Multi-Color Image Correction Using Fiducial Mark Alignment
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Solution Overview
Problem
Existing imaging devices require significant labor and time to correct distortion and chromatic aberrations in multiple original images captured under different light source colors to generate a composite image.
Innovation Solution
An image correction method that collectively corrects distortion and chromatic aberrations in multiple original images by setting correction amounts for fiducial marks in reference images of different light source colors, allowing for rapid generation of a composite image.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If individual correction of distortion aberration and chromatic aberration is performed for each original image, then correction precision is improved, but labor hours and processing time increase
Solution Approach 1:
The patent combines distortion aberration correction and chromatic aberration correction into a single unified correction process. Instead of correcting each aberration type separately for each original image, the method uses a single correction amount that simultaneously addresses both aberrations, thereby reducing processing time while maintaining correction precision.
Solution Approach 2:
The correction amount obtained from reference images serves multiple functions: it corrects both distortion aberration and chromatic aberration for all original images captured under different light source colors. This universal correction approach eliminates the need for separate correction processes, reducing labor hours while preserving accuracy.
2Manufacturing precision
If multiple original images are captured and corrected individually, then image quality is improved, but processing time increases
Solution Approach 1:
The patent performs preliminary correction by obtaining correction amounts in advance from reference images before processing the actual original images. These pre-calculated correction amounts are then applied to all original images, eliminating the need for time-consuming individual correction processes while maintaining high image quality.
Solution Approach 2:
The method merges multiple correction operations (distortion correction and chromatic aberration correction) into a single unified correction step, thereby reducing processing time while preserving the quality improvements achieved through comprehensive correction.
3Measurement precision
If separate correction processes are used for distortion and chromatic aberration, then correction accuracy is improved, but device complexity increases
Solution Approach 1:
The patent merges distortion aberration correction and chromatic aberration correction into a single integrated correction process. By using a unified correction amount that addresses both aberration types simultaneously, the method reduces process complexity while maintaining the accuracy that would otherwise require separate correction stages.
Data Source
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AI summary
There is provided an image correction method for correcting multiple original images captured under illumination by multiple different light source colors in generating a composite image by superposing the original images, the image correction method including: (a) a step of obtaining a correction amount for correcting a position of a fiducial mark recognized from a reference image of a specific light source color in reference images of the multiple different light source colors resulting from imaging a member on which the fiducial mark is provided under illumination by the multiple different light source colors to a reference position of the fiducial mark in the reference image of the specific light source color and setting the correction amount by associating the correction amount with the specific light source color; (b) obtaining correction amounts for correcting positions of the fiducial mark recognized from the reference images of other light source colors than the specific light source color to the reference position in the reference image of the specific light source color for the other light source colors and setting the correction amounts by associating the correction amounts with the other light source colors; and (c) when the original images are captured, correcting collectively distortion aberration and chromatic aberration of the original images of the multiple different light source colors using the correction amounts associated with the multiple different light source colors.