公开(公告)号：US11535400B2

公开(公告)日：2022-12-27

申请号：US17169505

申请日：2021-02-07

Applicant: NANJING UNIVERSITY OF AERONAUTICS AND ASTRONAUTICS

Inventor： Jun Wang ,  Xiaoge He ,  Yuanpeng Liu ,  Yuan Zhang

IPC: B64F5/40 ,  G06T7/33 ,  G05B19/4097 ,  G06K9/62 ,  G06T5/00 ,  G06V10/75 ,  G06V10/48 ,  G06V10/77

Abstract: A fairing skin repair method based on measured wing data includes fairing skin registration. Data set P1 through denoising and filtering wing point cloud data is reorganized to obtain a key point set P. A histogram feature descriptor in a normal direction of any key point in set P and a skin point cloud data Q is calculated. Euclidean distance between feature descriptors of two points is calculated through K-nearest neighbor algorithm, and points with high similarity are added into a set M. A clustering is performed on set M using a Hough voting algorithm to obtain a local point cloud set P′ in set P. The method includes fairing skin repair. The boundary line of the point frame is projected onto Q, and a distance between a projection line on the point cloud and the boundary line is calculated to obtain an amount of skin to be repaired.