Camera Guide Display for Document Capture
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Solution Overview
Problem
Capturing an entire document with a mobile terminal using a camera is challenging due to low resolution, requiring multiple image captures and increased user burden, especially when the image capturer is not aware of the important areas for character information.
Innovation Solution
An information processing apparatus with a camera function that analyzes live view images to determine uncaptured areas and displays guides for the user to capture the next image, ensuring image quality suitable for OCR processing by controlling the display of guides to prompt appropriate operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If image capturing is performed by dividing into a plurality of times to capture entire large documents, then character recognition accuracy is improved, but user burden and operation complexity increase
Solution Approach 1:
The system provides real-time feedback by analyzing the live view image and displaying guide information that indicates the direction and area of uncaptured regions. This feedback loop guides the user to capture images systematically, reducing the burden of manual operation while ensuring complete document coverage for accurate character recognition.
Solution Approach 2:
The system introduces an intermediary processing layer that analyzes the live view image to determine uncaptured areas and generates appropriate guide information. This intermediary automatically processes the complex task of determining capture sequences and directions, leaving the user with simple follow-up actions based on the displayed guides.
2Area of stationary object
If multiple images are captured to cover entire document, then complete document coverage is achieved, but time required for capturing increases
Solution Approach 1:
The system performs preliminary analysis of the live view image to identify uncaptured areas before the user makes the next capture. By pre-determining the optimal capture direction and displaying guide information in advance, the system enables the user to proceed directly to the next capture without hesitation or repeated adjustments, reducing total capturing time.
Solution Approach 2:
Real-time feedback through guide information displayed on the live view image allows the user to understand exactly what area needs to be captured next and in which direction. This eliminates unnecessary captures and adjustments, streamlining the multi-image capturing process to achieve complete document coverage more efficiently.
3Ease of operation
If guide information is provided to assist user capturing, then ease of operation improves, but device complexity increases
Solution Approach 1:
The system performs self-service by automatically analyzing the live view image to identify uncaptured areas and generating appropriate guide information without requiring external intervention or complex user input. The processing is driven by the system's own captured data, making the complexity management self-contained while providing user-friendly guidance.
Data Source
AI summary
In order to capture entire object, it is necessary for an image capturer to move a mobile terminal in various directions and to determine whether all is captured, and therefore, the operation of the image capturer becomes complicated. An information processing apparatus having a camera function, which displays a live view image acquired via a camera on a display, determines, by analyzing the live view image, a direction of an uncaptured area that should be captured next and whether the live view image is an image suitable to OCR processing, and displays, in accordance with analysis results of the live view image, a guide to prompt a user to perform an operation so that an image corresponding to the determined direction of the uncaptured area of the object is captured next.