X-ray Apparatus Movable Arm for Distortion-Free Stitching
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Solution Overview
Problem
Existing X-ray imaging technologies face challenges in capturing large-area images without distortion, particularly due to differences in X-ray incident angles during image stitching, which lead to misalignment and image distortion when combining multiple images.
Innovation Solution
An X-ray apparatus with a movable arm and controller that adjusts the X-ray incident angles and detector positions to ensure consistent angles and distances across multiple images, allowing for precise alignment and distortion-free image stitching.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If image stitching technique is used to obtain images of larger area, then the imaging area is improved, but image distortion occurs due to differences in X-ray incident angles
Solution Approach 1:
The patent applies parameter changes by dynamically adjusting the X-ray incident angle for each imaging position. The controller calculates the appropriate incident angle based on the detector's position and moves the source accordingly, ensuring that the incident angle is optimized for each specific imaging location. This parameter adjustment prevents image distortion during stitching while maintaining the ability to capture large-area images.
Solution Approach 2:
The patent implements dynamics by making the X-ray source position variable rather than fixed. The source can move to different positions based on the required imaging area and the detector's location. This dynamic positioning allows the system to adapt to different imaging scenarios, maintaining consistent incident angles across multiple images for accurate stitching while expanding the overall imaging coverage.
2Device complexity
If the X-ray source and detector are fixed to an arm, then the occupation space is reduced and cost is lowered, but the degree of freedom is limited and range of movement is restricted
Solution Approach 1:
The patent applies segmentation by separating the source and detector from the arm structure. Instead of fixing both to the arm, the source is positioned independently and can move freely in three-dimensional space, while only the detector remains attached to the arm. This segmentation provides the source with additional degrees of freedom for positioning, expanding the range of movement without significantly increasing the occupation space or complexity of the overall system.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables the capture of highly accurate, distortion-free images of large areas by maintaining consistent X-ray incident angles and detector positions, improving the quality of stitched images.
Implementation Method 1
a source for emitting X-rays to an object; a detector for detecting the X-rays penetrating the object
Data Source
AI summary
An X-ray apparatus includes: a source configured to emit X-rays to an object; a detector configured to detect the X-rays that have penetrated the object; an arm configured to connect the source to the detector and move centering on a stand fixed to a bottom; a controller configured to control a movement of the arm so that the controller changes a direction of the X-rays, which are radiated to the object, and the arm rotates on the stand to move the detector in a first direction, to obtain images for a plurality of parts of the object; and an image processor configured to obtain the images for the plurality of parts of the object based on the X-rays detected by the detector.