Publicação
Trees of green : constructing panels of tree canopy from aerial imagery
| dc.contributor.author | Miñano-Mañero, Alba | |
| dc.date.accessioned | 2024-11-27T15:06:33Z | |
| dc.date.available | 2024-11-27T15:06:33Z | |
| dc.date.issued | 2024-10 | |
| dc.description.abstract | This paper develops a fully-automated workflow for constructing panels of tree canopy from high-resolution multispectral imagery with limited near-infrared (NIR) training data. The proposed workflow utilizes the tree-pixel detection algorithm developed by Yang, Wu, Praun, and Ma (2009) and Bosch (2020) on a large set of U.S. urban areas but modifies it by creating automatic ground-truth masks through various visual graphics techniques that leverage modern high-resolution NIR data. By matching colors across different imagery periods, the workflow predicts tree presence in older images without NIR data, using the recent images with NIR data. Using a subset of cities that represent the different U.S. climate regions, I quantify the effectiveness of the workflow by implementing the algorithm without pre-processing in the creation of ground-truth masks, without equalizing colors across periods, and using a universal model for all areas. The comparison shows that my workflow is the option that leads to better results in terms of accuracy, recall, and precision. | pt_PT |
| dc.description.version | info:eu-repo/semantics/publishedVersion | pt_PT |
| dc.identifier.citation | Miñano-Mañero, Alba (2024). "Trees of green : constructing panels of tree canopy from aerial imagery". REM Working paper series, nº 0352/2024 | pt_PT |
| dc.identifier.issn | 2184-108X | |
| dc.identifier.uri | http://hdl.handle.net/10400.5/95706 | |
| dc.language.iso | eng | pt_PT |
| dc.peerreviewed | yes | pt_PT |
| dc.publisher | ISEG – REM (Research in Economics and Mathematics) | pt_PT |
| dc.relation.ispartofseries | REM Working paper series;nº 0352/2024 | |
| dc.relation.publisherversion | https://rem.rc.iseg.ulisboa.pt/wps/pdf/REM_WP_0352_2024.pdf | pt_PT |
| dc.subject | aerial imagery | pt_PT |
| dc.subject | tree detection | pt_PT |
| dc.subject | near-infrared light | pt_PT |
| dc.subject | panel data | pt_PT |
| dc.title | Trees of green : constructing panels of tree canopy from aerial imagery | pt_PT |
| dc.type | working paper | |
| dspace.entity.type | Publication | |
| rcaap.rights | openAccess | pt_PT |
| rcaap.type | workingPaper | pt_PT |