Enhancing LiDAR-UAS Derived Digital Terrain Models with Hierarchic Robust and Volume-Based Filtering Approaches for Precision Topographic Mapping. - Valeria-Ersilia Oniga; Ana-Maria Loghin; Mihaela Macovei; Anca-Alina Lazar; Bogdan Boroianu; Paul Sestras (Remote. Sens., 2024)