Adaptive Overlay Color Adjustment for X-ray Imaging Visibility
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Solution Overview
Problem
Existing X-ray imaging systems face challenges in presenting overlays and indications clearly on the user interface, particularly when the patient's clothing has a similar color to the default overlay color, making it difficult for users to accurately position the patient relative to the imaging system.
Innovation Solution
The system adaptively adjusts the presentation color of overlays by determining the dominant color of the Region of Interest (ROI) within the camera image and selecting a complementary or high-contrast color for the overlay, ensuring improved visibility regardless of the patient's clothing color.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If a default color overlay is used on the camera image, then the overlay provides necessary information about imaging system positioning, but the overlay becomes difficult to discern when the patient's clothing color matches or contrasts heavily with the overlay color
Solution Approach 1:
The system automatically detects the dominant color in the camera image background (patient clothing) and dynamically adjusts the overlay color to provide optimal contrast. This is achieved by analyzing the color spectrum of the background and selecting an overlay color from a predefined palette that maximizes visibility against the detected background color, thereby resolving the contradiction between providing clear overlay information and adapting to varying clothing colors.
Solution Approach 2:
The system changes the color parameter of the overlay based on real-time analysis of the camera image. By continuously monitoring the background color and adjusting the overlay color parameter accordingly, the system maintains optimal visibility across different clothing colors without requiring manual intervention, thus adapting to varying conditions while preserving information clarity.
2Loss of information
If the user manually selects overlay color to improve visibility, then visibility may be improved for specific cases, but the process becomes time-consuming and users may forego color selection
Solution Approach 1:
The system performs automatic color analysis and overlay color selection without requiring user intervention. The imaging system itself analyzes the camera image, determines the dominant background color, and selects the appropriate overlay color automatically, thereby eliminating the time-consuming manual color selection process while maintaining optimal visibility.
Solution Approach 2:
The system implements a feedback loop where the camera image is continuously analyzed, the overlay color is adjusted based on the analysis, and the result is displayed for verification. This automated feedback mechanism ensures optimal visibility is achieved rapidly without requiring manual user input, thus resolving the time loss issue while maintaining information clarity.
3Loss of information
If the overlay color is changed to improve visibility against the background, then visibility improves, but the selection of inappropriate color by the user can still result in poor visibility
Solution Approach 1:
The system replaces the manual mechanical process of user color selection with an automated optical and computational analysis system. The system uses color spectrum analysis and algorithmic color selection to determine the optimal overlay color, eliminating human subjectivity and inconsistency. This substitution ensures reliable and consistent overlay visibility by base on objective color analysis rather than user preference.
Data Source
AI summary
According to one aspect of an exemplary embodiment of the disclosure, a system and method for adaptively altering the presentation color for an overlay to be presented along with a camera image on a display of a radiography system includes the steps of providing an imaging system having a radiation source, a detector, and a camera aligned with the detector. A control processing unit including image processing circuitry is operably connected to the camera to generate a camera image(s) of the subject and the detector. The camera image analyzed by the image processing circuitry to determine the region of interest (ROI) within the camera image and the dominant color(s) present in the ROI, such that presentation color for the overlay can be automatically adjusted to a complementary color for monochromatic camera images or to a high contrast color for chromatic camera images to increase the visibility of the overlay.