Reconstruction Plane Adjustment for Digital Radiology Parallax Errors
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Solution Overview
Problem
In digital radiography, especially when imaging large body areas, the detector limits the anatomically displayable area, leading to imaging errors due to parallaxes and the three-dimensionality of objects, resulting in incorrect displays in combination images when the structure of interest spans multiple reconstruction planes, such as the spinal column with significant vertical distance between regions.
Innovation Solution
A device and method for fine adjustment of the reconstruction plane in digital combination images, utilizing an interface for overlapping individual images, a distance controller to set a distance value, and a processing unit to shift images based on this value, allowing for dynamic adjustment of reconstruction planes to align with the object's anatomy, particularly useful for complex anatomies like the spinal column.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a single fixed reconstruction plane is used for combining individual images, then the image combination process is simple, but imaging errors occur due to parallaxes and three-dimensionality when structures span multiple planes
Solution Approach 1:
The patent implements dynamic reconstruction plane adjustment by allowing the reconstruction plane to be shifted relative to the detector plane based on anatomical structures of interest. The system calculates optimal shift distances for combining individual images, transforming the static single-plane combination into a dynamic multi-plane combination process that adapts to different anatomical regions.
Solution Approach 2:
The patent introduces an additional dimension of adjustment by adding the reconstruction plane shift distance parameter beyond the standard fixed detector plane combination. This allows images to be combined from multiple depth planes, effectively adding a third dimension (depth/distance) to the traditional two-dimensional image combination process, thereby resolving parallax errors for three-dimensional anatomical structures.
2Measurement precision
If the reconstruction plane is adjusted to accommodate different anatomical regions, then imaging accuracy improves, but the operation becomes more complex
Solution Approach 1:
The system implements automatic calculation of optimal reconstruction plane shift distances based on the anatomical structures being imaged. The control device autonomously determines the appropriate shift values for combining individual images, eliminating the need for manual adjustment by the operator and maintaining ease of operation while achieving high anatomical accuracy.
Solution Approach 2:
The patent introduces adjustable parameters for reconstruction plane shift distance that can be automatically calculated or manually set. By changing these parameters dynamically during the imaging process, the system adapts to different anatomical regions and structures, improving measurement precision without permanently complicating the operational interface.
Data Source
AI summary
A method and a device for fine adjustment of the reconstruction plane of a digital combination image from individual images of a digital radiology system. The device includes an interface for providing individual images of an object. The individual images have overlapping regions with one another. A distance controller, with which the distance A of the individual images can be changed. A processing unit calculates a current combination image from the individual images. The individual images are each shifted by the distance A in relation to one another. A display unit displays the current combination image from the individual images. There is also described an image evaluation system and/or digital radiology system which includes the device.