公开(公告)号：US11551341B2

公开(公告)日：2023-01-10

申请号：US16765871

申请日：2018-03-06

Applicant: SOUTHEAST UNIVERSITY

Inventor： Jian Zhang ,  Futao Ni

IPC: G06T7/00 ,  G06T7/70 ,  G06T5/00 ,  G06T5/20 ,  G06T7/80 ,  G06T7/136 ,  G06T7/62 ,  G01B11/02 ,  G01N33/38 ,  G06T11/00

Abstract: The present invention discloses a method and device for automatically drawing structural cracks and precisely measuring widths thereof. The method comprises a method for automatically drawing cracks and a method for calculating widths of these cracks based on a single-pixel skeleton and Zernike orthogonal moments, wherein the method for automatically drawing cracks is used to rapidly and precisely draw cracks in the surface of a structure, and the method for calculating widths of these cracks based on a single-pixel skeleton and Zernike orthogonal moments is used to calculate widths of macro-cracks and micro-cracks in an image in a real-time manner.