Ophthalmic Isoline Overlay for Correlating Eye Tissue Measurements
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Solution Overview
Problem
Existing ophthalmic technologies struggle to intuitively represent and correlate different types of measurement data from an examinee's eye, making it difficult for users to understand the condition of the eye's tissue effectively.
Innovation Solution
An ophthalmic information processing method that generates a superimposed map by combining isoline maps and wireframe isoline maps to represent different measurement data types, such as blood vessel and layer thickness information, allowing for intuitive understanding of tissue conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If multiple types of measurement data (tissue thickness, blood vessel density) are displayed separately as individual maps, then each data type can be visualized clearly, but the correlation between different data types becomes difficult to understand
Solution Approach 1:
The patent merges multiple separate measurement data visualizations (tissue thickness map, blood vessel density map) into a single superimposed map. The first isoline map represents tissue thickness with filled regions, while the second isoline map represents blood vessel density with wireframe lines. By superimposing these maps, the system preserves clear visualization of each data type while enabling users to perceive correlations between different measurement parameters simultaneously.
2Loss of information
If both isoline maps are displayed with full filling to show all data details, then complete information is provided, but the visual clarity and ease of perception deteriorates due to overlapping patterns
Solution Approach 1:
The patent applies different display qualities to different data types within the same visualization system. The first isoline map (tissue thickness) uses filled regions with color coding, while the second isoline map (blood vessel density) uses wireframe lines without filling. This local differentiation in display quality allows each data type to be represented optimally for its characteristics, preventing visual confusion while maintaining complete information presentation.
Solution Approach 2:
The patent introduces an intermediary representation strategy where the second isoline map uses wireframe lines as a mediator layer overlaid on the filled first isoline map. This wireframe representation acts as a visual mediator that conveys blood vessel density information without interfering with the tissue thickness visualization, enabling users to perceive both detailed information and overall patterns simultaneously.
Data Source
AI summary
An ophthalmic information processing method includes: acquiring first distribution data representing two-dimensional distribution of first measurement data of examinee's eye-tissue; acquiring second distribution data representing two-dimensional distribution of second measurement data of a measurement target different from that of the first measurement data in the examinee's eye tissue, the two-dimensional distribution being related to a region overlapping with that of the first distribution data; generating a first isoline map in which pixels in a closed section enclosed by an isoline are filled with a color or density level in accordance with a value of the first measurement data, the first isoline map representing the first distribution data; generating a wireframe second isoline map in which a closed section enclosed by adjacent isolines are not filled, the second isoline map representing the second distribution data; and generating a superimposed map by superimposing the first isoline map and the second isoline map.