Point Density Variations in Airborne Lidar Point Clouds
In spite of increasing point density and accuracy, airborne lidar point clouds often exhibit point density variations. Some of these density variations indicate issues with point clouds, potentially leading to errors in derived products. To highlight these issues, we provide an overview of point den...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-02-01
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| Series: | Sensors |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1424-8220/23/3/1593 |
| _version_ | 1797623207759446016 |
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| author | Vaclav Petras Anna Petrasova James B. McCarter Helena Mitasova Ross K. Meentemeyer |
| author_facet | Vaclav Petras Anna Petrasova James B. McCarter Helena Mitasova Ross K. Meentemeyer |
| author_sort | Vaclav Petras |
| collection | DOAJ |
| description | In spite of increasing point density and accuracy, airborne lidar point clouds often exhibit point density variations. Some of these density variations indicate issues with point clouds, potentially leading to errors in derived products. To highlight these issues, we provide an overview of point density variations and show examples in six airborne lidar point cloud datasets that we used in our topographic and geospatial modeling research. Using the published literature, we identified sources of point density variations and issues indicated or caused by these variations. Lastly, we discuss the reduction in point density variations using decimations, homogenizations, and their applicability. |
| first_indexed | 2024-03-11T09:25:24Z |
| format | Article |
| id | doaj.art-8b44fa3469464dad92e44e6426c9a95c |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-11T09:25:24Z |
| publishDate | 2023-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-8b44fa3469464dad92e44e6426c9a95c2023-11-16T18:03:21ZengMDPI AGSensors1424-82202023-02-01233159310.3390/s23031593Point Density Variations in Airborne Lidar Point CloudsVaclav Petras0Anna Petrasova1James B. McCarter2Helena Mitasova3Ross K. Meentemeyer4Center for Geospatial Analytics, North Carolina State University, 2800 Faucette Dr., Campus Box 7106, Raleigh, NC 27695, USACenter for Geospatial Analytics, North Carolina State University, 2800 Faucette Dr., Campus Box 7106, Raleigh, NC 27695, USADepartment of Forestry and Environmental Resources, North Carolina State University, 2820 Faucette Dr., Campus Box 8001, Raleigh, NC 27695, USACenter for Geospatial Analytics, North Carolina State University, 2800 Faucette Dr., Campus Box 7106, Raleigh, NC 27695, USACenter for Geospatial Analytics, North Carolina State University, 2800 Faucette Dr., Campus Box 7106, Raleigh, NC 27695, USAIn spite of increasing point density and accuracy, airborne lidar point clouds often exhibit point density variations. Some of these density variations indicate issues with point clouds, potentially leading to errors in derived products. To highlight these issues, we provide an overview of point density variations and show examples in six airborne lidar point cloud datasets that we used in our topographic and geospatial modeling research. Using the published literature, we identified sources of point density variations and issues indicated or caused by these variations. Lastly, we discuss the reduction in point density variations using decimations, homogenizations, and their applicability.https://www.mdpi.com/1424-8220/23/3/1593airborne lidarlaser scanningpoint density patternnonuniform point distributiongeospatial mappingremote sensing |
| spellingShingle | Vaclav Petras Anna Petrasova James B. McCarter Helena Mitasova Ross K. Meentemeyer Point Density Variations in Airborne Lidar Point Clouds Sensors airborne lidar laser scanning point density pattern nonuniform point distribution geospatial mapping remote sensing |
| title | Point Density Variations in Airborne Lidar Point Clouds |
| title_full | Point Density Variations in Airborne Lidar Point Clouds |
| title_fullStr | Point Density Variations in Airborne Lidar Point Clouds |
| title_full_unstemmed | Point Density Variations in Airborne Lidar Point Clouds |
| title_short | Point Density Variations in Airborne Lidar Point Clouds |
| title_sort | point density variations in airborne lidar point clouds |
| topic | airborne lidar laser scanning point density pattern nonuniform point distribution geospatial mapping remote sensing |
| url | https://www.mdpi.com/1424-8220/23/3/1593 |
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