Metadata Conversion for HDR Video Graphic Overlay Consistency
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Solution Overview
Problem
High Dynamic Range (HDR) content displays experience brightness and color inconsistencies when graphic menus are overlayed, leading to image degradation issues like flicker and sudden drops in image quality.
Innovation Solution
An electronic apparatus and display method that converts dynamic metadata for HDR content into static metadata for graphic content sections, maintaining consistent brightness and color by gradually transitioning metadata during frame changes, using a processor to apply weight values and calculate metadata values based on previous frames and reference data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If dynamic metadata is used for HDR content display, then image quality and brightness are improved, but brightness and color consistency deteriorate when graphic menus are overlayed
Solution Approach 1:
The patent segments the metadata application by identifying graphic menu regions and excluding them from dynamic metadata adjustments. The processor detects graphic content regions and applies different metadata processing rules to graphic regions versus video content regions, preventing brightness and color shifts in menus while maintaining HDR effects in video content.
Solution Approach 2:
The patent implements local quality by applying dynamic metadata selectively only to video content areas while excluding graphic menu areas. This allows different parts of the display to have different metadata processing characteristics - video regions receive dynamic adjustments for HDR while graphic regions maintain stable brightness and color settings.
2Illumination intensity
If dynamic metadata adjusts brightness for each scene, then HDR effect is enhanced, but image degradation like flicker occurs during graphic content display
Solution Approach 1:
The patent segments the display area into video content regions and graphic content regions, applying different metadata processing strategies to each segment. Video regions receive dynamic brightness adjustments while graphic regions maintain stable brightness levels, preventing flicker and image degradation in menu areas.
Solution Approach 2:
The patent changes the metadata parameters applied to different regions - dynamic metadata parameters are applied to video content while static or excluded parameters are used for graphic content. This parameter differentiation ensures brightness stability in graphic areas while maintaining HDR brightness enhancement in video areas.
3Stability of the object's composition
If metadata is converted from dynamic to static for graphic content, then brightness and color consistency is maintained, but transition smoothness may be affected
Solution Approach 1:
The patent segments metadata processing by region, applying static metadata to graphic content areas while maintaining dynamic metadata for video content. This spatial segmentation allows immediate consistency in graphic areas without requiring temporal transition smoothing, as the static metadata is applied directly to the relevant region.
Data Source
AI summary
An electronic apparatus is provided. The electronic apparatus according to an example embodiment includes a communication interface and a processor configured to provide a video content and dynamic metadata corresponding to each content section of the video content to an external display apparatus through the communication interface, each content section comprising a plurality of frames, wherein the processor is further configured to transmit the dynamic metadata to the external display apparatus on a frame-by-frame basis, and based on a graphic content being activated, provide data to the display apparatus by converting dynamic metadata corresponding to a content section where the graphic content is activated into static metadata during a plurality of frames.