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搜索结果: 1-9 共查到测绘仪器 3D相关记录9条 . 查询时间(0.203 秒)
针对2D/3D点包含判定方法的复杂和低效问题,提出基于点圆理论的方法:分类描述奇异情形在点圆中的投影、叠加特征及判定方法,将3D点包含测试转换为与2D点包含测试一致的算法(除子平面方程系数计算外)。筛选和累加与射线相交的射线以上或以下的线段,据此奇偶性判定3D或2D点包含;解析2D射线与多边形相交连续线段内节点的几何特征,即y坐标要么都大于、要么都小于测试点,构建高效2D点包含增量筛选射线法。实验...
ThePleiades system developed by theFrench space agency CNESshall be ready for launch in early 2009. It deals with a new generation of high resolution optical satellites. The great agility of Pleiades ...
This paper describes a technique for 3D Reconstruction of large outdoor areas using terrestrial laser scanning. It presents the paradigm for automated 3D registration and requirements of the positioni...
The introduction of laser-based photogrammetry in the surveying of Cultural Heritage provides an increasing volume of data, which requires multi-resolution approaches for analyzing and displaying th...
A scanning device generally referred to as a "laser scanner", used to obtain 3D data of the objects by irradiating laser beams, is enjoying a steady rise in the number of users in the field of cultura...
3D scanning using laser scanners has been recognized as one of the most efficient and accurate way to record and reconstruct digitally large-scale cultural heritages. The authors report on 3D scanning...
Recording, mapping, 3D modeling and visualization of cultural heritage are currently receiving more attention for use in digital archives or VR museum. However, 3D Representation of historical structu...
Seagrass communities are considered one of the most productive and complex marine ecosystems. Seagrasses belong to a small group of 66 species that can form extensive meadows in all coastal areas of o...
The retrieval of atmospheric temperature and water vapor profiles from infrared Sounder are severely limited by the presence of cloud. Therefore, retrieval from infrared sounding observations is perfo...

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