Scene-Switch Picture Frame Downsampling for Smooth Transitions
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Solution Overview
Problem
The transmission of large data volumes of scene-switched picture frames in application clients results in low code stream transmission speed, leading to non-fluent display.
Innovation Solution
Downsampling of picture frames with data volumes greater than a threshold to reduce their resolution, followed by coding and transmitting the adjusted frames, and subsequent upscaling at the client to maintain picture quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the application server directly transmits the code stream of the original picture frame, then the picture quality is maintained, but the code stream transmission speed is low causing non-fluent display
Solution Approach 1:
The patent changes the resolution parameter of the picture frame by performing downsampling to reduce the data volume. The code stream is generated from a downsampled picture frame with lower resolution, which reduces transmission data量 and improves transmission speed. The client then performs upsampling to restore the resolution, thereby balancing transmission efficiency with picture quality.
2Productivity
If downsampling is performed to reduce data volume, then transmission speed improves, but the resolution is reduced
Solution Approach 1:
The server performs downsampling in advance before generating the code stream, creating a preliminary adjusted picture frame with reduced resolution. This preliminary action reduces the data volume that needs to be transmitted. The client then performs the reverse operation (upsampling) to restore the original resolution, thereby achieving efficient transmission without permanent loss of picture quality.
3Loss of time
If the data volume of scene-switched picture frames is reduced, then transmission fluency improves, but the original picture frame resolution is lost
Solution Approach 1:
The patent introduces a temporal dimension to the resolution handling process. Instead of permanently reducing resolution, the server temporarily reduces resolution for transmission purposes, and the client restores it after reception. This dimensional approach to resolution management allows the system to optimize transmission speed without permanently sacrificing picture quality, effectively trading spatial resolution temporarily for temporal fluency.
Data Source
AI summary
This application discloses a data processing method performed by a computer device. The method includes: detecting a data volume of a first picture frame after being coded; in response to the data volume of the first picture frame being greater than or equal to a data volume threshold, performing downsampling on the first picture frame to obtain a first adjusted picture frame; coding the first adjusted picture frame to obtain a picture frame code stream of the first adjusted picture frame; and transmitting the picture frame code stream to an application client at a terminal for decoding the picture frame code stream to obtain a first adjusted picture frame, which is then upsampled to the same resolution as the first picture frame and displayed accordingly.