Uniform Color Space Image Blending to Prevent Fluorescence Oversaturation
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Solution Overview
Problem
Existing methods struggle to combine background and fluorescence images effectively, preserving information while ensuring natural color transitions and avoiding oversaturation, particularly due to the significant difference in intensity between reflected light and fluorescence.
Innovation Solution
A data processing device operates in a uniform color space to compute output colors by retrieving background and overlay color coordinates, determining luminance and intensity ratios, and calculating points on luminance and overlay color lines to ensure natural color transitions and prevent oversaturation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the background color image is mixed with the fluorescence image using conventional methods, then the fluorescence information is highlighted, but the color transitions become unnatural and oversaturation occurs
Solution Approach 1:
The patent transforms color values from a conventional color space to a uniform color space where luminance and chroma are independently controlled. This parameter transformation allows linear interpolation between background and fluorescence colors without causing oversaturation or unnatural transitions, while preserving the intensity information from the fluorescence image.
Solution Approach 2:
The patent introduces a luminance dimension separate from chroma in the uniform color space. By independently controlling luminance (brightness) and chroma (color purity), the method can maintain natural color transitions while preserving fluorescence information, avoiding the oversaturation that occurs in conventional color spaces.
2Reliability
If the fluorescence intensity is increased to improve visibility, then the fluorescing regions become more prominent, but the natural appearance of the image is compromised
Solution Approach 1:
The patent uses a uniform color space transformation that separates luminance from chroma. This allows the fluorescence intensity (luminance) to be enhanced independently without increasing chroma (color saturation), thereby improving visibility while maintaining natural appearance and avoiding oversaturation.
3Device complexity
If conventional color mixing is used to combine background and fluorescence images, then the processing is simple, but information loss and artifacts are introduced
Solution Approach 1:
The patent transforms colors to a uniform color space where linear interpolation produces natural results. This parameter transformation enables simple pixel-wise mixing while preserving visual information, avoiding the artifacts and information loss that occur with conventional color mixing methods.
Data Source
AI summary
A data processing device is configured to retrieve background color coordinates of a background color, retrieve overlay color coordinates of an overlay color, retrieve a light intensity value, compute a luminance line extending from the overlay color coordinates to an end point, determine a first point on the luminance line based on a difference between a maximum luminance value and a luminance of the background color coordinates and a difference between the luminance and a minimum luminance, compute an overlay color line that extends straight from the background color coordinates to the first point, and determine a second point on the overlay color line based on a difference between a maximum light intensity value and the light intensity value and a difference between the light intensity value and a minimum light intensity value, and output color coordinates of the second point as an output color of an output pixel.