Real-Time Preview Scanning for Error Detection in Document Sets
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Solution Overview
Problem
Conventional digital multifunction devices lack the ability to preview image data during the scanning process, requiring users to complete the scanning of all document sheets before previewing or correcting errors, which is inefficient and inconvenient, especially for large documents.
Innovation Solution
An image processing apparatus that allows for real-time previewing of image data during the scanning process by dividing document sheets into sets, reading each set separately, and displaying the read image data before proceeding with the next set, enabling users to detect and correct errors as they occur.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If all document sheets are read and stored before previewing, then complete image data is available for preview, but reading time and user waiting time increase significantly
Solution Approach 1:
The patent divides the reading process into multiple batches, where each batch reads a portion of document sheets. After each batch is read, the system previews the read images immediately without waiting for all sheets to be read. This segmentation allows users to see progress and detect errors early, resolving the contradiction between having complete data and reducing waiting time.
2Reliability
If reading errors are detected after complete scanning, then all sheets must be re-read, but this increases reading time and reduces efficiency
Solution Approach 1:
The system implements feedback by displaying preview images of read documents in real-time during the reading process. Users can immediately see if sheets are missing, duplicated, or contain errors, and can instruct the system to re-read specific sheets before proceeding. This early error detection prevents wasteful re-reading of entire documents, improving both reliability and productivity.
3Productivity
If document sheets are divided into multiple batches for reading, then reading can proceed in manageable segments, but users cannot preview complete document until all batches are read
Solution Approach 1:
The system performs preliminary previewing of each batch of read images before proceeding to read the next batch. This allows users to verify reading progress and detect errors in each segment immediately after it is read, without having to wait for all batches to complete. This maintains the efficiency benefits of batched reading while improving user control and verification capability.
Data Source
AI summary
An image processing apparatus has a capability of displaying a preview image on a display under the control of a controller even in the middle of a process of reading document pages in a binding reading mode in which a large number of document sheets are read by repeatedly performing reading on a part-by-part basis until all pages of a given set of document sheets have been read. The preview capability enables a user to easily detect if an error occurred in reading one or all of the pages. If a particular page of image data is detected to have an error, re-reading of that page is performed using a scanner unit. The page of image data having the error is discarded and the image data obtained by re-reading is inserted in place of the discarded page. After completion of re-reading, reading of the remaining pages of the document set can continue in the binding reading mode. This leads to a drastic improvement in operational efficiency.