X-Ray Image Stitching Across Overlapping Regions With Dual-Mode Source Motion
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Solution Overview
Problem
Current X-ray imaging systems face challenges in accurately capturing whole-body images, particularly when different regions require varying imaging techniques, such as rotating and translating the X-ray source, leading to inaccurate or incomplete medical images that do not meet diagnostic needs.
Innovation Solution
An image stitching method that divides the imaging region into two parts with an overlapping portion, using both rotational and translational movements of the X-ray source to acquire and stitch X-ray images, ensuring comprehensive coverage and accuracy by combining the advantages of both methods.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the X-ray source uses only rotational movement to capture images, then the imaging process is simple, but the coverage of whole-body regions is incomplete
Solution Approach 1:
The patent combines rotational movement and translational movement of the X-ray source to achieve comprehensive whole-body imaging. The rotational movement captures images of certain body regions while the translational movement captures other regions, and the two movements are merged in the control method to ensure complete coverage of the imaging area.
Solution Approach 2:
The patent dynamically adjusts the movement mode of the X-ray source based on the imaging requirements. The system switches between rotational movement and translational movement depending on the region being imaged, making the movement system adaptive and dynamic rather than static or single-mode.
2Measurement precision
If the imaging region is divided into multiple regions with different movement modes, then the imaging precision is improved, but the system complexity increases
Solution Approach 1:
The patent divides the overall imaging region into multiple sub-regions, where each sub-region is imaged using the most appropriate movement mode (rotational or translational). This segmentation allows each region to be optimized independently, improving overall imaging precision while managing system complexity through modular region handling.
Solution Approach 2:
The patent applies different movement modes to different local regions of the imaging area. Certain regions use rotational movement while others use translational movement, optimizing the imaging quality for each specific region based on its characteristics rather than applying a uniform approach.
3Area of stationary object
If both rotational and translational movements are used, then the comprehensive coverage is achieved, but the control difficulty increases
Solution Approach 1:
The patent implements a control method that monitors the imaging progress and automatically adjusts the movement mode between rotational and translational based on the current state. This feedback mechanism simplifies operation by reducing manual intervention while achieving comprehensive coverage through intelligent movement management.
Solution Approach 2:
The control system automatically manages the complexity of coordinating rotational and translational movements without requiring complex manual operation. The system serves itself by autonomously determining when to switch between movement modes and how to coordinate them, reducing the operational burden on users.
Data Source
AI summary
Provided in the present application are an image stitching method for an X-ray imaging system, an X-ray imaging method, and X-ray imaging systems. The X-ray imaging system includes an X-ray source, and the image stitching method includes dividing an imaging region of a subject under examination into a first region and a second region, the first region and the second region having an overlapping portion; acquiring a first quantity of X-ray images of the subject under examination by rotating the X-ray source in the first region; acquiring a second quantity of X-ray images of the subject under examination by translating the X-ray source in the second region; and performing image stitching on the first quantity of X-ray images and the second quantity of X-ray images to acquire a medical image of the subject under examination.