膜层厚度计算方法、装置、电子设备及存储介质
By determining the position of the fovea of the macula in fundus OCT images and performing tilt correction, the problem of membrane thickness calculation error caused by the tilt of fundus OCT images is solved, improving the accuracy and precision of membrane thickness calculation and providing a reliable basis for the diagnosis and treatment of macular degeneration.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- EVISION TECH (BEIJING) CO LTD
- Filing Date
- 2025-09-30
- Publication Date
- 2026-07-17
AI Technical Summary
Due to factors such as inaccurate equipment calibration, patient cooperation, and differences in ocular structure, fundus OCT images may appear tilted, leading to errors in membrane thickness calculation and increasing the possibility of clinical misjudgment.
By determining the position coordinates of the fovea in the fundus OCT image, the retinal and choroidal layers are accurately segmented using multilayer annotation and segmentation network technology. The position of the fovea is determined by combining target detection and semantic segmentation methods. The image is corrected using a tilt correction method. A local membrane segment located on the basal side of the fovea and within the target distance threshold is selected as the reference for membrane thickness calculation.
It effectively reduces the error in film thickness calculation caused by image tilt, improves the accuracy and precision of film thickness calculation, provides more reliable clinical diagnostic basis, helps to more accurately assess macular degeneration and other related diseases, and supports more reasonable treatment plans.
Smart Images
Figure CN121564064B_ABST