X-ray Image Empty Region Darkening for Detail Detectability
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Solution Overview
Problem
X-ray inspection systems face poor detail detectability due to glare effects from high dynamic range images, and reducing the dynamic range results in information loss.
Innovation Solution
The method involves darkening the empty regions of the x-ray image by replacing or modifying the brightness values, using a uniform color, multiplication, or lookup tables, allowing for variable darkening and user control, to enhance detail visibility without information loss.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Difficulty of detecting and measuring
If the dynamic range of the x-ray image is reduced to improve detail visibility, then glare effects are reduced and detail detectability is improved, but information loss occurs and detection accuracy deteriorates
Solution Approach 1:
The patent applies local quality by differentiating between object regions and empty regions in the x-ray image, applying different brightness processing to each. Empty regions are darkened to reduce glare, while object regions maintain their original brightness to preserve detail information. This localized approach allows simultaneous improvement of detail detectability and preservation of image information.
2Illumination intensity
If the brightness of empty regions is reduced to eliminate glare, then operator comfort is improved and detail visibility is enhanced, but the dynamic range of the image is compromised
Solution Approach 1:
The patent segments the x-ray image into object regions and empty regions, allowing independent brightness control for each segment. By identifying and separately processing empty regions (areas without objects), the system can reduce their brightness to eliminate glare while maintaining the full dynamic range information in object regions, thus resolving the contradiction between operator comfort and image adaptability.
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
This approach improves detail detectability by reducing glare, allowing operators to recognize details more clearly without losing image information, and can be adjusted for optimal performance.
Implementation Method 1
an image point is the brighter, the less the x-ray beam is attenuated or absorbed at this point of the object during transmission
Data Source
AI summary
A method for improving detail detectability in x-ray images is provided, whereby by means of an x-ray inspection device a positive x-ray image of an object is made, the x-ray image is subdivided into an object region and an empty region, and the empty region of the x-ray image is darkened.