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 |
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.
|