Moiré Image Display Alignment for Faster Defect Evaluation
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Solution Overview
Problem
Existing image evaluation methods for identifying trouble or failure portions in molded products require manual comparison of numerous images with multiple pieces of characteristic information, leading to low accuracy and increased time and effort, especially when considering both inherent and subject direction information.
Innovation Solution
An image display device and system that aligns and displays multiple moire or reconstructed images in the same direction based on selected characteristic information, including both first and second characteristic information on the inspection target and image direction, facilitating easier evaluation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If multiple images with multiple pieces of characteristic information are captured for each sample, then comprehensive characteristic information is obtained, but the number of images to be compared becomes enormous and evaluation accuracy decreases
Solution Approach 1:
The patent segments the enormous set of images into smaller groups based on characteristic information categories (grating orientation, image orientation, orientation angle, orientation color). By dividing the comparison task into manageable segments organized by characteristic type, the system maintains evaluation accuracy while handling comprehensive information sets.
Solution Approach 2:
The patent introduces a new organizational dimension by grouping images according to their characteristic information types. This creates a multi-dimensional comparison framework where images are arranged not just by sample but also by characteristic category, enabling systematic evaluation without being overwhelmed by the total number of images.
2Adaptability or versatility
If the user performs comparison by imagining characteristic information in his/her head, then flexibility is maintained, but time and effort for characteristic evaluation increases
Solution Approach 1:
The patent introduces an intermediary system (the image display device with automated grouping and display functions) that bridges the user and the large set of images. This intermediary automatically organizes and presents images according to characteristic information, eliminating the need for mental tracking while preserving user control over which characteristics to examine.
Solution Approach 2:
The patent creates visual copies or representations of characteristic information directly on the displayed images or as accompanying data. Instead of requiring users to hold characteristic information in memory, the system displays relevant characteristic data alongside the images, allowing users to reference actual values rather than relying on mental recall.
3Measurement precision
If multiple pieces of characteristic information are displayed together with images, then comprehensive evaluation is enabled, but device complexity increases
Solution Approach 1:
The patent implements a universal display framework that can handle multiple types of characteristic information (grating orientation, image orientation, orientation angle, orientation color) using a single standardized interface. This multi-functional system displays different characteristic types in a consistent manner, reducing the need for separate specialized displays for each characteristic type.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enhances the accuracy and efficiency of characteristic evaluation by aligning and displaying relevant information together, reducing the time and effort required for identifying trouble or failure portions in molded products.
Implementation Method 1
The Talbot effect is a phenomenon in which, when coherent light passes through a first grating in which slits are provided at a constant period, a grating image of the light is formed at a constant period in the traveling direction of the light.
Implementation Method 2
This grating image is called a self-image, and the Talbot interferometer measures a moire fringe generated by slightly shifting a second grating after the second grating is arranged at a position where the self-image is formed.
Data Source
AI summary
An image display device displays a plurality of moire images or reconstructed images to which second characteristic information among characteristic information on a direction including first characteristic information on a direction of an inspection target and the second characteristic information on a direction of an image of the inspection target is given. The image display device includes a first selector that selects one piece of the second characteristic information and a display that aligns and displays the plurality of moire images or reconstructed images in a same direction, based on the second characteristic information selected by the first selector. The display displays characteristic information on the direction including at least one piece of the first characteristic information and one piece of the second characteristic information together with the plurality of moire images or reconstructed images.