Document Image Page Numbering by Position Coordinates
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Solution Overview
Problem
Existing image processing apparatuses face difficulties in correctly setting page numbers for documents randomly arranged in a matrix of rows and columns, as they struggle to align the sides of the documents with the direction of the row or column, making it challenging to manage multiple document images as a single document.
Innovation Solution
An image processing apparatus that extracts position coordinates of each document image, identifies a document image with sides parallel to the arrangement direction, and sets page numbers in an order of closeness from near to far distance to the origin, iteratively processing groups of documents to correctly align and number them.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple documents are randomly arranged in a matrix of rows and columns, then the document holder can accommodate various document placements, but it becomes difficult to correctly set page numbers and align document sides with the arrangement direction
Solution Approach 1:
The system performs preliminary detection of document positions and orientations before setting page numbers. By extracting position coordinates and determining arrangement directions in advance, the system prepares the necessary information to correctly number documents even when randomly placed, resolving the contradiction between placement flexibility and numbering accuracy
Solution Approach 2:
The patent replaces manual document arrangement and numbering with an automated image processing system. The processor automatically detects document positions, determines arrangement directions, and sets page numbers based on detected coordinates, eliminating the need for manual alignment and numbering while maintaining accuracy despite random document placement
2Measurement precision
If documents are arranged in a fixed matrix pattern with aligned sides, then page numbers can be easily set in row or column order, but the system cannot handle randomly placed documents
Solution Approach 1:
The system dynamically adapts to different document arrangements by detecting the actual positions and orientations of documents. Rather than requiring a fixed arrangement pattern, the system adjusts its page number setting based on the detected arrangement direction (horizontal or vertical) and position coordinates, enabling it to handle both fixed and random document placements equally well
Solution Approach 2:
The system changes its processing parameters based on the detected document arrangement. By determining the arrangement direction (horizontal or vertical) from position coordinates, the system adjusts the page number setting sequence accordingly, allowing accurate numbering regardless of whether documents are fixed in a matrix or randomly placed
3Measurement precision
If the system processes each document individually to determine its position, then accurate page numbers can be assigned, but the processing time and complexity increase
Solution Approach 1:
The system merges the processing of multiple documents into a unified operation. By extracting position coordinates for all documents in a single processing step and determining the arrangement direction based on the collective position data, the system reduces processing complexity while maintaining accurate position coordinate extraction for each document
Data Source
AI summary
An image processing apparatus includes a processor configured to: extract position coordinates of each document image from an entire image resulting from photographing multiple documents; perform a first operation that extracts, from the document images included in the entire image, a first document image having two sides parallel with a direction of arrangement of the documents and having a first side of the two sides being a far side from a first coordinate axis, the first side having the shortest distance to the first coordinate axis, the first coordinate axis being in parallel with the direction of the arrangement of the documents set with respect to an origin of the entire image; perform a second operation that extracts, as an document image of the same group, a second document image overlapping an extension of the first side of the extracted first image document; and perform a third operation that sets a page number on each of the extracted document images of the same group in an order of closeness from near to far distance to the origin.