Published August 6, 2018 | Version 0
Dataset Open

SPUSPO: Spatially Partitioned Unsupervised Segmentation Parameter Optimization for Efficiently Segmenting Large Heterogeneous Areas

  • 1. Department of Geoscience, Environment & Society, Université Libre De Bruxelles (ULB), 1050 Bruxelles, Belgium
  • 2. Natural Resources and Ecosystem Services Area, Institute for Global Environmental Strategies, 2108-11 Kamiyamaguchi, Hayama, Kanagawa 240-0115, Japan

Description

This dataset contains several data, results and processing material from the application of GEOBIA-based, Spatially Partitioned Segmentation Parameter Optimization (SPUSPO) in the city of Ouagadougou. In detail in contains:

  • A Land Use - Land Cover map of Ouagadougou derived through SPUSPO. The classifier used was Extreme Gradient Boosting (XGBoost). 

    Labels :

    2 : Artificial Ground Surface

    0 : Building

    5 : Low Vegetation

    4 : Tree

    1 : Swimming Pool

    3 : Bare Ground

    7 : Shadow

    6 : Inland Water

 

  • The training and test data used in  the study (SPUSPO and benchmark approach). 

The data are given in a csv format.

  • The Jupyter notebook code which involves Python and GRASS GIS to automatize and efficiently perform SPUSPO in a large dataset.

Python code calling GRASS GIS functions for automatizing the procedure.

 

  • The segmentation layers coming from SPUSPO and the benchmark approaches (in raster formats due to data limitations).

Segmentation rasters for each approach.

  • The R code for optimization of XGBoost as well as feature selection with VSURF and classification of the whole dataset.

 

  • Segmentation evaluation metrics.

A csv file with the data sued to compute the Area Fit Index for each approach.

  • Morphological zones of Ouagadougou as created by Grippa et al. 2017 a shp format.

Files

Jupyter_Code.zip

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