HDR Video Display Processing With Coupled Decoding Verification
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Solution Overview
Problem
The verification of display processing algorithms for HDR video is time-consuming and inefficient due to the need for separate decoding and display processing without considering their coupling, leading to repeated iterative development and long development cycles.
Innovation Solution
A method and device that couple decoding and display processing by using metadata and characteristic panel parameters to optimize the display processing algorithm iteratively, ensuring alignment with decoding modules and reducing development time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If separate decoding and display processing are performed without considering their coupling, then each module can be developed independently, but the verification process becomes time-consuming and inefficient with repeated iterative development
Solution Approach 1:
The patent merges the decoding module and display processing algorithm into a unified verification framework. The decoding module outputs decoded video frames that are directly fed into the display processing algorithm for processing, eliminating the need for separate verification steps. This integration allows simultaneous development and verification of both modules, reducing the iterative development cycle while maintaining independent module architecture.
Solution Approach 2:
The patent implements preliminary action by pre-processing decoded video frames through the display processing algorithm before final verification. The system performs preliminary processing steps including gamut conversion and tone mapping in advance, allowing the verification process to catch issues early in the development cycle rather than during final testing, thereby reducing overall verification time.
2Manufacturing precision
If iterative development with multiple verification cycles is performed, then the display processing algorithm can be optimized, but the development cycle becomes longer
Solution Approach 1:
The patent implements feedback mechanisms by automatically comparing processed video frames against reference frames and evaluating display quality metrics. The verification system provides real-time feedback on algorithm performance, allowing developers to identify and correct issues in each iteration without completing full verification cycles, thereby optimizing the algorithm while shortening the development cycle.
Solution Approach 2:
The system performs preliminary processing and verification steps during each iteration, including pre-computation of processing parameters and early detection of algorithmic errors. This allows multiple optimization iterations to be completed more efficiently by catching and correcting issues before they propagate through the entire development cycle.
3Manufacturing precision
If HDR processing is performed on each image frame sequentially, then processing precision can be maintained, but the processing speed is limited to 1-2 frames per second
Solution Approach 1:
The patent combines multiple processing operations into unified verification workflows. The decoding, gamut conversion, tone mapping, and quality verification steps are merged into a single integrated pipeline that processes multiple frames concurrently, maintaining high processing precision while achieving frame rates of 1-2 frames per second through efficient resource utilization.
Solution Approach 2:
The system performs partial verification on representative frames rather than all frames, and uses excessive processing power for critical processing steps. This allows the system to maintain high processing precision for essential HDR operations while reducing the number of sequential processing operations, thereby increasing overall processing speed.
Data Source
AI summary
A method for optimizing HDR video display processing, comprises: acquiring original video stream data; decoding the original video stream data to obtain metadata and image frame data of each image frame; in an m-th iteration, for each image frame, according to a characteristic parameter of a target display panel and the metadata, performing HDR processing on the image frame data by using an HDR video display processing algorithm, to obtain the image frame data subjected to HDR processing and corresponds to the original video stream data in the m-th iteration; and according to a playing display detection result, on the target display panel, of the image frame data that has been subjected to HDR processing and is obtained in the m-th iteration, optimizing an algorithm used in an (m+1)th iteration until the optimization of the HDR video display processing algorithm is completed.