X-Ray Target Presentation Using Virtual 3D Image Fusion
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Solution Overview
Problem
The limited field of view and distortion issues in X-ray imaging due to the fixed position of a single camera component and mismatched coordinate systems in existing X-ray imaging systems hinder complete observation and accurate region demarcation.
Innovation Solution
Utilizing multiple 3D images with respective camera coordinate systems to generate a virtual 3D image with the X-ray source as the origin, followed by converting it into a 2D image, which includes accentuation regions for improved viewing and region demarcation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single camera component is used to photograph the imaging target, then the device complexity is reduced, but the field of view is limited and the imaging target cannot be fully observed
Solution Approach 1:
The patent divides the imaging system into multiple camera components (first camera component and second camera component) positioned at different locations on the X-ray generating component. Each camera captures images from its own perspective, and the control device synthesizes these into a composite image that provides a complete view of the imaging target, thereby expanding the field of view without excessive complexity increase.
Solution Approach 2:
The patent transitions from a single 2D image perspective to a multi-dimensional approach by using multiple cameras at different positions and synthesizing their data. This creates a composite view that effectively adds spatial dimensions to the observation, allowing complete coverage of the imaging target from multiple angles simultaneously.
2Device complexity
If a single camera component is arranged at a fixed position, then the device complexity is simplified, but the imaging target cannot be fully observed and the field of view is restricted
Solution Approach 1:
The imaging system is segmented into multiple camera components, each capturing a portion of the imaging target from different positions. The control device then synthesizes these segmented views into a complete composite image, ensuring no part of the imaging target is lost while maintaining manageable device complexity.
Solution Approach 2:
The patent merges the images captured by multiple camera components into a single composite image through coordinate system transformation and image fusion algorithms. This combining process preserves all information from each camera's perspective while presenting a unified complete view of the imaging target.
3Device complexity
If coordinate systems of multiple camera components are not aligned with the X-ray source, then the device complexity is reduced, but distortion occurs in the presented image and region demarcation becomes inaccurate
Solution Approach 1:
The patent introduces a virtual camera component as an intermediary with its coordinate system origin at the X-ray source. This virtual camera serves as a reference frame that mediates between the physical camera components and the final image output, enabling accurate coordinate transformation and eliminating distortion in region demarcation while maintaining manageable system complexity.
Solution Approach 2:
The patent transforms image coordinates from the physical camera components' coordinate systems to the virtual camera component's coordinate system through mathematical parameter transformations. This coordinate system change aligns the imaging data with the X-ray source position, eliminating geometric distortion and improving region demarcation accuracy.
Data Source
AI summary
Techniques are provided for presenting a target in X-ray imaging. The techniques include acquiring N 3D images of an imaging target, with each 3D image being provided with a respective camera coordinate system and N being a positive integer greater than or equal to 2. The techniques also include generating a virtual 3D image on the basis of the N 3D images, with a camera coordinate system of the virtual 3D image taking an X-ray source as the origin, and converting the virtual 3D image into a 2D image. Finally, the technique includes presenting the 2D image. By means of the 2D image, the X-ray imaging target may be fully observed. In addition, distortion, such as warping or deformation, is not present in an imaging region and an automatic exposure region.