FGI releases hyperspectral Terrestrial Laser Scanning dataset as open data

Finnish Geospatial Research Institute (FGI) at the National Land Survey of Finland has released a hyperspectral Terrestrial Laser Scanning (TLS) dataset as open data. Each point in the laser scanning point cloud contains colour information from several different wavelengths. Ordinary laser scanners only contain colour information from one wavelength.

Dataset available via Etsin

The dataset is available via the Etsin research data finding service provided by the Finnish Ministry of Education and Culture (http://urn.fi/urn:nbn:fi:csc-ida-4x201604052015015324658s). Datasets are provided in .laz format and published under the Creative Commons Attribution 4.0 International License (CC-BY-40).

Unique data

The laser scanning point cloud dataset consists of 30 individual scans collected as a time series covering a 26 hour time frame. The data was collected in September 2013 using FGI's hyperspectral laser scanner (FGI HSL), which has been developed and built at the FGI. Each point in the laser scanning point cloud carries information about its spatial location and intensities of seven separate wavelength channels. Currently, this dataset is the only one of its kind.

Research scientists make use of the data

The dataset is primarily useful for other researchers who are interested in point cloud data. The datasets are provided in .laz format, which can be viewed by using freely available software (such as CloudCompare: http://cloudcompare.org). The data can be used to develop classification algorithms or as a teaching aid on laser scanning courses.

The Academy of Finland encourages open access to research data

The data was collected in several research projects financed by the Academy of Finland, which encourages making scientific research data freely available. Making the data freely available was also done to give more visibility to hyperspectral laser scanning data and to promote the development of multispectral laser scanners and the tools needed to analyse the data from such scanners, because hyperspectral laser scanners are still new and not yet in general use.

Additional information

Queries about the data:
Senior Research Scientist Eetu Puttonen, firstname.lastname@nls.fi, phone +358 29 531 4868,
ORCID ID: 0000-0003-0985-4443 (http://orcid.org/)

Queries about the instrumentation:
Research Scientist Teemu Hakala, firstname.lastname@nls.fi, phone +358 29 531 4710
Research Professor Sanna Kaasalainen, firstname.lastname@nls.fi, phone +358 50 369 6806