Adaptive Image Compression for Transmission Speed and Quality
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Solution Overview
Problem
Existing image transmission methods face challenges in achieving high-speed transmission while minimizing image distortion, as they often require dynamic compression ratio adjustments that can lead to incorrect determinations of natural image regions and result in either slow transmission or image degradation.
Innovation Solution
A transmitting apparatus that employs change detection to dynamically adjust compression ratios based on image changes, using a time management system to compress images more heavily when changes are detected and less heavily when stability is confirmed, thereby optimizing compression for high-speed transmission without significant distortion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If high compression ratio is applied to achieve fast transmission, then transmission speed is improved, but image distortion increases
Solution Approach 1:
The patent applies dynamics by making the compression ratio adjustable based on real-time change detection. The system dynamically switches between high compression ratio (for fast transmission when changes are detected) and low compression ratio (for high quality when image is stable), resolving the contradiction between transmission speed and image quality through adaptive control
Solution Approach 2:
The patent changes the compression ratio parameter based on detected image changes. When changes are detected, the system switches to high compression ratio to improve transmission speed. When the image is stable, it uses low compression ratio to maintain quality, thus adapting the parameter to resolve the contradiction between speed and quality
2Adaptability or versatility
If compression ratio is frequently adjusted to adapt to image changes, then transmission adaptability is improved, but processing time increases
Solution Approach 1:
The patent uses feedback from change detection to control compression ratio adjustment. The system continuously monitors image changes and only adjusts compression ratio when actual changes are detected, avoiding unnecessary processing. This feedback mechanism resolves the contradiction by enabling adaptability only when needed, reducing overall processing time
3Measurement precision
If histogram processing is used to detect natural image regions, then image classification accuracy is improved, but processing time increases
Solution Approach 1:
The patent extracts only the essential information needed for change detection rather than performing complete histogram processing on the entire image. By focusing on detecting actual changes rather than comprehensive analysis, the system reduces processing time while maintaining sufficient accuracy for compression ratio selection
Data Source
AI summary
In an image processing method of sequentially loading, compressing, and transmitting images to thereby display the images, there is provided the image processing method capable of preventing the images from degradation while keeping the responsibility until the image is displayed. When a changed region is determined to be present, the image is compressed using a method with a high compression ratio, while when there is no changed region and a predetermined period of time elapses, the image is determined to be static to thereby be compressed using a method with a low compression ratio and very little distortion.