Image Registration Boundary Display for Handheld Camera Alignment
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Solution Overview
Problem
Existing methods for initial registration between a target object in a video and a simulation image are challenging due to difficulty in holding a camera still, making it hard to manually align the target object and simulation image, especially when the camera is handheld, leading to movement of the target object in the displayed video.
Innovation Solution
An image registration device that acquires a video and a simulation image, displays a boundary image instead of the simulation image during initial registration, allowing for easier alignment by enabling parallel movement, rotational adjustment, and enlargement/reduction of the boundary image to match the target object, facilitating first and second registrations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If a simulation image is displayed during initial registration, then registration information is provided, but the simulation image obstructs the target object making alignment difficult
Solution Approach 1:
The display is segmented into multiple regions: a first region displaying the video with the target object, and a second region displaying the simulation image with registration marks. This spatial segmentation allows the operator to view both the target object and registration information simultaneously without mutual obstruction, enabling easy alignment while maintaining access to registration data.
2Ease of operation
If the camera is held by hand for imaging, then mobility is improved, but the target object moves in the displayed video making registration difficult
Solution Approach 1:
The system provides real-time visual feedback by displaying both the video feed and simulation image with registration marks simultaneously on the display device. This allows the operator to see the current alignment status and make immediate adjustments to the camera position or orientation, enabling precise registration even while手持ing the camera for mobility.
3Loss of information
If the simulation image is displayed overlapped on the target object, then spatial relationship is shown, but the target object cannot be seen clearly for alignment
Solution Approach 1:
The display is divided into different spatial regions: the first region shows the video with the target object, and the second region shows the simulation image with registration marks. This dimensional separation in the display space allows both the target object and simulation image to be visible simultaneously without overlapping, enabling clear detection of the target object while maintaining spatial relationship information.
Data Source
AI summary
There is provided an image registration device, method, and program that enable easy initial registration between a target object included in a video and a simulation image. A first registration unit performs first registration that is initial registration between an intraoperative video and a simulation image. At this time, a boundary image showing the boundary of the simulation image is displayed on a display so as to be superimposed on the intraoperative video. An operator performs registration between a target object included in the intraoperative video and the boundary image. After the end of the first registration, a second registration unit performs second registration between the simulation image and the target object included in the intraoperative video based on the result of the first registration.