IGSNRR OpenIR
Mapping Panax Notoginseng Plantations by Using an Integrated Pixel- and Object-Based (IPOB) Approach and ZY-3 Imagery
Yang, Zhiqi1,2; Dong, Jinwei1; Kou, Weili3; Qin, Yuanwei4; Xiao, Xiangming4
2021-06-01
Source PublicationREMOTE SENSING
Volume13Issue:11Pages:22
Corresponding AuthorDong, Jinwei(dongjw@igsnrr.ac.cn)
AbstractPlantations of Panax notoginseng (PN), traditional herbal medicine for the prevention and treatment of vascular diseases, are expanding rapidly in China, especially in the Yunnan province of China, due to its increasing demands and prices and causing dramatic environmental concerns. However, existing information on its planting area and spatial distribution are limited. Here, we mapped the PN planting area by using a new integrated pixel- and object-based (IPOB) approach, the Random Forest (RF) classifier, and the high-resolution ZiYuan-3 (ZY-3) imagery. We improved the procedures of classification in three aspects: (1) a new spectral index-Normalized Difference PN Index (NDPI)-was proposed, (2) the efficiency and scale of segmentation were optimized by using the Bi-level Scale-sets Model (BSM), and (3) feature variables were selected through an iteration analysis from 99 feature variables (spectral, textural, geometric, and geographic). Compared with the pixel- and the object-based methods, the IPOB has the highest F1 score of 0.98 and also has high robustness in terms of user and producer accuracies (97% and 99%, respectively), following by the object-based method (F1 = 0.94) and the pixel-based method (F1 = 0.93). The high accuracy was expected since the target class has very distinctive spectral and textural characteristics. Although all three approaches showed reasonably high accuracies due to the application of the NDPI and optimized procedures, the result showed the outperformance of the proposed IPOB approach. The framework established in this study expects to apply for regional or national PN surveys extensively. The information on the area and spatial distribution of PN can guide the government on policy making for the planting and exporting of traditional Chinese medicine resources.
KeywordRandom Forest integrated pixel- and object-based (IPOB) approach feature selection segmentation Panax notoginseng
DOI10.3390/rs13112184
WOS KeywordRANDOM FOREST CLASSIFICATION ; LAND-COVER ; LIDAR DATA ; SCALE ; TREE ; SEGMENTATION ; ALGORITHMS ; SELECTION ; ACCURACY ; REGION
Indexed BySCI
Language英语
Funding ProjectKey Research Program of Frontier Sciences[QYZDB-SSWDQC005] ; Chinese Academy of Sciences (CAS)[XDA19040301]
Funding OrganizationKey Research Program of Frontier Sciences ; Chinese Academy of Sciences (CAS)
WOS Research AreaEnvironmental Sciences & Ecology ; Geology ; Remote Sensing ; Imaging Science & Photographic Technology
WOS SubjectEnvironmental Sciences ; Geosciences, Multidisciplinary ; Remote Sensing ; Imaging Science & Photographic Technology
WOS IDWOS:000660609100001
PublisherMDPI
Citation statistics
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/164179
Collection中国科学院地理科学与资源研究所
Corresponding AuthorDong, Jinwei
Affiliation1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Southwest Forestry Univ, Coll Big Data & Intelligence Engn, Kunming 650224, Yunnan, Peoples R China
4.Univ Oklahoma, Dept Microbiol & Plant Biol, Norman, OK 73019 USA
Recommended Citation
GB/T 7714
Yang, Zhiqi,Dong, Jinwei,Kou, Weili,et al. Mapping Panax Notoginseng Plantations by Using an Integrated Pixel- and Object-Based (IPOB) Approach and ZY-3 Imagery[J]. REMOTE SENSING,2021,13(11):22.
APA Yang, Zhiqi,Dong, Jinwei,Kou, Weili,Qin, Yuanwei,&Xiao, Xiangming.(2021).Mapping Panax Notoginseng Plantations by Using an Integrated Pixel- and Object-Based (IPOB) Approach and ZY-3 Imagery.REMOTE SENSING,13(11),22.
MLA Yang, Zhiqi,et al."Mapping Panax Notoginseng Plantations by Using an Integrated Pixel- and Object-Based (IPOB) Approach and ZY-3 Imagery".REMOTE SENSING 13.11(2021):22.
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