公开(公告)号：US10818027B2

公开(公告)日：2020-10-27

申请号：US16077523

申请日：2017-05-24

Applicant: Shenzhen Institutes of Advanced Technology Chinese Academy of Sciences

Inventor： Shoujun Zhou ,  Baolin Li ,  Cheng Wang ,  Pei Lu

IPC: G06T7/66 ,  G06T7/12 ,  G06T7/269 ,  G06T7/149

Abstract: A method and an apparatus for extracting a centerline of a tubular object are provided. The method includes: preprocessing an image of the tubular object whose centerline is to be extracted to obtain an enhanced image, acquiring a gradient vector flow field of the enhanced image; acquiring a deformation force parameter based on the gradient vector flow field and extracting ridge points of the tubular object from the enhanced image, establishing a regularized open curve deformable model; if a deformation end condition is not met, deforming and processing one ridge line segment in the initial ridge line segment list based on the model to obtain a centerline segment of the tubular object, updating the initial ridge line segment list based on the ridge line segment traversed; if the deformation end condition is met, generating a centerline of the tubular object based on the centerline segments.

公开(公告)号：US20200175711A1

公开(公告)日：2020-06-04

申请号：US16077523

申请日：2017-05-24

Applicant: Shenzhen Institutes of Advanced Technology Chinese Academy of Sciences

Inventor： Shoujun Zhou ,  Baolin Li ,  Cheng Wang ,  Pei Lu

IPC: G06T7/66 ,  G06T7/269 ,  G06T7/12 ,  G06T7/149

Abstract: A method and an apparatus for extracting a centerline of a tubular object are provided. The method includes: preprocessing an image of the tubular object whose centerline is to be extracted to obtain an enhanced image, acquiring a gradient vector flow field of the enhanced image; acquiring a deformation force parameter based on the gradient vector flow field and extracting ridge points of the tubular object from the enhanced image, establishing a regularized open curve deformable model; if a deformation end condition is not met, deforming and processing one ridge line segment in the initial ridge line segment list based on the model to obtain a centerline segment of the tubular object, updating the initial ridge line segment list based on the ridge line segment traversed; if the deformation end condition is met, generating a centerline of the tubular object based on the centerline segments.