Image Magnification Calculator for Evaluation Chart Measurement
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Solution Overview
Problem
Existing image evaluating apparatuses fail to accurately measure evaluation charts with varying image sizes, particularly when using complex layouts, as they rely on fixed positional measurements that are not adaptable to changes in image size caused by different RIP and printing press combinations.
Innovation Solution
An image evaluating apparatus that calculates image magnification to adjust positional information of regions of interest based on standard positional information, allowing for accurate measurement even when image sizes deviate from planned sizes, using a standard image region and a measurement image region ratio, and reduces storage requirements by using a single type of standard positional information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If corrective parameters are stored for each combination of RIPs and printing presses, then measurement accuracy is improved, but memory storage requirements increase significantly
Solution Approach 1:
The patent applies universality by creating a single type of standard positional information that can be used across all combinations of RIPs and printing presses. Instead of storing separate corrective parameters for each device combination, the system uses one universal standard that adapts to different scenarios through image magnification calculation, thereby reducing memory storage requirements while maintaining measurement accuracy.
Solution Approach 2:
The patent changes the parameter approach from storing fixed corrective parameters for each device combination to calculating dynamic image magnification parameters. By computing the ratio between actual image size and standard image size, the system adapts the standard positional information to match actual measurements, eliminating the need for extensive pre-stored correction data.
2Device complexity
If fixed positional measurements are used, then device complexity is reduced, but measurement accuracy deteriorates when image sizes vary
Solution Approach 1:
The patent introduces dynamics by transitioning from fixed positional measurements to dynamic positional calculations. The system calculates image magnification based on actual image dimensions and adjusts positional information accordingly, allowing the measurement system to adapt to varying image sizes while maintaining accuracy without significantly increasing device complexity.
3Productivity
If standard positional information is stored for each evaluation chart type, then measurement speed is improved, but storage requirements increase
Solution Approach 1:
The patent applies universality by designing a single type of standard positional information that serves all evaluation chart types. The system achieves measurement efficiency not through pre-stored chart-specific data, but through universal standard positional information combined with real-time image magnification calculation, thereby maintaining productivity while minimizing storage requirements.
Data Source
AI summary
Standard positional information is acquired about a plurality of regions of interest to be quantified, which are designated in a standard image region. An image magnification which represents a size ratio of measurement image region represented by the image data to the standard image region is calculated. Positional information of a plurality of regions of interest depending on the measurement image region is calculated based on the acquired standard positional information and the calculated image magnification.