计算机工程与应用Issue(18)：171-175,5.DOI:10.3778/j.issn.1002-8331.1304-0349
由等高线重构曲面的HASMOC方法应用研究
Application of HASMOC method in terrain surface reconstruction from contours
摘要
Abstract
The HASMOC(High Accuracy Surface Modeling-Optimal Control)method is based on HASM, on which more con-straint equations are added. The latter is mainly used to reconstruct surface from discrete points, while the former can be also used to reconstruct terrain surface from contours. By minimizing the norm of the combining equation of the two basic equations of the HASM method, subject to the equality constraints from sample points and bound constraints for each grid points which are surrounded by contours, HASMOC method can preserve the smoothness of the terrain surface, and the high fidelity to the original contours. A real contour lines example is given, and results from HASMOC are compared with that from TIN(Triangu-lated Irregular Network)method, as for the respects of retrieved contour, details of surface and histogram of surface height distri-bution, the former is superior to the latter in terrain surface reconstruction from real contour lines.关键词
高精度曲面建模(HASM)/优化控制/不规则三角网(TIN)/回放等高线/高程分布频率Key words
High Accuracy Surface Modeling(HASM)/optimal control/Triangulated Irregular Network(TIN)/retrieved con-tours/histogram of height distribution分类
信息技术与安全科学引用本文复制引用
宋敦江,毕诚,岳天祥..由等高线重构曲面的HASMOC方法应用研究[J].计算机工程与应用,2013,(18):171-175,5.基金项目
中科院135创新项目（No.Y201131Z06）；国家自然科学基金青年科学基金（No.40801187）；国家自然科学基金杰出青年科学基金（No.40825003）。 （）
