UPKD: Unsupervised pylon keypoint detection from 3D LiDAR data for autonomous UAV power inspection. - Jiayu Wu; Chi Chen 002; Zhengfei Yan; Shaolong Wu; Zhiye Wang; Liuchun Li; Jing Fu; Bisheng Yang (Int. J. Appl. Earth Obs. Geoinformation, 2024)