Calibration Member Guide Pattern for Image Alignment
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Solution Overview
Problem
Existing techniques for measuring energy using color forming members, such as PRESCALE, often result in inappropriate images due to improper inclusion of the color forming member and calibration member within the angle of view or imaging with inclination, leading to inadequate correction of image color, distortion, inclination, size, and ultimately, inaccurate energy measurement.
Innovation Solution
A calibration member with an imaging target surface featuring a central region, pairs of patch groups extending in different directions, blank regions between patch groups, and figures in the blank regions, which aids in calibration by ensuring appropriate inclusion of the calibration member and color forming member within the image view, thereby correcting for distortions and ensuring accurate energy measurement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a user performs imaging of a color forming member and a calibration member, then energy measurement can be performed, but appropriate images may not be obtained when the color forming member and calibration member are not appropriately included in the angle of view or are imaged with inclination
Solution Approach 1:
The calibration member includes a guide pattern with guide lines and guide shapes that preliminarily guide the user on how to properly position and include both the calibration member and color forming member within the angle of view before imaging occurs, ensuring reliable images are obtained
Solution Approach 2:
The guide pattern acts as an intermediary element between the user and the imaging process, providing visual cues through guide lines and guide shapes that mediate the positioning relationship between the calibration member, color forming member, and camera angle of view
2Ease of operation
If the color forming member and calibration member are not appropriately included in the angle of view or imaged with inclination, then imaging can still be performed, but correction of color, distortion, inclination, size, and other image parameters cannot be appropriately performed
Solution Approach 1:
The guide pattern provides preliminary visual guidance through guide lines and guide shapes that show users the correct positioning and inclusion requirements before imaging, making it easy to obtain images suitable for accurate correction without requiring complex positioning knowledge
3Productivity
If correction of image color, distortion, inclination, and size is not performed appropriately, then imaging can be completed, but measurement of the amount of energy cannot be appropriately performed
Solution Approach 1:
By preliminarily guiding proper image acquisition through the guide pattern, the system ensures that images are obtained in the correct state from the start, enabling appropriate correction and energy measurement without requiring additional corrective steps that would reduce productivity
Data Source
AI summary
A calibration member includes an imaging target surface that includes a central region, a pair of first patch groups including a plurality of patches that extend in a first direction and facing each other with the central region interposed therebetween, a pair of second patch groups including a plurality of patches that extend in a second direction intersecting the first direction and facing each other with the central region interposed therebetween, a blank region disposed between a first patch group and a second patch group included in at least one of combinations of the first patch group and the second patch group that are adjacent to each other in a circumferential direction of the central region, and a figure disposed in the blank region, and the calibration member is for performing, by using the patches, calibration with respect to an image obtained by imaging the imaging target surface.