Display Apparatus Idle State Detection via Weighted Screen Analysis
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Solution Overview
Problem
Parents face challenges in monitoring and limiting their children's online gaming time, especially when they are not present, and existing technologies struggle to determine whether a content image is active or idle, affecting system performance.
Innovation Solution
A display apparatus with a processor that analyzes changes in image frames, particularly in the center and peripheral regions of the screen, to determine if the content is in an active or idle state, using weighted mean absolute difference and brightness differences, allowing for optimized application usage based on this determination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the system monitors all regions of the screen equally to determine content activity, then the monitoring accuracy is improved, but the processing complexity and resource consumption increase
Solution Approach 1:
The patent applies local quality by assigning different weights to different screen regions when detecting content activity. The center region (first region) is given a higher weight than the peripheral region (second region). This allows the system to focus processing resources on the most important area for determining content activity, thereby maintaining detection accuracy while reducing overall processing complexity.
2Measurement precision
If the system analyzes every frame change in detail to determine idle state, then the detection accuracy is improved, but the processing time and resource usage increase
Solution Approach 1:
The system reduces processing time by applying local quality analysis - it calculates weighted mean absolute difference values for different screen regions with different weights. By giving higher weight to the center region and lower weight to peripheral regions, the system can make accurate idle state determinations more quickly, as it doesn't need to analyze all frame changes with equal detail across the entire screen.
3Measurement precision
If the system uses weighted region analysis to improve idle state detection, then the detection accuracy is improved, but the computational overhead increases
Solution Approach 1:
The patent reduces computational energy consumption by implementing local quality analysis with weighted regions. Instead of uniformly processing the entire screen, the system divides the screen into a center region (first region) and peripheral region (second region), assigning different weights to each. This selective approach with higher weight on the center region reduces the overall computational burden while maintaining or improving idle state detection accuracy.
Data Source
AI summary
Disclosed is a display apparatus and a control method thereof. The display apparatus includes: a display comprising a screen to display an image thereon; a processor configured to: display on the screen of the display an image of a content consisting of a plurality of frames, identify whether a use state of the content is in an idle state based on a change in an image between consecutive first and second frames, and perform an operation according to the identified state. The processor is configured to identify a change in an image in a first region comprising a center of the screen by providing a weight greater than that of a change in an image in a second region located near the first region.