Determining the relationship between the slope and directional distribution of the UAV point cloud and the accuracy of various IDW interpolation

Inverse Distance Weighted (IDW) based interpolation method is also widely used in earth science studies. In the classical IDW method, directional distribution of reference points around point to be estimated within critical circle and slope differences are not taken into consideration. On other hand, IDW-based developed by Shepard, ratio distances radius (r), anisotropy this study, results Shepard were compared increase accuracy produced from UAV data. A software has been make these comparisons more detail. The methods takes consideration anisotropy, radius. flights performed three different study areas with topographic features 3D cloud data obtained order detailed analyzes. Using software, have tested models discussed. major contribution paper evaluation various options when applied As a result, especially geodetic studies form data, it was observed that improved 11% 37% using suitable power parameter value considering differences.