摘要
本文把栅格数据处理的一种新工具——数学形态学引入DTM的研究。在文献〔2〕的基础上，首先简要介绍了有关数学形态学的基础理论，然后探讨了各种适用于DTM三角形格网快速构建的整体形态变换算子和方法。在分析了各种异常情况的基础上，提出了顾及地貌特征点线的DTM三角形格网的构建方法，并给出了一些实例。
:
As a new tool of raster data processing. Mathematical morphology can be used for solving sophisticated problems in DTM. In the first part of this paper some basic theo ries of mathematical morphology are introduced based upon[2]. Then some relevant glo bal operators and algorithms for morphology transformation are discussed, which are suit able for fast generating triangulated irregular networks (TINs) in DTM. After analyz ing anomalous cases in TIN generation a method for generating TIN of high fidelity terrain models is developed. The principles and the efficiency of the presented approach, are demostrated by small examples.
出处
《测绘学报》
EI
CSCD
北大核心
1990年第3期161-172,共12页
Acta Geodaetica et Cartographica Sinica
