Level-indication icon for document image acquisition
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Solution Overview
Problem
The ability to extract useful information from images using optical character recognition is often hindered by image quality issues, leading to time-consuming post-acquisition operations and reduced user willingness to capture images for applications that leverage image information.
Innovation Solution
An electronic device displays visual suitability indicators to assist users in acquiring images with optimal tilt orientation, light intensity, and framing, allowing for automatic image capture and improved optical character recognition accuracy without user intervention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the user manually captures images and performs post-acquisition operations (cropping, error correction, re-capturing), then image quality may be improved, but time consumption increases significantly
Solution Approach 1:
The system performs preliminary actions by displaying visual suitability indicators (level-indication icon, framing guides, light intensity indicators) before the user captures the image. This guides the user to position the device correctly, frame the document properly, and ensure adequate lighting before capture, thereby preventing poor image quality and reducing the need for re-capturing and post-processing operations.
Solution Approach 2:
The system provides real-time visual feedback through suitability indicators that show whether the current image conditions are acceptable. The level-indication icon indicates tilt orientation quality, framing guides show document positioning accuracy, and light intensity indicators reveal lighting adequacy. This feedback loop enables the user to adjust the device position and capture conditions immediately, improving image quality without time-consuming trial-and-error re-capturing.
2Measurement precision
If the system provides comprehensive visual suitability indicators and automatic capture, then image acquisition accuracy improves, but device complexity increases
Solution Approach 1:
The system integrates multiple functions into a single imaging application: the display shows both the captured image preview and superimposed visual suitability indicators (level-indication icon, framing guides, light indicators) simultaneously. The same display device serves multiple purposes - showing the camera view, providing feedback indicators, and displaying the final captured image. This multi-functionality approach improves measurement precision without requiring separate dedicated devices for each function.
Data Source
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AI summary
During an information-extraction technique, visual suitability indicators may be displayed to a user of the electronic device to assist the user in acquiring an image of a document that is suitable for subsequent extraction of textual information. For example, an imaging application executed by the electronic device may display, in a window associated with the imaging application, a visual suitability indicator of a tilt orientation of the electronic device relative to a plane of the document. When the tilt orientation falls within a predefined range, the electronic device may modify the visual suitability indicators to provide visual feedback to the user. Then, the electronic device may acquire the image of the document using an imaging device, which is integrated into the electronic device. Next, the electronic device may extract the textual information from the image of the document using optical character recognition.