數直地形模型에 있어 地形의 分析과 組合補間法의 適用에 관한 硏究

A Study on the Application of Combined Interpolation and Terrain Classification in Digital Terrain Model

本 硏究에서는 地形의 定量的 分類變數를 이용하여 地形을 分類하고, 地形에 따라 適切한 補間法을 適用하므로써 數直地形 模型의 正確度 향상과 效用性을 높이는데 그 目的이 있다. 地形解析에 있어서 定量的 分類 變數를 利用 對象地域을 4개의 群集으로 分類하여 地形에 따른 經濟的인 補間法을 適用하였으며 格子間隔이 클 境遇 各 地形群別로 補間法을 組合시킨 組合補間法을 適用하므로써 正確度를 向上시킬 수 있었다.

In this study, terrain classification was done by using the quantitative classification parameter and suitable interpolation method was applied to improve the accuracy of digital terrain models and to increase tis practical applications. A study area was classified into three groups using the quantitative classification parameters and an interpolation equation suitable for each group was used for economical application of the interpola-tion method. The accuracy of digital terrain models was improved in case of large grid intervals by applying combined interpolation method suitable for each terrain group.