Code Image Inspection Apparatus with Regional Quality Evaluation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing print product inspection methods face challenges in completing quality evaluations within the predetermined time, especially when many code images are present, leading to difficulties in inline inspections.
Innovation Solution
An inspection apparatus that sets different types of inspections for code images in specific regions, allowing for a first type and a second type of inspection, where the second type includes more inspection items, enabling efficient processing by selecting which inspections to perform based on the inspection region.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If quality evaluation inspection is performed on all code images in the print product, then inspection thoroughness is improved, but inspection time increases making it difficult to complete within predetermined time
Solution Approach 1:
The patent applies local quality by performing different types of inspections on different inspection regions. Specifically, the first inspection type (comprehensive quality evaluation) is applied to a first inspection region, while the second inspection type (simpler inspection) is applied to a second inspection region. This allows the system to maintain high inspection thoroughness where needed while reducing inspection time in other regions, thereby resolving the contradiction between inspection completeness and time constraints.
2Measurement precision
If comprehensive quality evaluation is performed on all code images, then inspection accuracy is improved, but productivity decreases due to increased inspection time
Solution Approach 1:
The patent implements local quality by differentiating inspection regions and applying appropriate inspection types to each. The first inspection region receives comprehensive quality evaluation for high accuracy, while the second inspection region receives a simplified inspection process. This regional differentiation maintains high inspection accuracy where necessary while improving overall productivity by reducing inspection time in other areas.
Solution Approach 2:
The patent applies partial action by performing only the necessary level of inspection for each region. Instead of uniformly applying comprehensive quality evaluation to all code images, the system performs partial inspection (second type) on the second inspection region, which contains sufficient inspection items to meet requirements but fewer than the first type. This partial inspection approach maintains adequate accuracy while significantly improving productivity.
Data Source
AI summary
An inspection apparatus includes: a setting unit configured to set a type of inspection to be performed on code images in a print product in which the code images are printed, for each of inspection regions including the code images being inspection targets; an obtaining unit configured to obtain a read image obtained by reading the print product; and an inspection unit configured to perform the type of inspection set by the setting unit for each of the inspection regions in the read image, in which the type of inspection includes a first type of inspection and a second type of inspection, the second type of inspection including more inspection items than the first type of inspection.