A wavelet-enhanced inversion method for water quality retrieval from high spectral resolution data for complex waters

  • Ampe, Eva
  • Batelaan, Okke
  • Raymaekers, Dries
  • Knaeps, Els
  • Hestir, Erin E.L.
  • Jansen, Maarten
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Publication date
January 2015
Publisher
Institute of Electrical and Electronics Engineers (IEEE)
ISSN
0196-2892

Abstract

Optical remote sensing in complex waters is challenging because the optically active constituents may vary independently and have a combined and interacting influence on the remote sensing signal. Additionally, the remote sensing signal is influenced by noise and spectral contamination by confounding factors, resulting in ill-posedness and ill-conditionedness in the inversion of the model. There is a need for inversion methods that are less sensitive to these changing or shifting spectral features. We propose WaveIN, a wavelet-enhanced inversion method, specifically designed for complex waters. It integrates wavelet-transformed high-spectral resolution reflectance spectra in a multiscale analysis tool. Wavelets are less sensitive to a bias ...

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