Video Codec Burn-In Compensation via Static Luminance Adjustment
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Solution Overview
Problem
Current graphics processing technologies face challenges in accurately and efficiently addressing burn-in compensation, particularly in OLED displays where static luminance can lead to image retention and increased power consumption.
Innovation Solution
Implementing burn-in compensation at the source side of the video processing pipeline, specifically within a video codec or video processing unit, by identifying macroblocks with static luminance and adjusting their values based on a threshold duration, reducing the luminance of static macroblocks and storing this information for subsequent processing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If display-side processing is used for burn-in compensation, then image retention can be addressed, but processing efficiency is reduced and power consumption increases
Solution Approach 1:
The patent applies preliminary action by performing burn-in compensation processing at the video codec source side before video data is transmitted to the display. The system identifies static macroblocks and adjusts their luminance values in advance, so that when the video reaches the display, the compensation has already been applied. This eliminates the need for additional processing at the display side, thereby improving processing efficiency while maintaining image retention compensation effectiveness.
2Reliability
If display-side processing is used for burn-in compensation, then image retention can be addressed, but power consumption increases
Solution Approach 1:
The patent performs burn-in compensation processing at the video codec source side before video data transmission. By identifying static macroblocks and adjusting their luminance values in advance at the source device, the system eliminates the need for continuous processing at the display device, thereby significantly reducing power consumption while maintaining effective image retention compensation.
3Reliability
If static luminance is not adjusted, then power consumption is lower, but image retention occurs
Solution Approach 1:
The patent applies local quality by selectively adjusting only the luminance values of static macroblocks that are prone to causing image retention, rather than uniformly adjusting all pixels. The system identifies static macroblocks based on temporal redundancy analysis and applies luminance adjustment only to these specific regions. This localized approach prevents image retention in critical areas while minimizing overall power consumption compared to global adjustment methods.
Data Source
AI summary
The present disclosure relates to methods and apparatus for video processing. Aspects of the present disclosure can identify one or more macroblocks (MBs) in a frame including a static luminance. In some aspects, the static luminance can be a luminance value that is static for a time period. Aspects of the present disclosure can also determine whether at least one MB of the one or more MBs includes the static luminance for a time period greater than or equal or a luminance threshold duration. Also, the present disclosure can adjust the luminance value of the at least one MB based on the determination whether the at least one MB includes the static luminance for a time period greater than or equal or the luminance threshold duration. Further, the present disclosure can store, as static luminance information, the determination whether the at least one MB includes the static luminance.