Proposal for Navigation System Using Three-Dimensional Maps - Self-Localization Using a 3D Map and Slope Detection Using a 2D Laser Range Finder and 3D Map. - Neng Chen; Shinichiro Suga; Masato Suzuki; Tomokazu Takahashi; Yasushi Mae; Yasuhiko Arai; Seiji Aoyagi (J. Robotics Mechatronics, 2023)