Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.3390/s22186844 |
Self-Trained Deep Forest with Limited Samples for Urban Impervious Surface Area Extraction in Arid Area Using Multispectral and PolSAR Imageries | |
Liu, Ximing; Samat, Alim; Li, Erzhu; Wang, Wei; Abuduwaili, Jilili | |
通讯作者 | Samat, A |
来源期刊 | SENSORS
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EISSN | 1424-8220 |
出版年 | 2022 |
卷号 | 22期号:18 |
英文摘要 | Impervious surface area (ISA) has been recognized as a significant indicator for evaluating levels of urbanization and the quality of urban ecological environments. ISA extraction methods based on supervised classification usually rely on a large number of manually labeled samples, the production of which is a time-consuming and labor-intensive task. Furthermore, in arid areas, man-made objects are easily confused with bare land due to similar spectral responses. To tackle these issues, a self-trained deep-forest (STDF)-based ISA extraction method is proposed which exploits the complementary information contained in multispectral and polarimetric synthetic aperture radar (PolSAR) images using limited numbers of samples. In detail, this method consists of three major steps. First, multi-features, including spectral, spatial and polarimetric features, are extracted from Sentinel-2 multispectral and Chinese GaoFen-3 (GF-3) PolSAR images; secondly, a deep forest (DF) model is trained in a self-training manner using a limited number of samples for ISA extraction; finally, ISAs (in this case, in three major cities located in Central Asia) are extracted and comparatively evaluated. The experimental results from the study areas of Bishkek, Tashkent and Nursultan demonstrate the effectiveness of the proposed method, with an overall accuracy (OA) above 95% and a Kappa coefficient above 0.90. |
英文关键词 | impervious surface area self-training deep forest Sentinel-2 GaoFen-3 PolSAR |
类型 | Article |
语种 | 英语 |
开放获取类型 | Green Published, gold |
收录类别 | SCI-E |
WOS记录号 | WOS:000857093700001 |
WOS关键词 | SPECTRAL MIXTURE ANALYSIS ; COMPOSITION INDEX ; NIGHTTIME LIGHT ; SYNERGISTIC USE ; SAR ; CLASSIFICATION ; DYNAMICS ; INTEGRATION ; CHINA ; MODEL |
WOS类目 | Chemistry, Analytical ; Engineering, Electrical & Electronic ; Instruments & Instrumentation |
WOS研究方向 | Chemistry ; Engineering ; Instruments & Instrumentation |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/394484 |
推荐引用方式 GB/T 7714 | Liu, Ximing,Samat, Alim,Li, Erzhu,et al. Self-Trained Deep Forest with Limited Samples for Urban Impervious Surface Area Extraction in Arid Area Using Multispectral and PolSAR Imageries[J],2022,22(18). |
APA | Liu, Ximing,Samat, Alim,Li, Erzhu,Wang, Wei,&Abuduwaili, Jilili.(2022).Self-Trained Deep Forest with Limited Samples for Urban Impervious Surface Area Extraction in Arid Area Using Multispectral and PolSAR Imageries.SENSORS,22(18). |
MLA | Liu, Ximing,et al."Self-Trained Deep Forest with Limited Samples for Urban Impervious Surface Area Extraction in Arid Area Using Multispectral and PolSAR Imageries".SENSORS 22.18(2022). |
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