Evaluation of the Chinese fine spatial resolution hyperspectral satellite TianGong-1 in urban land-cover classification
文献类型：期刊论文
| 作者 | Li, Xueke1; Wu, Taixia1; Liu, Kai1; Li, Yao1; Zhang, Lifu1 |
| 刊名 | Remote Sensing
 |
| 出版日期 | 2016 |
| 卷号 | 8期号:5 |
| 关键词 | SURFACE SHORTWAVE RADIATION CLEAR-SKY DAYS BROAD-BAND MODELS LANDSAT-TM DATA NET-RADIATION HETEROGENEOUS LANDSCAPE IRRADIANCE PREDICTIONS RUGGED TERRAIN EARTHS SURFACE SATELLITE DATA |
| 通讯作者 | Wu, Taixia (wutx@radi.ac.cn) |
| 英文摘要 | The successful launch of the Chinese high spatial resolution hyperspectral satellite TianGong-1 (TG-1) opens up new possibilities for applications of remotely-sensed satellite imagery. One of the main goals of the TG-1 mission is to provide observations of surface attributes at local and landscape spatial scales to map urban land cover accurately using the hyperspectral technique. This study attempted to evaluate the TG-1 datasets for urban feature analysis, using existing data over Beijing, China, by comparing the TG-1 (with a spatial resolution of 10 m) to EO-1 Hyperion (with a spatial resolution of 30 m). The spectral feature of TG-1 was first analyzed and, thus, finding out optimal hyperspectral wavebands useful for the discrimination of urban areas. Based on this, the pixel-based maximum likelihood classifier (PMLC), pixel-based support vector machine (PSVM), hybrid maximum likelihood classifier (HMLC), and hybrid support vector machine (HSVM) were implemented, as well as compared in the application of mapping urban land cover types. The hybrid classifier approach, which integrates the pixel-based classifier and the object-based segmentation approach, was demonstrated as an effective alternative to the conventional pixel-based classifiers for processing the satellite hyperspectral data, especially the fine spatial resolution data. For TG-1 imagery, the pixel-based urban classification was obtained with an average overall accuracy of 89.1%, whereas the hybrid urban classification was obtained with an average overall accuracy of 91.8%. For Hyperion imagery, the pixel-based urban classification was obtained with an average overall accuracy of 85.9%, whereas the hybrid urban classification was obtained with an average overall accuracy of 86.7%. Overall, it can be concluded that the fine spatial resolution satellite hyperspectral data TG-1 is promising in delineating complex urban scenes, especially when using an appropriate classifier, such as the hybrid classifier. © 2016 by the authors. |
| 学科主题 | Remote Sensing |
| 类目[WOS] | Remote Sensing |
| 收录类别 | SCI ; EI |
| 语种 | 英语 |
| WOS记录号 | WOS:20162302468668 |
| 源URL | [http://ir.radi.ac.cn/handle/183411/39440]  |
| 专题 | 遥感与数字地球研究所_SCI/EI期刊论文_期刊论文 |
| 作者单位 | 1. Department of Geography, University of Connecticut, Storrs, Mansfield 2.CT 3.06269, United States 4. State Key Laboratory of Remote Sensing Science, Institute of Remote Sensing and Digital Earth, Chinese Academy of Sciences, Beijing 5.100101, China 6. Key Laboratory of Water Cycle and Related Land Surface Processes, Institute of Geographic Sciences and Natural Resources, Chinese Academy of Sciences, Beijing 7.100101, China 8. University of Chinese Academy of Sciences, Beijing 9.100094, China |
| 推荐引用方式 GB/T 7714 | Li, Xueke,Wu, Taixia,Liu, Kai,et al. Evaluation of the Chinese fine spatial resolution hyperspectral satellite TianGong-1 in urban land-cover classification[J]. Remote Sensing,2016,8(5). |
| APA | Li, Xueke,Wu, Taixia,Liu, Kai,Li, Yao,&Zhang, Lifu.(2016).Evaluation of the Chinese fine spatial resolution hyperspectral satellite TianGong-1 in urban land-cover classification.Remote Sensing,8(5). |
| MLA | Li, Xueke,et al."Evaluation of the Chinese fine spatial resolution hyperspectral satellite TianGong-1 in urban land-cover classification".Remote Sensing 8.5(2016). |
入库方式： OAI收割
来源：遥感与数字地球研究所
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