US 11,723,630 B2
Method for positioning key features of a lens based on ocular B-mode ultrasound images
Jiancheng Lv, Chengdu (CN); Yong Wang, Chengdu (CN); Yongsheng Sang, Chengdu (CN); Dezhong Peng, Chengdu (CN); Xi Peng, Chengdu (CN); Yanan Sun, Chengdu (CN); Zhenan He, Chengdu (CN); Qing Ye, Chengdu (CN); Mao Li, Chengdu (CN); and Quanhui Liu, Chengdu (CN)
Assigned to Sichuan University, Chengdu (CN)
Filed by Sichuan University, Chengdu (CN)
Filed on Apr. 9, 2021, as Appl. No. 17/301,615.
Claims priority of application No. 202010408004.9 (CN), filed on May 14, 2020.
Prior Publication US 2021/0353262 A1, Nov. 18, 2021
Int. Cl. A61B 8/08 (2006.01); G16H 30/20 (2018.01); G16H 30/40 (2018.01); A61B 8/10 (2006.01); G06N 3/084 (2023.01)
CPC A61B 8/5246 (2013.01) [A61B 8/10 (2013.01); A61B 8/5223 (2013.01); G06N 3/084 (2013.01); G16H 30/20 (2018.01); G16H 30/40 (2018.01)] 10 Claims
OG exemplary drawing
 
1. A method for positioning key features of a lens based on ocular B-mode ultrasound images, comprising:
S1: acquiring and preprocessing the ocular B-mode ultrasound images to obtain a preprocessed B-mode ultrasound image, eyeball coordinates and lens coordinates;
S2: fusing the preprocessed B-mode ultrasound image and the eyeball coordinates and then sending the preprocessed B-mode ultrasound image and the eyeball coordinates into a trained target detection network to obtain eyeball position images; sending the preprocessed B-mode ultrasound image and the lens coordinates into the trained target detection network to obtain lens position images;
S3: substituting the eyeball position images and the lens position images into a trained feature extraction network group to obtain image features and feature coordinates corresponding to the eyeball position images and the lens position images, respectively;
S4: substituting the image features into a trained collaborative learning network to screen key image features; and
S5: marking a feature coordinate corresponding to the key image feature on the ocular B-mode ultrasound images to complete positioning the key features of the lens.