{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,1]],"date-time":"2026-07-01T20:37:41Z","timestamp":1782938261493,"version":"3.54.5"},"reference-count":35,"publisher":"MDPI AG","issue":"9","license":[{"start":{"date-parts":[[2019,5,10]],"date-time":"2019-05-10T00:00:00Z","timestamp":1557446400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"national key research and development plan","award":["2016YFE0205300"],"award-info":[{"award-number":["2016YFE0205300"]}]},{"DOI":"10.13039\/501100001809","name":"the National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["41401513"],"award-info":[{"award-number":["41401513"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"name":"the central level of public welfare research institutes basic research business fee project","award":["7771803"],"award-info":[{"award-number":["7771803"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Remote Sensing"],"abstract":"<jats:p>As urbanization has progressed over the past 40 years, continuous population growth and the rapid expansion of urban land use have caused some regions to experience various problems, such as insufficient resources and issues related to the environmental carrying capacity. The urbanization process can be understood using nighttime light data to quickly and accurately extract urban boundaries at large scales. A new method is proposed here to quickly and accurately extract urban boundaries using nighttime light imagery. Three types of nighttime light data from the DMSP\/OLS (US military\u2019s defense meteorological satellite), NPP-VIIRS (National Polar-orbiting Partnership-Visible Infrared Imaging Radiometer Suite), and Luojia1-01 data sets are selected, and the high-precision urban boundaries obtained from a high-resolution image are selected as the true value. Next, 15 cities are selected as the training samples, and the Jaccard coefficient is introduced. The spatial data comparison method is then used to determine the optimal threshold function for the urban boundary extraction. Alternative high-precision urban boundary truth-values for the 13 cities are then selected, and the accuracy of the urban boundary extraction results obtained using the optimal threshold function and the mutation detection method are evaluated. The following observations are made from the results: (i) The average relative errors for the urban boundary extraction results based on the three nighttime light data sources (DMSP\/OLS, NPP-VIIRS, and Luojia1-01) using the optimal threshold functions are 29%, 20%, and 39%, respectively. Compared with the mutation detection method, these relative errors are reduced by 83%, 18%, and 77%, respectively; (ii) The average overall classification accuracies of the extracted urban boundaries are 95%, 96%, and 93%, respectively, which are 5%, 1%, and 7% higher than those for the mutation detection method; (iii) The average Kappa coefficients of the extracted urban boundaries are 61%, 71%, and 61%, respectively, which are 5%, 4%, and 12% higher than for the mutation detection method.<\/jats:p>","DOI":"10.3390\/rs11091126","type":"journal-article","created":{"date-parts":[[2019,5,13]],"date-time":"2019-05-13T03:57:07Z","timestamp":1557719827000},"page":"1126","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":30,"title":["A Rapid and Automated Urban Boundary Extraction Method Based on Nighttime Light Data in China"],"prefix":"10.3390","volume":"11","author":[{"given":"Xiaojiang","family":"Liu","sequence":"first","affiliation":[{"name":"Chinese Academy of Surveying and Mapping (CASM), No. 28, Lianhuachi West Road, Beijing 100830, China"},{"name":"School of Geometrics, Liaoning Technical University, 88 Yulong Road, Fuxin 123000, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xiaogang","family":"Ning","sequence":"additional","affiliation":[{"name":"Chinese Academy of Surveying and Mapping (CASM), No. 28, Lianhuachi West Road, Beijing 100830, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hao","family":"Wang","sequence":"additional","affiliation":[{"name":"Chinese Academy of Surveying and Mapping (CASM), No. 28, Lianhuachi West Road, Beijing 100830, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Chenggang","family":"Wang","sequence":"additional","affiliation":[{"name":"Chinese Academy of Surveying and Mapping (CASM), No. 28, Lianhuachi West Road, Beijing 100830, China"},{"name":"College of Geomatics, Shandong University of Science, 579 Qianwangang Road, Qingdao 266590, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hanchao","family":"Zhang","sequence":"additional","affiliation":[{"name":"Chinese Academy of Surveying and Mapping (CASM), No. 28, Lianhuachi West Road, Beijing 100830, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jing","family":"Meng","sequence":"additional","affiliation":[{"name":"Chinese Academy of Surveying and Mapping (CASM), No. 28, Lianhuachi West Road, Beijing 100830, China"},{"name":"School of Geometrics, Liaoning Technical University, 88 Yulong Road, Fuxin 123000, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2019,5,10]]},"reference":[{"key":"ref_1","first-page":"320","article-title":"Development of urban geography in China since 1978","volume":"19","author":"Gu","year":"1999","journal-title":"Sci. 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