Extraction of tree crowns damaged by Dendrolimus tabulaeformis Tsai et Liu via spectral-spatial classification using UAV-based hyperspectral images
Abstract Background Tree crown extraction is an important research topic in forest resource monitoring. In particular, it is a prerequisite for disease detection and mapping the degree of damage caused by forest pests. Unmanned aerial vehicle (UAV)-based hyperspectral imaging is effective for survey...
Main Authors: | , , |
---|---|
Format: | Article |
Language: | English |
Published: |
BMC
2020-10-01
|
Series: | Plant Methods |
Subjects: | |
Online Access: | http://link.springer.com/article/10.1186/s13007-020-00678-2 |
id |
doaj-bcea6d2e6d8f410f8e879a3f8e566f7f |
---|---|
record_format |
Article |
spelling |
doaj-bcea6d2e6d8f410f8e879a3f8e566f7f2020-11-25T03:42:10ZengBMCPlant Methods1746-48112020-10-0116111910.1186/s13007-020-00678-2Extraction of tree crowns damaged by Dendrolimus tabulaeformis Tsai et Liu via spectral-spatial classification using UAV-based hyperspectral imagesNing Zhang0Yueting Wang1Xiaoli Zhang2Beijing Key Laboratory of Precision Forestry, Beijing Forestry UniversityBeijing Key Laboratory of Precision Forestry, Beijing Forestry UniversityBeijing Key Laboratory of Precision Forestry, Beijing Forestry UniversityAbstract Background Tree crown extraction is an important research topic in forest resource monitoring. In particular, it is a prerequisite for disease detection and mapping the degree of damage caused by forest pests. Unmanned aerial vehicle (UAV)-based hyperspectral imaging is effective for surveying and monitoring forest health. This article proposes a spectral-spatial classification framework that uses UAV-based hyperspectral images and combines a support vector machine (SVM) with an edge-preserving filter (EPF) for completing classification more finely to automatically extract tree crowns damaged by Dendrolimus tabulaeformis Tsai et Liu (D. tabulaeformis) in Jianping county of Liaoning province, China. Results Experiments were conducted using UAV-based hyperspectral images, and the accuracy of the results was assessed using the mean structure similarity index (MSSIM), the overall accuracy (OA), kappa coefficient, and classification accuracy of damaged Pinus tabulaeformis. Optimized results showed that the OA of the spectral-spatial classification method can reach 93.17%, and the extraction accuracy of damaged tree crowns is 7.50–9.74% higher than that achieved using the traditional SVM classifier. Conclusion This study is one of only a few in which a UAV-based hyperspectral image has been used to extract tree crowns damaged by D. tabulaeformis. Moreover, the proposed classification method can effectively extract damaged tree crowns; hence, it can serve as a reference for future studies on both forest health monitoring and larger-scale forest pest and disease assessment.http://link.springer.com/article/10.1186/s13007-020-00678-2UAV-based hyperspectral imageSpectral-spatial classificationSVMEPFDamaged tree crown extraction |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Ning Zhang Yueting Wang Xiaoli Zhang |
spellingShingle |
Ning Zhang Yueting Wang Xiaoli Zhang Extraction of tree crowns damaged by Dendrolimus tabulaeformis Tsai et Liu via spectral-spatial classification using UAV-based hyperspectral images Plant Methods UAV-based hyperspectral image Spectral-spatial classification SVM EPF Damaged tree crown extraction |
author_facet |
Ning Zhang Yueting Wang Xiaoli Zhang |
author_sort |
Ning Zhang |
title |
Extraction of tree crowns damaged by Dendrolimus tabulaeformis Tsai et Liu via spectral-spatial classification using UAV-based hyperspectral images |
title_short |
Extraction of tree crowns damaged by Dendrolimus tabulaeformis Tsai et Liu via spectral-spatial classification using UAV-based hyperspectral images |
title_full |
Extraction of tree crowns damaged by Dendrolimus tabulaeformis Tsai et Liu via spectral-spatial classification using UAV-based hyperspectral images |
title_fullStr |
Extraction of tree crowns damaged by Dendrolimus tabulaeformis Tsai et Liu via spectral-spatial classification using UAV-based hyperspectral images |
title_full_unstemmed |
Extraction of tree crowns damaged by Dendrolimus tabulaeformis Tsai et Liu via spectral-spatial classification using UAV-based hyperspectral images |
title_sort |
extraction of tree crowns damaged by dendrolimus tabulaeformis tsai et liu via spectral-spatial classification using uav-based hyperspectral images |
publisher |
BMC |
series |
Plant Methods |
issn |
1746-4811 |
publishDate |
2020-10-01 |
description |
Abstract Background Tree crown extraction is an important research topic in forest resource monitoring. In particular, it is a prerequisite for disease detection and mapping the degree of damage caused by forest pests. Unmanned aerial vehicle (UAV)-based hyperspectral imaging is effective for surveying and monitoring forest health. This article proposes a spectral-spatial classification framework that uses UAV-based hyperspectral images and combines a support vector machine (SVM) with an edge-preserving filter (EPF) for completing classification more finely to automatically extract tree crowns damaged by Dendrolimus tabulaeformis Tsai et Liu (D. tabulaeformis) in Jianping county of Liaoning province, China. Results Experiments were conducted using UAV-based hyperspectral images, and the accuracy of the results was assessed using the mean structure similarity index (MSSIM), the overall accuracy (OA), kappa coefficient, and classification accuracy of damaged Pinus tabulaeformis. Optimized results showed that the OA of the spectral-spatial classification method can reach 93.17%, and the extraction accuracy of damaged tree crowns is 7.50–9.74% higher than that achieved using the traditional SVM classifier. Conclusion This study is one of only a few in which a UAV-based hyperspectral image has been used to extract tree crowns damaged by D. tabulaeformis. Moreover, the proposed classification method can effectively extract damaged tree crowns; hence, it can serve as a reference for future studies on both forest health monitoring and larger-scale forest pest and disease assessment. |
topic |
UAV-based hyperspectral image Spectral-spatial classification SVM EPF Damaged tree crown extraction |
url |
http://link.springer.com/article/10.1186/s13007-020-00678-2 |
work_keys_str_mv |
AT ningzhang extractionoftreecrownsdamagedbydendrolimustabulaeformistsaietliuviaspectralspatialclassificationusinguavbasedhyperspectralimages AT yuetingwang extractionoftreecrownsdamagedbydendrolimustabulaeformistsaietliuviaspectralspatialclassificationusinguavbasedhyperspectralimages AT xiaolizhang extractionoftreecrownsdamagedbydendrolimustabulaeformistsaietliuviaspectralspatialclassificationusinguavbasedhyperspectralimages |
_version_ |
1724526776990826496 |