Mixed Resolution Video Processing for Bandwidth Reduction
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Solution Overview
Problem
Current video processing technologies face challenges in transmitting high-quality video in environments with limited resources or poor conditions, leading to issues like low resolution and increased bandwidth pressure, especially when decoding video data.
Innovation Solution
A video processing method that involves coding and decoding an original video to obtain a mixed resolution video, where key frames are maintained at a higher resolution and non-key frames are downsampled, allowing for amplification using information from key frames to achieve high-quality video output with reduced bandwidth pressure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If the whole video is compressed to a large extent, then the resource occupation during transmission is reduced, but the decoded video will have low resolution and poor quality
Solution Approach 1:
The patent segments video frames into key frames and non-key frames, applying different compression strategies to each type. Key frames are compressed at higher resolution while non-key frames are compressed at lower resolution, then non-key frames are amplified using key frame information. This segmentation allows the system to reduce overall data volume while maintaining quality where needed.
Solution Approach 2:
The patent applies local quality by maintaining high resolution for key frames (which contain important scene information) while using low resolution for non-key frames. The amplification process then restores quality to non-key frames using key frame references, creating a non-uniform resolution distribution that optimizes both bandwidth usage and perceived quality.
2Manufacturing precision
If key frames are maintained at high resolution, then video quality is improved, but bandwidth pressure increases
Solution Approach 1:
The patent applies partial action by only maintaining high resolution for key frames rather than all frames. Non-key frames are transmitted at lower resolution and only amplified when necessary. This partial high-resolution approach reduces overall bandwidth consumption compared to transmitting everything at high resolution, while still providing quality where most needed.
3Quantity of substance
If non-key frames are downsampled to reduce data volume, then transmission resources are saved, but video quality deteriorates
Solution Approach 1:
The patent uses key frames as intermediary references to restore the quality of downsampled non-key frames. The amplification process uses key frame information as a mediator to reconstruct high-quality non-key frames from their low-resolution versions, effectively compensating for the quality loss during downsampling while maintaining reduced data volume.
Data Source
AI summary
The present application provides a video processing method, a device, and a storage medium. The method includes: coding and decoding an original video to obtain a mixed resolution video, where the mixed resolution video includes a first resolution frame and a second resolution frame each corresponding to a key frame, and a third resolution frame corresponding to a non-key frame, where the first resolution frame has a resolution higher than a resolution of the second resolution frame or a resolution of the third resolution frame; and amplifying, according to the first resolution frame and the second resolution frame, the third resolution frame corresponding to the non-key frame to output an amplified video, where the amplified video includes the first resolution frame corresponding to the key frame, and an amplified target frame corresponding to the non-key frame.