Delineation of Individual Tree Crowns Using High Spatial Resolution Multispectral WorldView-3 Satellite Imagery

Simple item page
dc.contributor.authorTong, Fei
dc.contributor.authorTong, Hengjian
dc.contributor.authorMishra, Rakesh
dc.contributor.authorZhang, Yun
dc.date.accessioned2023-06-07T12:51:54Z
dc.date.available2023-06-07T12:51:54Z
dc.date.issued2021
dc.description.abstractDelineation of individual tree crowns can provide valuable information for sustainable forest management and environmental protection. However, it is hard to find a reliable tree crown delineation method that can continually generate expected results in high spatial resolution multispectral satellite images, because most of the existing methods need user-assigned parameters that greatly affect the quality of the delineation results. In this article, we propose a method based on the marker-controlled watershed segmentation to delineate individual tree crowns using high spatial resolution multispectral WorldView-3 satellite imagery. A gradient binarization process is proposed to accurately locate tree crown borders. The threshold for the binarization is determined by a supervised searching process. Markers used in marker-controlled watershed segmentation are spatial local maxima detected from the information provided by tree crown borders. Moreover, the definition of spatial local maxima from the literature is improved to eliminate false treetops. To validate the performance of the proposed delineation method, delineation results are compared with those obtained from the spectral angle segmentation (SAS) method that has been proposed in literature because the quality of delineation results generated by SAS does not rely on user-assigned parameters. The experiment results in two test images demonstrate that the proposed method outperforms SAS in terms of both delineation accuracy and visual quality of the delineation map. Moreover, it is proved that the modified spatial local maxima are more reliable for detecting treetops.
dc.description.copyrightThis work is licensed under a Creative Commons Attribution 4.0 License. For more information, see https://creativecommons.org/licenses/by/4.0/
dc.identifier.doi10.1109/jstars.2021.3100748
dc.identifier.issn1939-1404
dc.identifier.issn2151-1535
dc.identifier.urihttps://unbscholar.lib.unb.ca/handle/1882/29873
dc.language.isoen
dc.publisherInstitute of Electrical and Electronics Engineers
dc.relation.hasversiondoi.org/10.1109/JSTARS.2021.3100748
dc.relation.ispartofIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
dc.rightshttp://purl.org/coar/access_right/c_abf2
dc.subject.disciplineGeodesy and Geomatics Engineering
dc.titleDelineation of Individual Tree Crowns Using High Spatial Resolution Multispectral WorldView-3 Satellite Imagery
dc.typejournal-article
oaire.citation.endPage7761
oaire.citation.startPage7751
oaire.citation.titleIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
oaire.citation.volume14
oaire.license.conditionhttp://creativecommons.org/licenses/by/4.0/
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Delineation_of_Individual_Tree_Crowns_Using_High_Spatial_Resolution_Multispectral_WorldView-3_Satellite_Imagery.pdf
Size:
5.92 MB
Format:
Adobe Portable Document Format
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.13 KB
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections

Journal Articles