Graphical Overlay Readability Over Noisy Video Backgrounds
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Solution Overview
Problem
Existing display screen technologies face challenges in ensuring readability of graphical overlays when they are arranged over visually noisy backgrounds, as the competing layers for display space can diminish the legibility of the overlay.
Innovation Solution
The technology modifies one or more parameters of graphical overlays, such as opacity and position, based on the analysis of brightness and contrast levels of the underlying video or image, to enhance readability and reduce visual interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If graphical overlay is displayed over visually noisy background content, then display space utilization is improved, but readability of the overlay deteriorates
Solution Approach 1:
The patent applies dynamics by making the overlay opacity adjustable rather than fixed. The system dynamically changes the overlay's transparency level based on real-time analysis of the background video's contrast characteristics, allowing the overlay to adapt its visual properties to maintain readability while maximizing display space utilization.
Solution Approach 2:
The patent changes the parameter of overlay opacity based on the contrast characteristics of the background content. When the background has high contrast, the system reduces overlay opacity to maintain readability, while allowing higher opacity when background contrast is low, thus optimizing the balance between information transmission and visual clarity.
2Loss of information
If overlay opacity is increased to improve readability, then legibility of overlay information is improved, but visual interference with background content increases
Solution Approach 1:
The system employs feedback by continuously analyzing the background video's contrast characteristics and using this information to adjust the overlay opacity in real-time. This closed-loop control ensures that the overlay maintains optimal readability while minimizing visual interference with the background content.
Solution Approach 2:
The overlay opacity is made dynamic rather than static, allowing it to fluctuate based on the background content's contrast properties. This dynamic adjustment enables the system to optimize readability when needed while preserving background visibility when the overlay is less critical.
3Loss of information
If overlay is positioned to maximize visibility, then readability is improved, but disruption to background content composition increases
Solution Approach 1:
The patent applies local quality by allowing different regions of the display to have different overlay opacity levels. Rather than applying a uniform opacity across the entire screen, the system adjusts opacity locally based on the contrast characteristics of specific background regions, thereby maintaining readability while preserving the overall composition integrity.
Data Source
AI summary
Disclosed herein are system, apparatus, article of manufacture, method and/or computer program product embodiments, and/or combinations and sub-combinations thereof, for modifying one or more parameters of graphical overlays to increase readability when arranged over a very visually noisy display screen. An example embodiment operates by determining a graphic rendering area and position within a video frame of a graphical overlay, calculating a location of video sub-blocks located in another layer of the video frame, wherein the video sub-blocks at least partially obfuscate the graphical overlay during rendering, evaluating a histogram of the video sub-blocks aligned with the graphic rendering area and selecting, based on a histogram value being above a threshold histogram value, a second graphic rendering area, and relocating the graphic overlay to the second graphic rendering area.