Image Reading Device Error Detection via Area Segmentation
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Solution Overview
Problem
Existing image reading devices are unable to detect and notify users of read errors other than forgetting to turn over a document until after image data is saved or transmitted, leading to increased user burden and inconvenience.
Innovation Solution
An image reading device that divides the read area into multiple sections, performs collective image reading, and generates whole images, allowing for the extraction of individual images and notification of placement errors such as straddling or multiple documents per area, as well as changes in document characteristics or numbers across read processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If error detection is performed after image data is saved or transmitted, then device complexity is reduced, but user burden increases and error correction becomes difficult
Solution Approach 1:
The patent performs error detection by analyzing the relationship between divided areas and individual image positions before image data is saved or transmitted. This preliminary detection allows the system to identify placement errors such as documents straddling areas or multiple documents in one area, enabling early correction and reducing user burden without significantly increasing device complexity.
2Measurement precision
If the read area is divided into multiple areas for individual analysis, then measurement precision of document placement is improved, but device complexity increases
Solution Approach 1:
The patent divides the read area into multiple divided areas and performs individual analysis on each area to detect document placement errors. This segmentation enables precise measurement of whether documents are properly placed, straddling areas, or if multiple documents occupy one area. The complexity is managed by processing each area independently and comparing results against expected patterns.
Data Source
AI summary
An image forming device includes a CPU. The CPU causes an image reader to collectively read a plurality of documents placed in each divided area of a document placement table and acquire individual images according to a user operation. Furthermore, the CPU generates, for each divided area, an image file that includes the image. In addition, if document reading is executed in a state where a document is placed in an inappropriate position, a notification screen for notifying the user that the document is not appropriately placed is displayed on a display before the image file data is generated.