Spectral Reflectance Processing via Local Wavelength-Direction Correlations

Guanglang Xu, Maria Gritsevich, Jouni Peltoniemi, Antti Penttilä, Olli Wilkman, Olli Ihalainen, Karri Muinonen

Research output: Contribution to journalArticleScientificpeer-review

1 Citation (Scopus)


The spectral bidirectional reflectance distribution function (BRDF) maps incident radiation of a surface to its outgoing counterpart at different wavelengths. This function plays a fundamental role in characterizing the various types of earth surfaces. Due to its high dimensionality, the measurements, analysis, and simulation of spectral BRDF are challenging. In this letter, we introduce a new method for processing spectral reflectance using the so-called data-adjacency, i.e., the correlation between adjacent wavelengths and viewing directions. The results show that the benefits of efficient representation, noise reduction, and analysis capability can all be integrated to the data.
Original languageEnglish
Article number8845665
Pages (from-to)948-952
Number of pages5
JournalIEEE Geoscience and Remote Sensing Letters
Issue number6
Publication statusPublished - Jun 2020
MoE publication typeA1 Journal article-refereed


  • Remote sensing
  • spectroradiometers
  • wavelet transforms


Dive into the research topics of 'Spectral Reflectance Processing via Local Wavelength-Direction Correlations'. Together they form a unique fingerprint.

Cite this