A Novel Impervious Surface Extraction Method Based on Automatically Generating Training Samples From Multisource Remote Sensing Products: A Case Study of Wuhan City, China
Impervious surfaces caused by rapid urbanization affect the environment and increase the disaster risk. Currently, most articles have extracted impervious surfaces by manual participation for training samples with medium-and-high spatial resolution remote sensing images. Therefore, it is necessary t...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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IEEE
2022-01-01
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| Series: | IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/9854083/ |
| _version_ | 1818494381304315904 |
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| author | Yingbing Liu Yuqin Wu Zeqiang Chen Min Huang Wenying Du Nengcheng Chen Changjiang Xiao |
| author_facet | Yingbing Liu Yuqin Wu Zeqiang Chen Min Huang Wenying Du Nengcheng Chen Changjiang Xiao |
| author_sort | Yingbing Liu |
| collection | DOAJ |
| description | Impervious surfaces caused by rapid urbanization affect the environment and increase the disaster risk. Currently, most articles have extracted impervious surfaces by manual participation for training samples with medium-and-high spatial resolution remote sensing images. Therefore, it is necessary to develop a new method for improving the efficiency of training sample acquisition and the accuracy of impervious surface extraction. In this article, a novel impervious surface extraction method is proposed based on automatically generating training samples from multisource remote sensing products. First, the preliminary sample area was constructed through the overlay analysis of the classification consistency area of three remote sensing products and homogeneous area detection based on Sentinel-2 images. Second, four spectral indices and digital surface model (DSM) elevation data were used for sample selection, and the pixels were further purified by variance purification calculation. Finally, by sample migration and random forest model training, impervious surfaces were extracted for other years with limited data. Wuhan city in China was selected as the study area due to a large number of interior objects for impervious surfaces. Sentinel-2 images from 2018 to 2020, three 30 m-resolution products, and DSM data in 2018 were used. The proposed method's extraction accuracies of impervious surfaces for Wuhan in 2018, 2019, and 2020 are 94.02%, 94.45%, and 93.87%, respectively. Additionally, with the resolution improved up to 10 m, the method is more conducive to distinguishing the boundary between impervious surfaces and pervious surfaces. |
| first_indexed | 2024-12-10T18:05:24Z |
| format | Article |
| id | doaj.art-e288d5264e724ad0a363f191c50eb10e |
| institution | Directory Open Access Journal |
| issn | 2151-1535 |
| language | English |
| last_indexed | 2024-12-10T18:05:24Z |
| publishDate | 2022-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing |
| spelling | doaj.art-e288d5264e724ad0a363f191c50eb10e2022-12-22T01:38:37ZengIEEEIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing2151-15352022-01-01156766678010.1109/JSTARS.2022.31977609854083A Novel Impervious Surface Extraction Method Based on Automatically Generating Training Samples From Multisource Remote Sensing Products: A Case Study of Wuhan City, ChinaYingbing Liu0Yuqin Wu1Zeqiang Chen2Min Huang3https://orcid.org/0000-0002-2107-9227Wenying Du4Nengcheng Chen5https://orcid.org/0000-0002-3521-9972Changjiang Xiao6https://orcid.org/0000-0001-9900-8325School of Computer Science and Technology, Hainan University, Haikou, ChinaZhongnan Engineering Corporation Limited, Power China, Changsha, ChinaNational Engineering Research Center for Geographic Information System, China University of Geosciences, Wuhan, ChinaSchool of Geography and Environment, Jiangxi Normal University, Nanchang, ChinaNational Engineering Research Center for Geographic Information System, China University of Geosciences, Wuhan, ChinaNational Engineering Research Center for Geographic Information System, China University of Geosciences, Wuhan, ChinaCollege of Surveying and Geo-Informatics, Tongji University, Shanghai, ChinaImpervious surfaces caused by rapid urbanization affect the environment and increase the disaster risk. Currently, most articles have extracted impervious surfaces by manual participation for training samples with medium-and-high spatial resolution remote sensing images. Therefore, it is necessary to develop a new method for improving the efficiency of training sample acquisition and the accuracy of impervious surface extraction. In this article, a novel impervious surface extraction method is proposed based on automatically generating training samples from multisource remote sensing products. First, the preliminary sample area was constructed through the overlay analysis of the classification consistency area of three remote sensing products and homogeneous area detection based on Sentinel-2 images. Second, four spectral indices and digital surface model (DSM) elevation data were used for sample selection, and the pixels were further purified by variance purification calculation. Finally, by sample migration and random forest model training, impervious surfaces were extracted for other years with limited data. Wuhan city in China was selected as the study area due to a large number of interior objects for impervious surfaces. Sentinel-2 images from 2018 to 2020, three 30 m-resolution products, and DSM data in 2018 were used. The proposed method's extraction accuracies of impervious surfaces for Wuhan in 2018, 2019, and 2020 are 94.02%, 94.45%, and 93.87%, respectively. Additionally, with the resolution improved up to 10 m, the method is more conducive to distinguishing the boundary between impervious surfaces and pervious surfaces.https://ieeexplore.ieee.org/document/9854083/Automatically generating training samplesimpervious surface extractionrandom forestremote sensing productstraining sample migration |
| spellingShingle | Yingbing Liu Yuqin Wu Zeqiang Chen Min Huang Wenying Du Nengcheng Chen Changjiang Xiao A Novel Impervious Surface Extraction Method Based on Automatically Generating Training Samples From Multisource Remote Sensing Products: A Case Study of Wuhan City, China IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing Automatically generating training samples impervious surface extraction random forest remote sensing products training sample migration |
| title | A Novel Impervious Surface Extraction Method Based on Automatically Generating Training Samples From Multisource Remote Sensing Products: A Case Study of Wuhan City, China |
| title_full | A Novel Impervious Surface Extraction Method Based on Automatically Generating Training Samples From Multisource Remote Sensing Products: A Case Study of Wuhan City, China |
| title_fullStr | A Novel Impervious Surface Extraction Method Based on Automatically Generating Training Samples From Multisource Remote Sensing Products: A Case Study of Wuhan City, China |
| title_full_unstemmed | A Novel Impervious Surface Extraction Method Based on Automatically Generating Training Samples From Multisource Remote Sensing Products: A Case Study of Wuhan City, China |
| title_short | A Novel Impervious Surface Extraction Method Based on Automatically Generating Training Samples From Multisource Remote Sensing Products: A Case Study of Wuhan City, China |
| title_sort | novel impervious surface extraction method based on automatically generating training samples from multisource remote sensing products a case study of wuhan city china |
| topic | Automatically generating training samples impervious surface extraction random forest remote sensing products training sample migration |
| url | https://ieeexplore.ieee.org/document/9854083/ |
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