Image Processing Device Color Mixture Correction
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Solution Overview
Problem
Existing image processing technologies face challenges in reducing color mixture effects in mosaic images, particularly when the amount of color mixture is unidentified, leading to deterioration of image quality and complexity in color mixture correction, especially with complex color filter arrangements.
Innovation Solution
An image processing device and method that acquires lens information to determine if color mixture information is identified or unidentified, and adjusts the processing by reading a second mosaic image with reduced pixel types when information is unavailable, allowing for color mixture correction and synchronization to generate three-layer color data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If color mixture correction is performed on a first mosaic image with complex color filter arrangement, then image quality deterioration due to false signals is suppressed, but the correction process becomes complex and difficult to implement
Solution Approach 1:
The patent segments the color mixture correction process into two distinct paths: one for identified color mixture information and another for unidentified color mixture information. This segmentation allows the system to handle complex color filter arrangements by selecting appropriate processing methods based on available information, thereby suppressing image quality deterioration without implementing an overly complex unified correction process.
Solution Approach 2:
The patent changes the processing parameters based on whether color mixture information is identified or not. When color mixture information is unidentified, the system uses a simplified correction approach; when identified, it applies a more precise correction. This parameter adaptation allows effective color mixture correction across different scenarios without requiring a single complex correction algorithm.
2Measurement precision
If lens information is acquired to determine color mixture information availability, then appropriate color mixture correction can be applied, but the processing flow becomes more complex
Solution Approach 1:
The patent performs preliminary acquisition of lens information before the main color mixture correction process. This preliminary action determines whether color mixture information is identified or not, allowing the system to prepare the appropriate correction method in advance. This approach ensures accurate color mixture correction while organizing the processing flow into clear sequential steps.
Solution Approach 2:
The system uses feedback from lens information acquisition to determine the correction path. The acquired lens information provides feedback about whether color mixture information is available, which then guides the selection of the appropriate correction method. This feedback mechanism ensures precise correction adaptation without creating a complex branching processing flow.
3Reliability
If a second mosaic image with reduced pixel types is read when color mixture information is unidentified, then image quality deterioration is suppressed, but resolution and detail may be reduced
Solution Approach 1:
The patent dynamically adjusts the processing approach based on the availability of color mixture information. When color mixture information is unidentified, the system dynamically selects the path to read a second mosaic image with reduced pixel types, which suppresses false signals while accepting reduced resolution. When color mixture information is identified, the system uses the first mosaic image for higher resolution processing. This dynamic adaptation optimizes image quality reliability based on available information.
Data Source
AI summary
An image processing device according to the invention includes: a lens information acquisition unit; a color mixture information determination unit; mosaic image acquisition unit that, when the color mixture information determination unit determines that the color mixture information is unidentified, reads, from the color imaging element, a second mosaic image obtained by reducing the number of types of first pixels in the first mosaic image which includes a pixel of a first color formed by at least one color and a pixel of a second color formed by at least one color and in which the number of types of first pixels determined by the arrangement of pixels that are adjacent to a first pixel, which is the pixel of the first color, at a minimum pixel pitch in four directions is equal to or greater than 4; a color mixture correction unit; and a synchronization unit.