Benchmarking of terrestrial laser scanning methods: Test datasets available

FGI’s work on benchmarking of terrestrial laser scanning (TLS) methods for forestry applications progresses as planned, and new test datasets have been released in February 2015. More than 10 international groups have already downloaded the test data and more are encouraged to join. The test data can be obtained from the ftp site of the FGI, after sending a request to xinlian.liang@nls.fi or harri.kaartinen@nls.fi.

The EuroSDR project on international benchmarking of terrestrial laser scanning methods for forestry applications is coordinated by the Centre of Excellence FGI group. The project was launched in 2014 in order to gain understanding on an optimum data processing technique for future automated forest plot inventories. The objective of the project is to evaluate the quality, accuracy and feasibility of automatic, semi-automatic or manual tree extraction methods based on high-density TLS data. The data is collected in a test forest, a southern Boreal Forest in Evo, Finland.

The benchmarking project is targeting on the existing and modified algorithms, and manual measurements from the point cloud data. Meanwhile, the project is also open for all techniques that are in the research phase. National mapping agencies, companies, universities and research organizations are all welcomed to participate in the project and to provide the extracted plotwise parameters. In addition to the final report (in the middle of 2016), joint peer-reviewed journal articles on the statistical comparison results will be prepared. All participants will be invited as co-authors/co-writers in all papers.

The distributed data includes one single-scan and one multi-scan dataset for each of the 24 plots. Read more about the data in the project webpage . The TLS data are exclusively used for this project before the publication of the final project report. After that, the point cloud data will be free of use for non-commercial purposes.

1_MS_isometric

Picture: Multi-scan Terrestrial laser scanning data of a test plot 3D (Picture: Jiri Pyörälä)

More information

Xinlian Liang xinlian.liang(a)nls.fi, Harri Kaartinen harri.kaartinen(a)nls.fi

Project webpage: http://www.eurosdr.net/research/project/project-benchmarking-terrestrial-laser-scanning-forestry-applications

Top cited paper by Dr. Harri Kaartinen

A publication by Dr. Harri Kaartinen and his team is the top cited paper in the Remote Sensing journal in years 2012-2014. The article An International Comparison of Individual Tree Detection and Extraction Using Airborne Laser Scanning is based on the work the project “Tree Extraction” coordinated by CoE-LaSR researchers and organized by EuroSDR (European Spatial data Research) and ISPRS (International Society of Photogrammetry and Remote Sensing). The purpose of the project was to evaluate the quality, accuracy, and feasibility of automatic tree extraction methods, mainly based on laser scanner data.

Taksaattoriklubi-seminar

CoE-LaSR forestry research and activities were presented on 4th November in a seminar ”Laserkeilauksen huippuyksikkö ja moderni metsänarviointi” organised by Taksaattoriklubi in Paikkatietomarkkinat (Seminar in Finnish). According to the visitor feedback, the content of the CoE-LaSR seminar was the most interesting in the Fair. (See the program here).

Sensei – UAV

Sensei, an early unmanned aerial vehicle (UAV) -based laser scanner developed at FGI that has contributed significantly to the emerging mini-UAV laser scanner field, is presented in GEO informatics December issue 8/2013. Read more (page 20).