The Influence of Cross-Section Thickness on Diameter at Breast Height Estimation from Point Cloud
Circle-fitting methods are commonly used to estimate diameter at breast height (DBH) of trees from horizontal cross-section of point clouds. In this paper, we addressed the problem of cross-section thickness optimization regarding DBH estimation bias and accuracy. DBH of 121 European beeches (<i&...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2020-08-01
|
| Series: | ISPRS International Journal of Geo-Information |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2220-9964/9/9/495 |
| _version_ | 1797556486078988288 |
|---|---|
| author | Milan Koreň Milan Hunčaga Juliana Chudá Martin Mokroš Peter Surový |
| author_facet | Milan Koreň Milan Hunčaga Juliana Chudá Martin Mokroš Peter Surový |
| author_sort | Milan Koreň |
| collection | DOAJ |
| description | Circle-fitting methods are commonly used to estimate diameter at breast height (DBH) of trees from horizontal cross-section of point clouds. In this paper, we addressed the problem of cross-section thickness optimization regarding DBH estimation bias and accuracy. DBH of 121 European beeches (<i>Fagus sylvatica</i> L.) and 43 Sessile oaks (Quercus petraea (Matt.) Liebl.) was estimated from cross-sections with thicknesses ranging from 1 to 100 cm. The impact of cross-section thickness on the bias, standard error, and accuracy of DBH estimation was statistically significant. However, the biases, standard errors, and accuracies of DBH estimation were not significantly different among 1–10-cm cross-sections, except for oak DBH estimation accuracy from an 8-cm cross-section. DBH estimations from 10–100-cm cross-sections were considerably different. These results provide insight to the influence of cross-section thickness on DBH estimation by circle-fitting methods, which is beneficial for point cloud data acquisition planning and processing. The optimal setting of cross-section thickness facilitates point cloud processing and DBH estimation by circle-fitting algorithms. |
| first_indexed | 2024-03-10T17:03:34Z |
| format | Article |
| id | doaj.art-0dd4510f0dbd4a3a813895f9684b6dd7 |
| institution | Directory Open Access Journal |
| issn | 2220-9964 |
| language | English |
| last_indexed | 2024-03-10T17:03:34Z |
| publishDate | 2020-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | ISPRS International Journal of Geo-Information |
| spelling | doaj.art-0dd4510f0dbd4a3a813895f9684b6dd72023-11-20T10:53:14ZengMDPI AGISPRS International Journal of Geo-Information2220-99642020-08-019949510.3390/ijgi9090495The Influence of Cross-Section Thickness on Diameter at Breast Height Estimation from Point CloudMilan Koreň0Milan Hunčaga1Juliana Chudá2Martin Mokroš3Peter Surový4Department of Forest Resources Planning and Informatics, Faculty of Forestry, Technical University in Zvolen, T. G. Masaryka 24, 960 01 Zvolen, SlovakiaDepartment of Forest Resources Planning and Informatics, Faculty of Forestry, Technical University in Zvolen, T. G. Masaryka 24, 960 01 Zvolen, SlovakiaDepartment of Forest Resources Planning and Informatics, Faculty of Forestry, Technical University in Zvolen, T. G. Masaryka 24, 960 01 Zvolen, SlovakiaFaculty of Forestry and Wood Sciences, Czech University of Life Sciences Prague, Kamycká 129, 16500 Prague, Czech RepublicFaculty of Forestry and Wood Sciences, Czech University of Life Sciences Prague, Kamycká 129, 16500 Prague, Czech RepublicCircle-fitting methods are commonly used to estimate diameter at breast height (DBH) of trees from horizontal cross-section of point clouds. In this paper, we addressed the problem of cross-section thickness optimization regarding DBH estimation bias and accuracy. DBH of 121 European beeches (<i>Fagus sylvatica</i> L.) and 43 Sessile oaks (Quercus petraea (Matt.) Liebl.) was estimated from cross-sections with thicknesses ranging from 1 to 100 cm. The impact of cross-section thickness on the bias, standard error, and accuracy of DBH estimation was statistically significant. However, the biases, standard errors, and accuracies of DBH estimation were not significantly different among 1–10-cm cross-sections, except for oak DBH estimation accuracy from an 8-cm cross-section. DBH estimations from 10–100-cm cross-sections were considerably different. These results provide insight to the influence of cross-section thickness on DBH estimation by circle-fitting methods, which is beneficial for point cloud data acquisition planning and processing. The optimal setting of cross-section thickness facilitates point cloud processing and DBH estimation by circle-fitting algorithms.https://www.mdpi.com/2220-9964/9/9/495terrestrial laser scanningDBHcircle fittingforest inventoryLiDAR |
| spellingShingle | Milan Koreň Milan Hunčaga Juliana Chudá Martin Mokroš Peter Surový The Influence of Cross-Section Thickness on Diameter at Breast Height Estimation from Point Cloud ISPRS International Journal of Geo-Information terrestrial laser scanning DBH circle fitting forest inventory LiDAR |
| title | The Influence of Cross-Section Thickness on Diameter at Breast Height Estimation from Point Cloud |
| title_full | The Influence of Cross-Section Thickness on Diameter at Breast Height Estimation from Point Cloud |
| title_fullStr | The Influence of Cross-Section Thickness on Diameter at Breast Height Estimation from Point Cloud |
| title_full_unstemmed | The Influence of Cross-Section Thickness on Diameter at Breast Height Estimation from Point Cloud |
| title_short | The Influence of Cross-Section Thickness on Diameter at Breast Height Estimation from Point Cloud |
| title_sort | influence of cross section thickness on diameter at breast height estimation from point cloud |
| topic | terrestrial laser scanning DBH circle fitting forest inventory LiDAR |
| url | https://www.mdpi.com/2220-9964/9/9/495 |
| work_keys_str_mv | AT milankoren theinfluenceofcrosssectionthicknessondiameteratbreastheightestimationfrompointcloud AT milanhuncaga theinfluenceofcrosssectionthicknessondiameteratbreastheightestimationfrompointcloud AT julianachuda theinfluenceofcrosssectionthicknessondiameteratbreastheightestimationfrompointcloud AT martinmokros theinfluenceofcrosssectionthicknessondiameteratbreastheightestimationfrompointcloud AT petersurovy theinfluenceofcrosssectionthicknessondiameteratbreastheightestimationfrompointcloud AT milankoren influenceofcrosssectionthicknessondiameteratbreastheightestimationfrompointcloud AT milanhuncaga influenceofcrosssectionthicknessondiameteratbreastheightestimationfrompointcloud AT julianachuda influenceofcrosssectionthicknessondiameteratbreastheightestimationfrompointcloud AT martinmokros influenceofcrosssectionthicknessondiameteratbreastheightestimationfrompointcloud AT petersurovy influenceofcrosssectionthicknessondiameteratbreastheightestimationfrompointcloud |