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Remote Sensing Classification of Environmental Indicators

  • Jun Yu
  • , Bo Ranneby

    Publication: Chapter in Book/Report/Conference proceedingConference paper in proceedings

    Abstract

    In Sweden 15 national environmental quality objectives have been defined together with specific environmental indicators to be analyzed repeatedly to follow relevant environmental trends. Remote sensing offers potential to assess wall-to-wall changes in the ecosystems. With the environmental indicators related to forestry as background the forest are divided into different classes. Remote sensing classification of this type of objects is complicated and reported classification rates are usually poor. To overcome most of the problems with traditional methods we use a new approach, where multispectral and change detection techniques are combined. Measures for quality assessment of the classified image are developed and applied. Furthermore, the importance of unbiased and high-precision estimates of the confusion matrix is emphasized. Even if the classified image gives incorrect proportions of the different classes unbiased area estimates can be derived from the confusion matrix
    Original languageEnglish
    Title of host publication30th International Symposium on Remote Sensing of Environment - Information for Risk Management and Sustainable Development
    PublisherISRSE
    Number of pages4
    Publication statusPublished - 2003

    Publication series

    SeriesProceedings of ISRSE
    VolumeHonolulu 2003
    ISSN9998-0421

    Keywords

    • Remote sensing
    • classification
    • information theory
    • k-NN
    • probabilistic classifier
    • quality assessment
    • wavelet transform

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