多源数据融合的三维点云特征面分割和拟合一体化方法

基金项目: 国家自然科学基金资助项目(41071243)

详细信息

The Research of Temporal-Spatial Simulation and Dynamic Regulation System of Water Quality on Sudden Water Pollution

¹Information Center of Ministry of Environmental Protection,1 South Yuhui Road,Chaoyang District,Beijing 100029,China;²Environmental Information and Monitoring Center of Shandong Province, 3377 Jingshi Road,Lixia District,Jinan 250101,China

Funds: 国家自然科学基金资助项目(41071243)

摘要: 针对单纯利用三维激光点云信息不足的问题,提出融合多源数据对三维激光扫描仪获取的点云数据进行特征拟合的方法。根据地面点云及对应的扫描仪参数生成反射值影像;以反射值影像分割结果作为种子面,基于随机抽样一致性方法分割与拟合一体化;融合彩色影像提取的直线信息确定和验证拟合特征的边界。采用RIEGLVZ-400获取的建筑物点云数据进行了特征拟合试验,证明了该方法的有效性。
- 点云 /
- 反射值影像 /
- 影像分割 /
- RANSAC方法 /
- 点云拟合
Abstract: Aiming at the serious water pollution accidents happened in China,combined with pre-established 1D system dynamics water quality models and integration of GIS with system dynamics(SD),a realspace system of spatial-temporal simulation and dynamic regulation of water quality in water pollution accidents is developed;The Songhua River water pollution accident which happened on November,2005 was taken as example to make validation of simulation results and visual dynamic regulation.Dynamic simulation and trend forecast of pollutants transport and transformation is made in spatial and temporal dimension.The simulation,forecast of water quality and model regulation based on different emergency response strategies in water pollution accident is realized.
- system dynamics /
- ?GIS /
- ?wate

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