Endoscope Region of Interest Tracking and Repositioning
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Solution Overview
Problem
Conventional endoscopes face challenges in maintaining a region of interest, such as polyps, at the center of the display screen due to the limited field of view and movement of body cavities during procedures, making it difficult for medical practitioners to accurately operate on these areas.
Innovation Solution
A method and system that detect the region of interest, apply transformations to reposition it to a desired location on the display screen, either manually or automatically, using graphical user interfaces, camera calibration, and motorized movements to ensure the region remains centered or at a specified target location.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional endoscopes are used with fixed field of view, then the device complexity is low, but the ease of operation deteriorates because the region of interest cannot be maintained at the center of the display screen
Solution Approach 1:
The endoscope system dynamically adjusts the field of view and repositions the region of interest in real-time based on detected movements of the body cavity. The display screen dynamically updates to keep the region of interest at the center, transforming a static viewing system into an adaptive one that responds to physiological movements.
Solution Approach 2:
The system continuously monitors the position of the region of interest and provides feedback to adjust the field of view and camera positioning. This closed-loop control ensures that the region of interest remains centered on the display screen despite movements in the body cavity, improving ease of operation through automatic compensation.
2Ease of operation
If the field of view is expanded to track moving regions, then the ease of operation improves, but the manufacturing precision deteriorates due to the complexity of maintaining accurate positioning
Solution Approach 1:
The system replaces complex mechanical positioning mechanisms with computational image processing and software-based region tracking. Instead of physically adjusting the camera or scope to follow the region of interest, the system uses algorithms to detect and track the region within the captured images, maintaining precision through software rather than mechanical means.
Solution Approach 2:
The system creates a digital representation or model of the region of interest's position and movement patterns, using this copied information to guide the repositioning of the field of view. This allows the system to track and maintain the region of interest at the display center without requiring direct physical intervention.
3Productivity
If automatic repositioning is implemented, then the productivity improves, but the device complexity increases due to additional automation components
Solution Approach 1:
The endoscope system performs automatic detection and repositioning of the region of interest without requiring external intervention or complex automation components. The system serves itself by using its own imaging capabilities to detect the region and automatically adjusting the field of view to maintain the region at the display center, improving productivity through self-contained automation.
Solution Approach 2:
The system uses the existing imaging and processing capabilities of the endoscope for multiple functions: both for initial detection of the region of interest and for continuous tracking and repositioning. This multi-functionality approach avoids adding separate dedicated components, thereby improving productivity while limiting the increase in device complexity.
Data Source
AI summary
A system and method of repositioning a region of interest within an endoscopic image from a first location to a target location on the display screen of an endoscopy system is provided. The endoscopy system includes an insertion portion having a tip section with at least one viewing element for capturing images of a body cavity having the region of interest. The method includes detecting a region of interest within a body cavity, displaying the region of interest on a display screen in communication with the endoscopy system, marking the region of interest on the display screen, selecting a target location on the display screen, estimating a transformation to be applied to the region of interest, and applying the estimated transformation for causing the region of interest to be displayed at the target location of the display screen.