Fundus Image Transformation for Retinal Thickness Symmetry
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing methods for evaluating retinal layer thickness symmetry in fundus images, particularly in the temporal region, are inadequate due to asymmetrical reference lines, leading to inappropriate assessments.
Innovation Solution
A transformation method that adjusts the angle between straight lines passing through the macular and optic disc regions to approach 180 degrees, allowing for appropriate evaluation of symmetry in both nasal and temporal regions by enlarging or reducing specific areas of the fundus image.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a straight line passing through the macular region and optic disc region is used as a reference for symmetry evaluation, then symmetry in the nasal region can be appropriately evaluated, but symmetry in the temporal region cannot be appropriately evaluated due to the asymmetrical reference line
Solution Approach 1:
The fundus image is divided into multiple regions (nasal region and temporal region) with different reference lines for symmetry evaluation. Each region has its own optimized reference line configuration, allowing accurate symmetry assessment in both regions simultaneously by segmenting the evaluation approach rather than using a single universal reference line
Solution Approach 2:
Different reference line configurations are applied to different regions of the fundus image. The nasal region uses one reference line orientation while the temporal region uses another, optimizing the symmetry evaluation for each specific region's anatomical characteristics rather than applying a uniform reference system
Data Source
AI summary
An information processing apparatus according to the present disclosure includes a transformation unit configured to transform a first region and a second region in a fundus image so that an angle formed between a first straight line and a second straight line approaches 180 degrees, the first and second regions being defined by the first straight line and the second straight line, the second region being larger than the first region, the first straight line passing through a first feature portion related to a macula in the fundus image and being located on a temporal side, the second straight line passing through the first feature portion and a second feature portion related to an optic disc in the fundus image and being located on a nasal side.