Reference Image Scaling for Clearer Sheet Inspection Displays
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Solution Overview
Problem
Existing image inspection systems fail to account for the overall size of the displayed image when setting enlarged displays, affecting the visibility of inspection results.
Innovation Solution
An inspection apparatus that includes a processor to compute a scaling factor for displaying a reference image within a display region, allowing for enlargement beyond a threshold to improve visibility of inspection results.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the reference image is displayed at a scaling factor that fits the entire image within the display region, then the complete image is visible, but the visibility and detail of inspection results deteriorate when the image is large
Solution Approach 1:
The patent implements dynamic scaling factor adjustment based on the computed first scaling factor. When the first scaling factor is less than a threshold, the system automatically sets a second scaling factor greater than the first to enlarge the display. This dynamic adaptation allows the display to switch between showing the complete image and showing enlarged details based on the image size and display region characteristics.
Solution Approach 2:
The system changes the display parameter (scaling factor) from the first scaling factor to a second scaling factor that is greater than the first. This parameter change is triggered when the first scaling factor falls below a predetermined threshold, allowing the system to optimize visibility by displaying at an enlarged scale when appropriate while maintaining the ability to show complete images when needed.
2Ease of operation
If a fixed scaling factor is used for displaying reference images, then the display system is simple to operate, but the visibility of inspection results cannot be optimized for different image sizes
Solution Approach 1:
The system automatically computes the first scaling factor based on the display region and reference image dimensions, and autonomously determines whether to apply a second enlarged scaling factor. This self-service mechanism eliminates the need for users to manually adjust scaling settings, maintaining ease of operation while optimizing visibility automatically based on the specific display conditions.
Solution Approach 2:
The system dynamically adjusts the scaling parameter based on computed values and predetermined thresholds. When the first scaling factor is below the threshold, the system automatically changes to a second scaling factor that provides enhanced visibility, thereby optimizing the display without requiring user intervention or complex manual configuration.
3Illumination intensity
If the reference image is displayed in an enlarged manner to improve visibility, then the detail of inspection results is enhanced, but the overall image may not fit within the display region
Solution Approach 1:
The system dynamically determines the appropriate scaling factor based on the relationship between the reference image size and display region. By computing the first scaling factor and comparing it against a threshold, the system intelligently switches between displaying the complete image and displaying an enlarged view, ensuring that visibility is optimized without exceeding the display region boundaries.
Solution Approach 2:
The system adjusts the scaling parameter from the first scaling factor to a second scaling factor that is greater than the first, but only when the computed first scaling factor is below a predetermined threshold. This controlled parameter change ensures that enlargement is applied only when necessary to improve visibility, while preventing the image from exceeding the display region when the first scaling factor is already appropriate.
Data Source
AI summary
An inspection apparatus obtains an inspection image generated by reading a sheet on which an image is formed, inspects the inspection image based on the reference image, computes a first scaling factor that is a scaling factor of the reference image in a case where an entirety of the reference image is displayed within a display region of a display device, and displays the reference image in the display region at a second scaling factor greater than the first scaling factor in a case where the first scaling factor is less than a first threshold.