Medical Image Processing Device Dynamic Range Adjustment
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Solution Overview
Problem
Existing medical image processing technologies fail to consider the imbalance between tones of respective color components during medical operations, leading to suboptimal dynamic range adjustment and potential defects in visual information, such as clipped whites or blacks, especially when observing the inside of a living body where specific color components like red significantly influence the tone.
Innovation Solution
A medical image processing system that differentially adjusts the dynamic range of specific color components relative to other color components by acquiring and combining image signals with varying exposures, using combination weights based on the intensity of the specific color component, and performing nonlinear corrections to generate a clear and balanced color image.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If dynamic ranges of multiple color components are uniformly adjusted, then overall image quality is improved, but the dynamic range of specific color components becomes suboptimal
Solution Approach 1:
The patent segments the dynamic range adjustment process by separating specific color components from other color components. The image processing device performs differential dynamic range adjustment where specific color components (e.g., red component in fluorescence observation) are adjusted differently from other color components, allowing optimized dynamic range for each category based on observation conditions
Solution Approach 2:
The patent applies local quality by making the dynamic range adjustment specific to certain color components rather than uniformly adjusting all color components. The device identifies which color components are meaningful for the current observation type and applies targeted adjustment to those specific components, ensuring optimal tone quality where it matters most
2Loss of information
If existing technology prevents clipped whites or blacks, then visual information quality is improved, but imbalance between color component tones remains
Solution Approach 1:
The patent segments the color component processing by identifying and separately handling specific color components that are meaningful for the current observation type. Instead of treating all color components uniformly, the device segments them into specific (meaningful) and other (less meaningful) categories, applying different processing strategies to each segment
Solution Approach 2:
The patent applies local quality by making the clipping prevention and dynamic range adjustment specific to certain color components. The device focuses its processing efforts on specific color components that carry meaningful information for the observation type, rather than applying uniform processing to all color components, thereby achieving better color tone balance
Data Source
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AI summary
[Object] To reduce a risk that a tone of a specific color component of a subject to be observed in medical operation is defective. [Solution] There is provided a medical image processing device including: a signal acquisition unit configured to acquire a first specific component image signal with a first exposure for a specific color component, a second specific component image signal with a second exposure different from the first exposure for the specific color component, and two non-specific component image signals corresponding to two color components different from the specific color component; a combination unit configured to generate a specific component combination image signal by combining the first specific component image signal and the second specific component image signal by using a weight based on an intensity of the specific color component; and a color image generation unit configured to generate a color image signal on a basis of the specific component combination image signal generated by the combination unit and the two non-specific component image signals.