Superimposed Erasure Image for Document Verification
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing content management systems face challenges in reliably verifying the erasure of images on recording media, particularly due to the need for devices to read and discard images, leading to increased costs and potential errors in managing document disposal.
Innovation Solution
A content management system and method that uses an image forming device to create an erasure image superimposed on the content image on the recording medium, allowing for reliable verification of image erasure through a capturing device, without the need for the device to read the image, thereby reducing costs and preventing misidentification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the document discarding device reads an image from the document to be discarded, then the document can be verified, but the device complexity and costs increase
Solution Approach 1:
The patent uses an image forming device to create a copy image on the same recording medium that will be used for discarding. This copy image serves as verification data without requiring the discarding device to have image reading capabilities. The verification is achieved through the image forming device creating and managing the verification image, eliminating the need for complex reading equipment in the discarding device.
2Adaptability or versatility
If the document discarding device performs both reading and discarding functions, then document management is complete, but the device costs increase
Solution Approach 1:
The patent divides the document management functions into separate components: the image forming device handles verification by creating and managing verification images, while the document discarding device handles only the physical discarding. This segmentation allows each device to be simpler and less expensive, while the overall system maintains complete document management capabilities through coordination between the devices.
3Productivity
If the sheet of paper is replaced between image reading and discarding, then the document can be discarded, but misidentification occurs
Solution Approach 1:
The patent creates the verification image on the recording medium before the discarding process begins. This preliminary action ensures that the verification data is already present and bound to the specific document. Even if the document is replaced during the process, the verification image remains associated with the original document, preventing misidentification and ensuring accurate verification.
Data Source
AI summary
A method includes: associating content with erasure completion information indicating the content has been erased; forming an image of the content and an image at a time of formation indicating the erasure completion information; in a case where an erasure image is formed to be superimposed on at least a part of the image of the content on the recording medium, forming an image at a time of discarding indicating the erasure completion information and the erasure image, where the image at the time of discarding is associated with the content; and in a case where the erasure completion information is identified by the image at the time of formation and the image at the time of discarding included in single image data output when the image capturing device image-captures the recording medium, determining that the content associated with the erasure completion information has been erased.