Flexible Display Video Decoding for Visible-Region Efficiency
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Solution Overview
Problem
Existing video coding technologies waste decoding resources on undisplayed portions of flexible display screens, such as folding screens, leading to inefficiency and reduced user experience.
Innovation Solution
A video data processing method that uses a first inter-prediction mode to derive motion vectors based on a basic area corresponding to a display mode, allowing partial decoding of bitstreams according to the displayed area, thereby reducing resource consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If full video decoding is performed for flexible display screens, then complete video quality is maintained, but decoding resources are wasted on undisplayed portions
Solution Approach 1:
The video frame is divided into a display area and a non-display area. The encoder separately encodes these two regions, and the decoder only decodes the display area, achieving segmentation of the decoding process to eliminate waste of resources on non-displayed portions.
Solution Approach 2:
Instead of decoding the entire video frame, the system performs partial decoding only on the display area portion that will actually be shown on the flexible display screen, reducing unnecessary decoding operations while maintaining sufficient video quality for the visible region.
2Device complexity
If motion vectors are derived from the entire video frame, then accurate motion compensation is achieved, but processing complexity increases for undisplayed areas
Solution Approach 1:
The motion vector derivation is performed locally within the display area using local reference pixels, rather than using the entire frame. This local approach reduces processing complexity while maintaining motion vector accuracy for the displayed region, as the motion characteristics are captured sufficiently within the local area.
Data Source
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AI summary
A video data processing method and a video data processing device, a display device, and a storage medium. The method comprises: for a current video block of a video, determining to use a first inter-frame prediction mode for encoding and decoding (S101); on the basis of the determination, performing conversion between the current video block and a bitstream of the video, wherein the derivation of a motion vector of the current video block in the first inter-frame prediction mode is based on a basic region, corresponding to a first display mode, in the video (S102). By means of the method, the bitstream can be partially decoded according to a region which actually needs to be displayed, thereby reducing the decoding resource consumption of the undisplayed part and improving the encoding and decoding efficiency.