Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1109/IGARSS.2009.5417389 |
MAPPING OF WELWITSCHIA MIRABILIS WITH HIGH RESOLUTION SATELLITE IMAGERY IN THE NAMIB DESERT | |
Kellenberger, Tobias W.1; Kneubuehler, Mathias2 | |
通讯作者 | Kellenberger, Tobias W. |
会议名称 | IEEE International Geoscience and Remote Sensing Symposium |
会议日期 | JUL 12-17, 2009 |
会议地点 | Cape Town, SOUTH AFRICA |
英文摘要 | This study is about a non-invasive mapping technique of Welwitschia mirabilis in its habitat, the Namib-Naukluft Park, based on spatially high resolved satellite images. First, two satellite data sets from IKONOS and Quickbird satellite are geometrically corrected, including GPS ground control points and a digital elevation model Second, Welwitschia individuals, bushes, sandy and rocky surroundings are successfully mapped with a supervised and object-oriented classification approach GPS points, training samples and verification objects have been collected previously in a field survey. 49 of 55 (89%) Welwitschia individuals known in ground reference, were classified successfully in both data sets, despite the limited spectral and spatial resolution Compared to a pixel-based classification of Welwitschia with IKONOS data also published on this conference, It was shown, that the object-oriented approach Improves the mapping precision of Welwitschia species. The presented area wide mapping technique from space is effective and non-invasive, but limited by the spatial and spectral resolution of the input satellite data |
英文关键词 | object oriented mapping Welwitschia mirabilis high resolution satellite imagery |
来源出版物 | 2009 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM, VOLS 1-5 |
ISSN | 2153-6996 |
出版年 | 2009 |
页码 | 2746-+ |
ISBN | 978-1-4244-3394-0 |
出版者 | IEEE |
类型 | Proceedings Paper |
语种 | 英语 |
国家 | Switzerland |
收录类别 | CPCI-S |
WOS记录号 | WOS:000281054101366 |
WOS类目 | Geosciences, Multidisciplinary ; Remote Sensing |
WOS研究方向 | Geology ; Remote Sensing |
资源类型 | 会议论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/297529 |
作者单位 | 1.Swiss Fed Off Topog Swisstopo, Seftigenstr 264, CH-3084 Wabern, Switzerland; 2.Univ Zurich, Remote Sensing Lab, CH-8057 Zurich, Switzerland |
推荐引用方式 GB/T 7714 | Kellenberger, Tobias W.,Kneubuehler, Mathias. MAPPING OF WELWITSCHIA MIRABILIS WITH HIGH RESOLUTION SATELLITE IMAGERY IN THE NAMIB DESERT[C]:IEEE,2009:2746-+. |
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