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首页> 外文期刊>Acta horticulturae et regiotecturae >COMPARISON OF DIGITAL ELEVATION MODELS BY VISIBILITY ANALYSIS IN LANDSCAPE
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COMPARISON OF DIGITAL ELEVATION MODELS BY VISIBILITY ANALYSIS IN LANDSCAPE

机译：基于景观可见性分析的数字高程模型比较

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摘要

The paper investigates suitability of digital surface model for visibility analysis in GIS. In experiment there were analysed viewsheds from 14 observer points calculated on digital surface model, digital terrain model and its comparison to field survey. Data sources for the investigated models were LiDAR digital terrain model and LiDAR digital surface model with vegetation distributed by the Czech Administration for Land Surveying and Cadastre. The overlay method was used for comparing accuracy of models and the reference model was LiDAR digital surface model. Average equalities in comparison with LiDAR digital terrain model, ZABAGED model and field survey were 15.5 %, 17.3% and 20.9%, respectively.
机译：本文研究了数字表面模型在GIS中进行可见性分析的适用性。在实验中，根据数字地面模型，数字地形模型及其与野外测量的比较，从14个观测点分析了视域。被调查模型的数据源是由捷克土地测量和地籍局分配的LiDAR数字地形模型和带植被的LiDAR数字地面模型。叠加法用于比较模型的准确性，参考模型为LiDAR数字表面模型。与LiDAR数字地形模型，ZABAGED模型和现场调查相比，平均平等率分别为15.5％，17.3％和20.9％。

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