DEM EXTRACTION FROM CHANG'E-1 LAM DATA BY SURFACE SKINNING TECHNOLOGY
DEM is a digital model or 3-D representation of a terrain's surface and it is created from terrain elevation data. The main models for DEM extraction based on Lidar data or Laser Altimeter data currently use the idea that point cloud is scattered, such as regular grid model, TIN model and con...
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| Format: | Article |
| Language: | English |
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Copernicus Publications
2012-08-01
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| Series: | The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences |
| Online Access: | https://www.int-arch-photogramm-remote-sens-spatial-inf-sci.net/XXXVIII-4-W25/159/2011/isprsarchives-XXXVIII-4-W25-159-2011.pdf |
| _version_ | 1818520666453835776 |
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| author | X.-B. Zhang W.-M. Zhang |
| author_facet | X.-B. Zhang W.-M. Zhang |
| author_sort | X.-B. Zhang |
| collection | DOAJ |
| description | DEM is a digital model or 3-D representation of a terrain's surface and it is created from terrain elevation data. The main models for
DEM extraction based on Lidar data or Laser Altimeter data currently use the idea that point cloud is scattered, such as regular grid
model, TIN model and contour model. Essentially, in these above methods, the discrete points are interpolated into regular grid data
and irregular grid data. In fact, point cloud generated by Laser Altimeter is not totally scattered, but have some regularity. In this
paper, to utilize this regularity, the proposed method adopts surface skinning technology to generate DEM from Chang'E-1 Laser
Altimeter data. The surface skinning technology is widely used in the field of mechanical engineering. Surface skinning is the
process of passing a smooth surface through a set of curves called sectional curves, which, in general, may not be compatible. In the
process of generating section line, a need for attention is that it needs to use curvature method to get a set of characteristic points,
and these feature points were used to subdivide segment; the next step is generating several curves on some key places. These curves
describe the shape of the curved surface. The last step is to generate a curved surface that through these curves. The result shows that,
this idea is feasible, useful and it provides a novel way to generate accurate DEM. |
| first_indexed | 2024-12-11T01:40:30Z |
| format | Article |
| id | doaj.art-584cf99c535c42099086ce16bab6eceb |
| institution | Directory Open Access Journal |
| issn | 1682-1750 2194-9034 |
| language | English |
| last_indexed | 2024-12-11T01:40:30Z |
| publishDate | 2012-08-01 |
| publisher | Copernicus Publications |
| record_format | Article |
| series | The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences |
| spelling | doaj.art-584cf99c535c42099086ce16bab6eceb2022-12-22T01:25:03ZengCopernicus PublicationsThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences1682-17502194-90342012-08-01XXXVIII-4-W2515916210.5194/isprsarchives-XXXVIII-4-W25-159-2011DEM EXTRACTION FROM CHANG'E-1 LAM DATA BY SURFACE SKINNING TECHNOLOGYX.-B. Zhang0W.-M. Zhang1State Key Laboratory of Remote Sensing Science, School of Geography, Beijing Normal University, 100875 Beijing, China, Beijing Normal University, No. 19, XinJieKouWai St., HaiDian District, Beijing 100875, P. R. ChinaState Key Laboratory of Remote Sensing Science, School of Geography, Beijing Normal University, 100875 Beijing, China, Beijing Normal University, No. 19, XinJieKouWai St., HaiDian District, Beijing 100875, P. R. ChinaDEM is a digital model or 3-D representation of a terrain's surface and it is created from terrain elevation data. The main models for DEM extraction based on Lidar data or Laser Altimeter data currently use the idea that point cloud is scattered, such as regular grid model, TIN model and contour model. Essentially, in these above methods, the discrete points are interpolated into regular grid data and irregular grid data. In fact, point cloud generated by Laser Altimeter is not totally scattered, but have some regularity. In this paper, to utilize this regularity, the proposed method adopts surface skinning technology to generate DEM from Chang'E-1 Laser Altimeter data. The surface skinning technology is widely used in the field of mechanical engineering. Surface skinning is the process of passing a smooth surface through a set of curves called sectional curves, which, in general, may not be compatible. In the process of generating section line, a need for attention is that it needs to use curvature method to get a set of characteristic points, and these feature points were used to subdivide segment; the next step is generating several curves on some key places. These curves describe the shape of the curved surface. The last step is to generate a curved surface that through these curves. The result shows that, this idea is feasible, useful and it provides a novel way to generate accurate DEM.https://www.int-arch-photogramm-remote-sens-spatial-inf-sci.net/XXXVIII-4-W25/159/2011/isprsarchives-XXXVIII-4-W25-159-2011.pdf |
| spellingShingle | X.-B. Zhang W.-M. Zhang DEM EXTRACTION FROM CHANG'E-1 LAM DATA BY SURFACE SKINNING TECHNOLOGY The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences |
| title | DEM EXTRACTION FROM CHANG'E-1 LAM DATA BY SURFACE SKINNING TECHNOLOGY |
| title_full | DEM EXTRACTION FROM CHANG'E-1 LAM DATA BY SURFACE SKINNING TECHNOLOGY |
| title_fullStr | DEM EXTRACTION FROM CHANG'E-1 LAM DATA BY SURFACE SKINNING TECHNOLOGY |
| title_full_unstemmed | DEM EXTRACTION FROM CHANG'E-1 LAM DATA BY SURFACE SKINNING TECHNOLOGY |
| title_short | DEM EXTRACTION FROM CHANG'E-1 LAM DATA BY SURFACE SKINNING TECHNOLOGY |
| title_sort | dem extraction from chang e 1 lam data by surface skinning technology |
| url | https://www.int-arch-photogramm-remote-sens-spatial-inf-sci.net/XXXVIII-4-W25/159/2011/isprsarchives-XXXVIII-4-W25-159-2011.pdf |
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