End-to-End High-Quality DEM Generation and Ground Filtering From ALS Point Clouds (opens in new tab)

Ground filtering (GF) of airborne laser scanning (ALS) point clouds is crucial for producing high-quality digital elevation models (DEMs). Current learning-based methods commonly rely on pointwise classification, and minor errors may significantly degrade the quality of DEMs. In addition, these methods are sensitive to point density variations. To address these challenges, this article proposes an end-to-end DEM generation method that directly produces DEMs from ALS point clouds. Specifically...