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dtwSat (version 1.0.0)

Time-Weighted Dynamic Time Warping for Satellite Image Time Series Analysis

Description

Provides a robust approach to land use mapping using multi-dimensional (multi-band) satellite image time series. By leveraging the Time-Weighted Dynamic Time Warping (TWDTW) distance metric in tandem with a 1 Nearest-Neighbor (1-NN) Classifier, this package offers functions to produce land use maps based on distinct seasonality patterns, commonly observed in the phenological cycles of vegetation. The approach is described in Maus et al. (2016) and Maus et al. (2019) . A primary advantage of TWDTW is its capability to handle irregularly sampled and noisy time series, while also requiring minimal training sets. The package includes tools for training the 1-NN-TWDTW model, visualizing temporal patterns, producing land use maps, and visualizing the results.

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Install

install.packages('dtwSat')

Monthly Downloads

108

Version

1.0.0

License

GPL (>= 3)

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Maintainer

Victor Maus

Last Published

September 22nd, 2023

Functions in dtwSat (1.0.0)

twdtw_knn1

Train a KNN-1 TWDTW model with optional GAM resampling
plot.twdtw_knn1

Plot Patterns from twdtw-knn1 model
prepare_time_series

Prepare a Time Series Tibble from a 2D stars Object with Bands and Time Attributes
get_time_series_freq

Compute the Most Common Sampling Frequency across all observations
pretty_arguments

Print Pretty Arguments
predict.twdtw_knn1

Predict using the twdtw_knn1 model
print.twdtw_knn1

Print method for objects of class twdtw_knn1
shift_dates

Shift Dates to Start on a Specified Origin Year