Superimposed Character Image Verification Apparatus
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Solution Overview
Problem
Current character recognition systems require significant labor and time for operators to verify and correct recognition results, as errors can occur even with high accuracy, necessitating thorough visual inspection of character images and recognition results.
Innovation Solution
A character recognition result verification apparatus that generates verification images by superimposing character images, using a first region with consistent pixel values across all images and a second region with varying pixel values, allowing for efficient verification and correction of recognition results by displaying these images differently to highlight potential errors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If character images and recognition results are displayed side-by-side for visual verification, then verification accuracy is improved, but verification time and labor increase significantly
Solution Approach 1:
The patent transforms the verification process from a two-dimensional side-by-side display comparison to a three-dimensional superimposed display where multiple character images are overlaid. This dimensional change allows operators to verify multiple characters simultaneously in a single visual field, maintaining verification accuracy while dramatically reducing the time and labor required.
Solution Approach 2:
The patent merges multiple character images into a single superimposed display structure. By combining multiple verification objects into one integrated visual representation, the system enables operators to verify multiple characters at once, reducing the cumulative time required for sequential verification of each character individually.
2Reliability
If every character is verified by operator inspection, then recognition error correction is improved, but labor and time consumption increase
Solution Approach 1:
The patent implements partial verification by displaying a superimposed image that highlights only characters requiring verification or correction. Instead of requiring operators to examine every single character, the system identifies and presents only the subset of characters that need attention, maintaining error correction reliability while significantly improving verification efficiency.
Solution Approach 2:
The patent uses color coding to differentiate between verified and unverified characters in the superimposed display. By applying color changes to indicate verification status or error presence, the system guides operator attention to specific areas requiring correction, reducing overall verification time while maintaining high error detection rates.
3Measurement precision
If multiple character images are displayed for comparison, then verification completeness is improved, but display complexity increases
Solution Approach 1:
The patent resolves display complexity by transitioning from a two-dimensional layout that requires horizontal scrolling or multiple screens to a three-dimensional superimposed display. This allows multiple character images to be stacked vertically or layered in depth, fitting more verification data into a single screen view without increasing horizontal or vertical display dimensions.
Solution Approach 2:
The patent segments the superimposed character images into distinct visual layers or groups, allowing operators to systematically verify characters in an organized manner. By dividing the complex display into manageable segments or layers, the system maintains verification completeness while reducing the perceived complexity through structured presentation.
Data Source
AI summary
In one embodiment, a character recognition result verification apparatus has a group generation section and a verification image generation section. The group generation section generates a group including a plurality of character images recognized as the same character from a document image including a plurality of character images. The verification image generation section generates a verification image including a first region and a second region by superimposing the plurality of character images included in the generated group. The first region corresponds to a pixel having the same pixel value in all of the plurality of character images. The second region corresponds to a pixel having the same pixel value in a part of the plurality of character images.