公开(公告)号：US20220148237A1

公开(公告)日：2022-05-12

申请号：US17432094

申请日：2021-05-19

申请人： AFFILIATED HOSPITAL OF JIANGSU UNIVERSITY

发明人： Zhongqun WANG ,  Yue GENG ,  Lihua LI ,  Chen SHAO ,  Zhen SUN ,  Guangyao ZANG ,  Lili ZHANG

IPC分类号： G06T11/00 ,  G06V10/25 ,  G06V10/46 ,  G06V10/36 ,  G06V10/50 ,  G06V10/22 ,  G06V10/75 ,  A61B6/03 ,  A61B6/00

摘要： The present invention discloses a clustering algorithm-based multi-parameter cumulative calculation method for lower limb vascular calcification indexes, including the following steps: firstly carrying out super-pixel segmentation of a CT image, and enabling calcified spots in the CT image to be segmented in each super-pixel region; after the super-pixel segmentation is accomplished, extracting a brightness characteristic value of a super-pixel region where the calcified spots are located by using a Lab color space, and performing edge detection and contour extraction on the calcified spots in the image; and after edge detection and contour extraction, fitting the calcified spots in the image by using a segmented ellipse, and extracting the area of the calcified spots after optimizing an ellipse contour.