Form Processing System OCR Accuracy via Printer-Specific Referential Image Data
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Solution Overview
Problem
Existing form processing systems face challenges in improving OCR accuracy due to differences in printers' characteristics, such as printable regions, origin positions, font types, and resolution conversion, which lead to displacement and tilting issues in image data, increasing user workload and reducing processing accuracy.
Innovation Solution
A form processing system that includes a form creation device generating layout information and instructing a printer to produce referential image data matching the printer's characteristics, which is then transmitted to an OCR device for improved accuracy, reducing user burden by using common layout information and algorithm-assisted adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If referential image data is generated using a general drawing unit in the form creation device, then the system is simpler, but the image data does not match printer-specific characteristics leading to OCR errors
Solution Approach 1:
The patent introduces a drawing performing unit in the printer as an intermediary component that generates referential image data based on layout information from the form creation device. This intermediary ensures the image data reflects printer-specific characteristics (printable region, origin position, font types, resolution conversion) while maintaining system modularity. The drawing performing unit acts as a mediator between the form creation device and OCR device, translating layout information into accurate visual representations that account for printer variations.
Solution Approach 2:
The system separates the drawing function into a dedicated drawing performing unit within the printer, distinct from the form creation device's general drawing unit. This segmentation allows the printer to handle printer-specific rendering tasks independently, ensuring referential image data accuracy without complicating the form creation device. The layout information is segmented into essential structural data, while printer-specific rendering details are handled separately by the drawing performing unit.
2Measurement precision
If users manually adjust for each printer's characteristics, then OCR accuracy can be maintained, but user workload increases significantly
Solution Approach 1:
The system implements self-service by enabling the drawing performing unit in the printer to automatically generate accurate referential image data based on layout information, without requiring user intervention for printer-specific adjustments. The printer autonomously accounts for its own characteristics (printable region, origin position, font types, resolution conversion) when generating the image data, eliminating the need for users to manually adjust settings for each printer.
Solution Approach 2:
The system dynamically adjusts rendering parameters based on printer-specific characteristics. The drawing performing unit modifies image generation parameters (such as resolution conversion, font selection, origin position) according to the specific printer's capabilities, ensuring accurate referential image data is generated automatically. This parameter-based adaptation replaces manual user adjustments with automated parameter optimization.
3Manufacturing precision
If the system uses printer-specific drawing functions, then referential image data accuracy improves, but device complexity increases
Solution Approach 1:
The drawing performing unit in the printer serves multiple functions: it generates referential image data for OCR processing, applies printer-specific rendering characteristics, and produces accurate visual representations of layout information. This multi-functional component consolidates what would otherwise require separate specialized modules, achieving high image data accuracy while minimizing overall device complexity through functional integration.
Data Source
AI summary
There is provided a form processing system including a form creation device and a printer, wherein the form creation device includes a layout generation unit that generates layout information denoting a layout of a form, a drawing instruction unit that causes a drawing performing unit in the printer to generate referential image data which corresponds to at least part of the generated layout information, based on the generated layout information, and an image transmission unit that transmits the generated referential image data to an OCR device, and the printer includes the drawing performing unit that generates the referential image data in accordance with an instruction from the drawing instruction unit.