Scanning System Character Recognition Candidate Output
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Solution Overview
Problem
The accuracy of character recognition in image data varies significantly with scan settings, such as resolution, leading to inconsistent results in scanning systems.
Innovation Solution
A scanning system that includes a receiving section for scan settings and instructions, a scanner for image capture, and a determining section for character recognition, which outputs candidate character strings based on the scan settings, thereby improving recognition accuracy across different resolutions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If scanning is performed at low resolution to reduce data size and scanning time, then scanning speed and efficiency are improved, but character recognition accuracy deteriorates
Solution Approach 1:
The system performs character recognition and generates candidate character strings during the scanning process itself, before final output is produced. This preliminary action allows the system to identify potential recognition issues early and prepare multiple candidates for later verification, resolving the contradiction between scanning speed and recognition accuracy.
Solution Approach 2:
The system provides feedback by outputting multiple candidate character strings with different confidence levels. This feedback mechanism allows users or subsequent processing to select the most appropriate candidate, ensuring accurate character recognition even when scanning at lower resolutions for improved productivity.
2Reliability
If multiple candidate character strings are output to improve recognition accuracy, then character recognition reliability is improved, but system complexity increases
Solution Approach 1:
The character recognition system serves itself by automatically generating and ranking multiple candidate character strings based on confidence levels. This self-service approach improves reliability without requiring external intervention or complex manual processes, as the system autonomously manages the candidate generation and selection workflow.
Data Source
AI summary
A scanning system includes a scanner that causes an image sensor to operate and performs scanning to read an image in accordance with a scan setting in response to reception of the scan setting and a scan instruction, and a determining section that performs character recognition on image data indicating the read image to recognize a character string, and outputs the image data and a candidate character string that is a candidate for the recognized character string. The determining section outputs a number of candidate character strings according to the scan setting.