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Efficiency Of Lidar Technologies in Constructing Digital Terrain Models During Large-Scale Topogeodetic Surveys

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Analysis reveals the benefits of lidar for terrain mapping, suggesting a hybrid approach with photogrammetry.

Lidar outperforms photogrammetry in dense vegetation areas, optimizing digital terrain models.
The study indicates that while lidar excels in complex terrains, photogrammetry is more cost-effective in open areas.
Multi-criteria analysis guides the optimal method selection, balancing accuracy and budget constraints.
Overall, a hybrid approach is recommended to leverage the strengths of both lidar and photogrammetry for DTMs.

Yurii Vodopianov (2025) studied this question.

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