Articles | Volume 4, issue 1
Geosci. Instrum. Method. Data Syst., 4, 23–34, 2015
https://doi.org/10.5194/gi-4-23-2015
Geosci. Instrum. Method. Data Syst., 4, 23–34, 2015
https://doi.org/10.5194/gi-4-23-2015

Research article 11 Feb 2015

Research article | 11 Feb 2015

Image georectification and feature tracking toolbox: ImGRAFT

A. Messerli and A. Grinsted

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Short summary
The use of time-lapse cameras is becoming an ever more popular method of observing changes in the natural environment. This study provides an overview of the newly developed Image GeoRectification And Feature Tracking toolbox (ImGRAFT). The paper outlines the main function of the toolbox and describes each of the key processes needed to transform a pair of terrestrial time-lapse images into a velocity field. The tool is presented using a case study of glacier surface motion at Engabreen, Norway.