Video Output Device Scaling Character Legibility
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Solution Overview
Problem
Existing video output devices struggle to effectively display supplemental information when multiple videos are scaled down, leading to character or symbol crushing and loss of important information, especially when non-character information such as logos or marks are involved.
Innovation Solution
A video output device with a screen configuration management section, area determination section, supplemental information storing section, and display determination section that determines and displays supplemental information based on the scaling factor, ensuring that critical information remains legible by cutting out and superposing relevant areas on the main video screen.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple video images are scaled down for display on divided screens, then the screen division function is achieved and multiple videos can be displayed simultaneously, but character strings and symbols in the scaled-down video become crushed and illegible
Solution Approach 1:
The patent extracts character strings and symbols from the scaled-down video image using character/symbol extraction means. The extraction process identifies and separates text elements from the background video content, allowing them to be processed and displayed separately to maintain legibility while preserving the scaled-down video display functionality.
Solution Approach 2:
The patent introduces a character recognition means as an intermediary between the scaled-down video display and the final output. This intermediary component recognizes and processes character strings and symbols, converting them into a form that can be displayed clearly without requiring the video to be unscaled, thus mediating between the need for small display size and text legibility.
2Area of stationary object
If the video is displayed at a smaller size to fit multiple videos on the screen, then the screen utilization is improved, but the character size becomes too small to be read by the user
Solution Approach 1:
The patent creates a copy of the character strings and symbols extracted from the scaled-down video. This copied text information is then displayed separately in a larger, more readable format, allowing the original video to remain scaled down for efficient screen utilization while the copied text provides the necessary reading precision.
3Ease of operation
If the user operates the remote controller continuously to display information, then the user can access data broadcast information, but the operation complexity increases and information may be lost on hidden division screens
Solution Approach 1:
The patent implements automatic character string extraction and display functionality that operates without requiring continuous user intervention. The system automatically identifies, extracts, and displays character strings and symbols from the video content, making the information accessible without the user needing to continuously operate the remote controller.
Data Source
AI summary
A video output method and device includes utilizing a supplemental information storing section to determine whether or not an object area exists in the proximity of at least one character area, cuts out a video on a supplemental information area when the object area exists, and stores the video on the supplemental information area as supplemental information including the object area. A supplemental information display determination section determines whether or not the supplemental information stored by the supplemental information storing section is displayed in addition to an input video based on a screen configuration managed by the screen configuration management section. The supplemental information display determination section determines whether the supplemental information is displayed based on a size of a character included in a character area in the input video which changes in response to the scaling managed by the screen configuration management section.