X-ray Imaging Filter and Image Processing for Dose Reduction
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Solution Overview
Problem
Current X-ray imaging technologies face challenges in reducing the X-ray dose incident on objects while maintaining image quality, particularly in regions of interest (ROI) and non-ROI areas, leading to degraded image quality in non-ROI areas.
Innovation Solution
An X-ray imaging apparatus that includes an X-ray generator, a filter with an open and closed area to adjust X-ray doses, and an image processing unit to register and synthesize frame images, adjusting brightness and contrast, and removing noise to enhance image quality in non-ROI areas, ensuring the X-ray dose is reduced in non-ROI areas while maintaining clarity in ROI areas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If X-ray dose is reduced in non-ROI areas, then safety is improved, but image quality in non-ROI areas deteriorates
Solution Approach 1:
The patent applies local quality by differentiating treatment between ROI and non-ROI areas. A filter is positioned to selectively reduce X-ray dose in non-ROI areas while maintaining full dose in ROI areas. Additionally, image processing is applied specifically to non-ROI areas to compensate for the reduced dose, thereby maintaining overall image quality while reducing harmful radiation exposure in non-critical regions.
2Manufacturing precision
If image processing is applied to non-ROI areas, then image quality is improved, but device complexity increases
Solution Approach 1:
The patent segments the image processing into distinct functional units: a filter positioning unit that spatially separates ROI and non-ROI areas, an image processing unit that applies specific processing to non-ROI areas, and integrates these with the existing X-ray imaging system. This segmentation allows targeted processing without requiring complete system redesign, thereby improving image quality in non-ROI areas while controlling overall device complexity.
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
The solution effectively reduces the total X-ray dose incident on objects while improving image quality in non-ROI areas to match that of ROI areas, minimizing image degradation and enhancing overall image clarity.
Implementation Method 1
An X-ray imaging apparatus is an apparatus capable of obtaining an internal image of an object by radiating X-rays onto the object and collecting the X-rays transmitted through the object
Implementation Method 2
a filter configured to adjust an X-ray dose of the X-rays incident on the ROI and the non-ROI
Data Source
AI summary
An X-ray imaging apparatus is provided. The X-ray imaging apparatus includes an X-ray generator configured to radiate X-rays onto an object having a region of interest (ROI) and a non-ROI, a filter configured to adjust an X-ray dose of the X-rays incident on the ROI and the non-ROI, an X-ray detector configured to detect the X-rays transmitted through the object and convert the X-rays into X-ray data, and an image processing unit configured to obtain a frame image using the X-ray data, register the obtained frame image to a previous frame image, synthesize the frame image and the previous frame image, and generate a reconstructed frame image.