Endoscopic Viewpoint Tracking with Trackability Gating
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Solution Overview
Problem
In endoscopy, when an endoscopic image includes unknown structure regions, the accuracy of estimating the viewpoint of the endoscope is reduced, leading to potential incorrect notifications of the endoscope's traveling direction.
Innovation Solution
An information processing apparatus that acquires an endoscopic image, estimates the trackability of the endoscope's viewpoint, and temporarily stops tracking in cases where the viewpoint is not trackable, resuming tracking only when the viewpoint becomes trackable again.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If viewpoint tracking is performed continuously from endoscopic images, then real-time navigation information can be provided, but incorrect tracking results occur when unknown structure regions are present
Solution Approach 1:
The system performs preliminary estimation of trackability before attempting viewpoint tracking. By evaluating whether the endoscopic image contains unknown structure regions that would compromise tracking accuracy, the system decides in advance whether to initiate tracking or wait for suitable imaging conditions, thereby preventing incorrect tracking results while maintaining operational efficiency
2Measurement precision
If tracking is stopped when unknown structure regions are detected, then estimation accuracy is maintained, but navigation information delivery is delayed
Solution Approach 1:
The system continuously monitors the endoscopic images for the presence of unknown structure regions and provides feedback to the tracking process. When trackability is compromised, the system pauses tracking and waits for improved imaging conditions, then resumes tracking once suitable images are captured. This feedback mechanism ensures high measurement precision while minimizing time loss by quickly resuming tracking when conditions improve
Data Source
AI summary
An information processing apparatus acquires an endoscopic image and estimates whether or not a viewpoint of an endoscope that has captured the endoscopic image is trackable from the endoscopic image. In a case where it is estimated that the viewpoint of the endoscope is not trackable, the information processing apparatus temporarily stops tracking of the viewpoint of the endoscope until the endoscopic image, from which it is estimated that the viewpoint of the endoscope is trackable, is acquired.