4.1. Visual inspection of the DTM
The first performance assessment measure entailed visual inspection of the final DTM and intermediate results of the algorithm. In addition, the DTM was compared to a DTM produced by an algorithm for determination of terrain models in wooded areas proposed by Kraus and Pfeifer (1998) and implemented in Fusion software (see McGaughey, 2008). The comparison was based on how well the resulting DTM follows variations in the terrain–slopes, ridges and valleys, and how well the DTM fits the original data. Results are shown in Figs. 6, 7, and 10.
4.1. Visual inspection of the DTMThe first performance assessment measure entailed visual inspection of the final DTM and intermediate results of the algorithm. In addition, the DTM was compared to a DTM produced by an algorithm for determination of terrain models in wooded areas proposed by Kraus and Pfeifer (1998) and implemented in Fusion software (see McGaughey, 2008). The comparison was based on how well the resulting DTM follows variations in the terrain–slopes, ridges and valleys, and how well the DTM fits the original data. Results are shown in Figs. 6, 7, and 10.
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