Panoramic Radiography Artifact Removal via Reconstruction Data Analysis
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Solution Overview
Problem
Panoramic radiography images often suffer from artifacts, particularly opposing jaw artifacts, which complicate diagnoses and may require increased radiation exposure or decreased image quality when using traditional methods to address these issues.
Innovation Solution
A device and method for editing panoramic radiography images by receiving and analyzing reconstruction data to identify and edit sections with artifacts, allowing for improved image quality without increasing radiation exposure, using an input interface, evaluation unit, and image editing unit to mark and correct artifact sections within the image.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the machine trajectory is adjusted to reduce opposing jaw artifacts, then artifact reduction is achieved, but radiation exposure increases and image quality decreases
Solution Approach 1:
The invention extracts and removes opposing jaw artifacts from the panoramic radiography image through image processing. The system identifies artifact regions caused by the opposing jaw and selectively eliminates them while preserving the diagnostic quality of the primary jaw structures, thus removing harmful factors without compromising image quality or requiring trajectory adjustments
Solution Approach 2:
The invention changes parameters of the image processing pipeline, specifically applying artifact reduction algorithms that modify image data to eliminate opposing jaw artifacts. By adjusting processing parameters rather than acquisition parameters, the system achieves artifact reduction while maintaining optimal radiation exposure and image quality
2Object-affected harmful factors
If three-dimensional methods are used to generate images without opposing jaw involvement, then opposing jaw artifacts are eliminated, but radiation exposure increases and resolution decreases
Solution Approach 1:
The invention creates a processed copy of the original panoramic radiography image through image processing. Rather than acquiring new three-dimensional data with additional radiation, the system generates an artifact-reduced version of the existing two-dimensional image by identifying and removing opposing jaw artifacts through computational methods
Solution Approach 2:
The invention replaces the mechanical approach of using three-dimensional imaging systems with a computational image processing approach. Instead of physically acquiring new images with different trajectories or 3D systems that require higher radiation doses, the system uses software-based artifact reduction to achieve the same goal with the original lower-radiation image
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 enhances diagnostic accuracy by reducing or eliminating artifacts, allowing for more precise evaluation of panoramic radiography images without generating additional images or increasing radiation exposure, thereby improving the reliability of dental diagnostics.
Implementation Method 1
X-ray examinations have been a widely-used standard procedure for many years particularly in medicine but also in industry as well as in other fields of application. X-rays are absorbed differently in structures with various thicknesses within an examination object so that an image of an inner structure can be generated.
Implementation Method 2
an X-ray source is usually attached to one side of an arm and an X-ray detector to the other
Data Source
AI summary
A device for editing a panoramic radiography image of an examination object generated by a panoramic X-ray machine, including: an input interface for receiving the panoramic radiography image as well as reconstruction data of the panoramic radiography image, the reconstruction data including information on a course of projection lines of the panoramic radiography image between an X-ray source and an X-ray detector of the panoramic X-ray machine as well as information on an image surface of the panoramic radiography image; an evaluation unit for evaluating the reconstruction data and for determining an image section of the panoramic radiography image that has been generated on the basis of one of the projection lines with two intersection points with the image surface; an image editing unit for editing the panoramic radiography image based on the determined image section; and an output unit for outputting the edited panoramic radiography image.