OCT Visualization with Virtual Shadows for Spatial Clarity
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Solution Overview
Problem
Current OCT imaging methods in medical settings can overwhelm surgeons with complex data, leading to incorrect interpretations due to the difference between traditional video image data and overlaid two-dimensional OCT images, which can complicate the understanding of spatial relationships and distances within the images.
Innovation Solution
A system and method for visualizing OCT signals using a control unit that generates and displays time-resolved OCT images with virtual shadows, allowing for optimal visualization by creating semantically segmented shadows through virtual irradiation, facilitating better understanding of distances and spatial relationships by using a virtual light source to generate shadows on specific areas of the OCT image.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If two-dimensional OCT images are overlaid on video image data, then depth information is provided, but spatial relationships and distances become difficult to understand
Solution Approach 1:
The patent applies dimensionality change by introducing virtual shadows that create depth cues in a two-dimensional display. The virtual shadows are generated by calculating shadow positions based on the three-dimensional OCT data, effectively adding a visual dimension that helps surgeons perceive spatial relationships and distances between anatomical structures without requiring complex three-dimensional rendering.
2Loss of information
If complex OCT image data is displayed, then anatomical information is provided, but interpretation accuracy decreases
Solution Approach 1:
The patent utilizes color changes by rendering virtual shadows in a manner that distinguishes them from actual anatomical structures. The virtual shadows are displayed with different visual characteristics (such as opacity or color coding) compared to the actual OCT anatomical data, allowing surgeons to easily differentiate between real structures and computational artifacts, thereby maintaining interpretation accuracy while providing comprehensive anatomical information.
3Difficulty of detecting and measuring
If virtual shadows are generated through virtual irradiation, then spatial relationships are clarified, but computational complexity increases
Solution Approach 1:
The patent applies preliminary action by pre-calculating the shadow positions and characteristics based on the three-dimensional OCT data before displaying the images. The control unit calculates the virtual shadow positions by determining where light rays would be blocked by anatomical structures, and these pre-computed shadow information is then efficiently rendered in the final image, reducing real-time computational complexity while maintaining accurate spatial relationship visualization.
Data Source
AI summary
The present invention relates to a system for visualizing OCT signals, comprising a display means designed for the time-resolved display of image data and a control unit, the control unit being configured to receive a time-resolved OCT signal of a selected field of view of a sample from an OCT system, to ascertain a time-resolved OCT image with a virtual shadow on the basis of the OCT signal, with the virtual shadow being generated in object-specific fashion on at least one area of the OCT image by a virtual irradiation of at least one object of the OCT image by means of a virtual light source, and to control the display means to display the time-resolved OCT image on the display means. The present invention also relates to a corresponding method for visualizing OCT signals.