Rather what is important to US
- is that a coherent set of calibration parameters be assembled
- so that an acceptable and useful result be produced : DTM and bottom type classification
- using only the image
4SM offers an integrated set of ergonomic tools to achieve that
- within a short time frame