| SPOT5 Dimap文件解析及在影像纠正中的应用 |
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| 引用本文： | 燕琴,张继贤. SPOT5 Dimap文件解析及在影像纠正中的应用[J]. 遥感信息, 2005, 0(5): 12-15 |
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| 作者姓名： | 燕琴 张继贤 |
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| 作者单位： | 中国测绘科学研究院,北京,100039 |
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| 基金项目： | 国家基础测绘项目“我国测绘困难地区测图可行性方案与技术试验”(编号:1469990424233)，国家测绘局重点实验室开放基金项目“基于高分辨率遥感影像的区域地理框架数据提取技术”的资助 |
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| 摘 要： | Dimap是Digital Image Map的缩写,它是由法国Spot Image公司、Satellus和法国空间局（CNES,the French National Space Agency）合作推出的新一代影像分发数据格式规范.Dimap 1.1于2003年5月通过,目前主要用于SPOT5卫星数据的分发.本文介绍了开发Dimap的目的和其主要特征,重点对Dimap元数据进行了详细解析,并给出了Dimap数据在SPOT5影像的无控制纠正中的应用方法.通过试验证明,基于Dimap元数据的SPOT5影像纠正可以解决稀少控制点所带来的难题.
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| 关 键 词： | Dimap 元数据 影像纠正 SPOT5 |
| 文章编号： | 1000-3177(2005)81-0012-04 |
| 修稿时间： | 2005-03-03 |
Analysis and Application of SPOT 5 Dimap Metadata |
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| YAN Qin,ZHANG Ji-xian. Analysis and Application of SPOT 5 Dimap Metadata[J]. Remote Sensing Information, 2005, 0(5): 12-15 |
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| Authors: | YAN Qin ZHANG Ji-xian |
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| Abstract: | Dimap,standing for digital image map,is mainly a metadata format designed by Spot Image,Satellus and CNES(the French National Space Agency) to document digital image maps.It was designed taking into account the early experiences of GIS-Geospot and GIS-Image.It is composed of two parts,adopting GeoTIFF as the primary image layer and XML to describe metadata.Any basic internet browser may be used to access and view Dimap databases.Dimap metadata is composed of container,groups and subgroups, |
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| Keywords: | and property/values.Dimap metadata contain plenty of and detailed information about satellite in orbit and image parameters all of which are all very helpful and necessary for SPOT image rectification with sparse GCPs(Ground Control Point).At first the paper gives a detailed introduction to metadata then tells how to process the data prepared for image rectification with sparse GCPs.Experiments show what accuracy of image rectification can be got with metadata and sparse GCPs.Key words:SPOT 5 Dimap metadata image rectification sparse GCPs |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
