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Enhanced Algorithms for Estimating Tree Trunk Diameter Using 2D Laser Scanner
Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för datavetenskap.
Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för datavetenskap.
Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för datavetenskap.
Dept. of Forest Resource Management, Swedish University of Agricultural Sciences.
Vise andre og tillknytning
2013 (engelsk)Inngår i: Remote Sensing, ISSN 2072-4292, E-ISSN 2072-4292, Vol. 5, nr 10, s. 4839-4856Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Accurate vehicle localization in forest environments is still an unresolved problem. Global navigation satellite systems (GNSS) have well known limitations in dense forest, and have to be combined with for instance laser based SLAM algorithms to provide satisfying accuracy. Such algorithms typically require accurate detection of trees, and estimation of tree center locations in laser data. Both these operations depend on accurate estimations of tree trunk diameter. Diameter estimations are important also for several other forestry automation and remote sensing applications. This paper evaluates several existing algorithms for diameter estimation using 2D laser scanner data. Enhanced algorithms, compensating for beam width and using multiple scans, were also developed and evaluated. The best existing algorithms overestimated tree trunk diameter by ca. 40%. Our enhanced algorithms, compensating for laser beam width, reduced this error to less than 12%.

sted, utgiver, år, opplag, sider
Basel: MDPI , 2013. Vol. 5, nr 10, s. 4839-4856
Emneord [en]
beam width compensation, multiple laser scans, stem diameter, forestry, accuracy and quality, terrestrial laser scanning, mobile laser scanning
HSV kategori
Forskningsprogram
data- och systemvetenskap
Identifikatorer
URN: urn:nbn:se:umu:diva-81410DOI: 10.3390/rs5104839ISI: 000328614900006OAI: oai:DiVA.org:umu-81410DiVA, id: diva2:655049
Forskningsfinansiär
EU, FP7, Seventh Framework Programme, CROPS GA no 246252Tilgjengelig fra: 2013-10-09 Laget: 2013-10-09 Sist oppdatert: 2018-06-08bibliografisk kontrollert

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Enhanced Algorithms for Estimating Tree Trunk Diameter Using 2D Laser Scanner(1128 kB)488 nedlastinger
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Ringdahl, OlaHohnloser, PeterHellström, Thomas

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