Infrared Visible Image Blending Transition Zone
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Solution Overview
Problem
Existing methods for combining infrared (IR) and visible light (VL) images struggle to provide clear, interpretable results due to hard transitions and noise, which distract from essential information in the image.
Innovation Solution
The method involves determining pixel coordinates based on selection rules and applying mixing rules to generate enhanced combined images with smooth transitions between IR and VL data, using techniques like temperature thresholding and mathematical functions to assign pixel values, thereby improving visual appearance and interpretability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If temperature thresholding is used to assign pixel values, then the interpretability of temperature information is improved, but hard transitions between different image data types occur which distract from essential information
Solution Approach 1:
The patent changes the parameter of transition sharpness by introducing a transition zone around the temperature threshold. Instead of abrupt binary assignment, pixels within the transition zone have their visibility parameter gradually adjusted based on their distance from the threshold, creating a smooth transition that eliminates distracting hard edges while preserving temperature interpretability.
Solution Approach 2:
The patent applies different processing qualities to different spatial regions: pixels clearly above or below the threshold receive standard binary assignment for clear interpretability, while pixels within the transition zone receive graduated assignment with smooth transitions. This local differentiation resolves the contradiction by applying appropriate processing quality to each region.
2Measurement precision
If global pixel reassignment is performed when temperature thresholds change, then temperature information accuracy is improved, but visual distraction and noise increase
Solution Approach 1:
The patent introduces a transition zone parameter that gradually adjusts pixel visibility rather than abrupt global reassignment. When thresholds change, pixels within the transition zone have their visibility parameter smoothly adjusted based on distance from the threshold, reducing visual distraction while maintaining temperature accuracy.
3Illumination intensity
If color or grey scale mapping is applied to IR data, then visual appearance is improved, but distracting color information is introduced that hinders correct interpretation
Solution Approach 1:
The patent applies different color treatment strategies to different regions: the transition zone uses graduated color mixing that smoothly blends between color palettes, while regions clearly above or below thresholds use standard color mapping. This local differentiation improves visual appearance without introducing distracting color information in critical interpretation areas.
Data Source
AI summary
There is provided a method and an arrangement for generating a combined image having an enhanced transition between image areas each representing a different type of image information. The method may include: determining a set of pixel coordinates, wherein the set of pixel coordinates partly overlaps at least one area in the combined image wherein the pixel values represent image information according to a first type of image information; and/or wherein the set of coordinates partly overlaps at least another area in the combined image wherein the pixel values represent image information according to a second type of image information, dependent on a selection rule; and generating a new combined image by assigning pixel values to the pixels having coordinates comprised in the determined set of pixel coordinates dependent on a mixing rule and the pixel values of the corresponding coordinates of the combined image.