Content Region Classification for Vision Accessibility
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Solution Overview
Problem
Existing electronic devices face challenges in rendering contents effectively in low light conditions, leading to eye strain and inadequate vision accessibility, as current night modes often result in increased brightness that can tire the eyes and fail to seamlessly adapt to different display capabilities.
Innovation Solution
The method involves classifying content into regions like background, foreground, and image, adjusting lightness and brightness spans using a predefined database, and applying optimal color space techniques such as BT.709 or BT.2020 YCbCr to modify content, ensuring vision accessibility and reducing eye strain by optimizing lightness and brightness levels based on current display conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the electronic device increases screen brightness to improve visibility in low light conditions, then vision accessibility is improved, but eye strain increases
Solution Approach 1:
The patent segments the content into multiple regions (text region, image region, background region, foreground region) and applies different lightness/brightness adjustments to each region. This allows selective optimization where text regions can be brightened for readability while image regions maintain their original characteristics, thereby improving visibility without uniformly increasing overall brightness that would cause eye strain.
Solution Approach 2:
The patent applies local quality by defining region-specific lightness factors and lightness spans for different content regions. Each region receives customized brightness adjustment based on its characteristics, enabling critical areas like text to be enhanced for readability while non-critical areas maintain natural appearance, thus improving vision accessibility without causing excessive eye strain from uniform brightness increase.
2Illumination intensity
If the electronic device applies aggressive brightness adjustment to improve night mode visibility, then vision accessibility is improved, but content distinction and original contrast are lost
Solution Approach 1:
The patent implements dynamic adjustment by identifying optimal lightness spans based on current display brightness levels and ambient conditions. The system dynamically determines appropriate brightness adjustments for each region rather than applying fixed aggressive adjustments, preserving content distinction by adapting the degree of adjustment to current viewing conditions and maintaining original contrast relationships.
Solution Approach 2:
The patent changes parameters by defining specific lightness factors and lightness spans for different regions based on their characteristics. Instead of uniform parameter adjustment, the system modifies lightness parameters selectively for text, image, background, and foreground regions, preserving content distinction through region-specific parameter optimization rather than aggressive global adjustment.
3Object-affected harmful factors
If the electronic device implements region-specific lightness adjustment to improve vision accessibility, then eye strain is reduced, but device complexity increases
Solution Approach 1:
The patent applies preliminary action by pre-defining lightness spans and lightness factors for different content regions before actual rendering. The system prepares region classifications and optimal lightness parameters in advance based on content analysis, reducing runtime processing complexity while maintaining the ability to reduce eye strain through region-specific adjustments.
Solution Approach 2:
The patent uses copying by creating a processed version of the content with adjusted lightness parameters while maintaining the original content structure. The system generates a transformed representation with region-specific lightness modifications rather than fundamentally changing the rendering pipeline, reducing device complexity by working with copied and modified content data rather than complete system reconfiguration.
4Object-affected harmful factors
If the electronic device performs real-time brightness optimization to reduce eye strain, then vision accessibility is improved, but power consumption increases
Solution Approach 1:
The patent applies partial action by optimizing brightness adjustments only for critical regions like text and foreground elements that most impact readability and eye strain. Rather than processing all content regions equally, the system focuses computational resources on regions where brightness optimization provides maximum benefit, reducing overall power consumption while maintaining vision accessibility improvements.
Data Source
AI summary
Embodiments herein disclose a method for modifying content in an electronic device. The method may include classifying a plurality of regions in the content, wherein at least one of a lightness factor or a brightness factor is defined for each of the regions. The method may further include obtaining at least one of a candidate lightness span or a candidate brightness span for each of the classified region from a predefined lightness span database or a predefined brightness database and identifying a current brightness level of a display of the electronic device. The method further may further include identifying at least one of an optimal lightness span or an optimal brightness span by adjusting the candidate lightness span and candidate brightness span based on the current brightness level and modifying the content corresponding to each of the classified region using at least one of the optimal lightness span and the optimal brightness span.