Combining Nadir, Oblique, and Façade Imagery Enhances Reconstruction of Rock Formations Using Unmanned Aerial Vehicles. - Yu-Hsuan Tu; Kasper Johansen; Bruno Aragon; Bonny M. Stutsel; Yoseline Angel; Omar A. López Camargo; Samer Al-Mashharawi; Jiale Jiang; Matteo G. Ziliani; Matthew F. McCabe (IEEE Trans. Geosci. Remote. Sens., 2021)