Endoscopic Lesion Heat Map Overlay With Dual-Threshold Display
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Solution Overview
Problem
Endoscopic images become difficult to see when a heat map is superimposed, and existing methods fail to provide a clear indication of lesion possibility.
Innovation Solution
An endoscopic examination support apparatus that detects lesion candidates, generates a heat map representing lesion possibility by color, and superimposes areas with different thresholds in distinct display modes to ensure visibility and convey lesion probability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a heat map is superimposed on the endoscopic image to show lesion areas, then the lesion detection capability is improved, but the visibility of the original endoscopic image deteriorates
Solution Approach 1:
The patent applies different display modes (first display mode and second display mode) to different regions of the endoscopic image based on their lesion probability. High-probability regions are displayed with one mode while low-probability regions use another mode, allowing the heat map to be visible where needed while preserving original image visibility where not needed.
Solution Approach 2:
The patent dynamically adjusts the display mode of different regions based on their lesion probability thresholds. The system automatically switches between display modes for different areas of the image, making the heat map information adaptive and context-dependent rather than uniformly applied.
2Device complexity
If a single threshold is used for heat map display to simplify the system, then the device complexity is reduced, but the ability to convey lesion probability information is worsened
Solution Approach 1:
The patent segments the endoscopic image into multiple regions based on lesion probability thresholds. By dividing the image into high-probability and low-probability regions with different display modes, the system preserves detailed lesion probability information that would be lost with a single threshold approach.
Data Source
AI summary
In the endoscopic examination support apparatus, the video acquisition means acquires an endoscopic video captured by an endoscope. The lesion detection means detects a lesion candidate from the endoscopic video. The heat map generation means generates a heat map which represents a lesion possibility of the lesion candidate included in the endoscopic video by a color. The display control means superimposes and displays an area where the lesion possibility is equal to or higher than a first threshold on the endoscopic video in a first display mode, and superimposes and displays an area where the lesion possibility is equal to or higher than a second threshold on the endoscopic video in a second display mode.