Conditional Picture Compression for Bandwidth Reduction
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Solution Overview
Problem
The existing picture sharing methods occupy a significant amount of network bandwidth due to the large size of pictures stored on servers, leading to inefficient data transfer during download processes.
Innovation Solution
A method that compresses pictures in a first compression manner and, upon analysis of characteristic information, applies a second compression with a higher compression ratio when specific conditions are met, allowing for efficient data transfer by returning a compressed picture in response to download requests.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If pictures are stored in original size on the server, then picture quality is maintained, but network bandwidth is significantly occupied during download
Solution Approach 1:
The patent changes the compression parameter by applying a second compression manner with higher compression ratio to the already compressed picture, transforming the picture size parameter while maintaining acceptable quality. This resolves the contradiction by allowing bandwidth reduction through parameter adjustment without completely sacrificing picture quality.
Solution Approach 2:
The patent applies compression selectively based on characteristic information - only pictures meeting the compression trigger condition undergo second compression. This partial action approach reduces overall bandwidth consumption while maintaining quality for pictures that don't meet the compression criteria, resolving the bandwidth-quality contradiction.
2Loss of energy
If pictures are compressed with high compression ratio, then network bandwidth is reduced, but picture quality deteriorates
Solution Approach 1:
The patent performs preliminary compression (first compression manner) before storage, and then conditionally applies additional compression (second compression manner) based on characteristic information analysis. This preliminary action ensures that compression is applied in stages, reducing bandwidth while monitoring quality through characteristic information to avoid excessive quality deterioration.
Solution Approach 2:
The patent uses characteristic information as feedback to determine whether to apply the second compression manner. By analyzing picture characteristics and comparing against compression trigger conditions, the system provides feedback control that prevents unnecessary compression of already optimized pictures, thus maintaining quality while reducing bandwidth where appropriate.
3Productivity
If characteristic analysis is performed on every picture, then compression decisions are optimized, but processing time increases
Solution Approach 1:
The patent applies different processing quality levels to different pictures based on their characteristic information. Pictures meeting the compression trigger condition receive full characteristic analysis and conditional compression, while others receive standard processing. This local quality approach optimizes compression efficiency for suitable pictures without wasting processing time on pictures that don't benefit from additional compression.
Data Source
AI summary
This application relates to a picture sharing method, a computer device, and a storage medium. The method includes: receiving a picture compressed in a first compression manner; obtaining characteristic information of the picture; compressing the picture in a second compression manner in a case that the characteristic information meets a compression trigger condition, to obtain a compressed picture; receiving a picture download request for the picture, wherein the second compression manner has a higher compression ratio than the first compression manner; and returning the compressed picture in response to the picture download request. The solutions of this application reduce a network bandwidth occupied in a picture feedback process.