Decoder Selective Region Quality Enhancement
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Solution Overview
Problem
Existing decoder devices face challenges in efficiently managing image or video quality, particularly in virtual reality applications where real-time processing is crucial, as they often require feedback to encode regions of interest at different quality levels, leading to increased data transmission and limited control over quality levels, which can impact user experience and resource usage.
Innovation Solution
A decoder device that receives data for representing a signal at a first level of quality and enhancement data for a higher level, allowing it to selectively generate data for a target region at a higher quality using a selected portion of the enhancement data and a further region at a lower quality, thereby optimizing resource usage and eliminating the need for feedback to the encoder.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If feedback is used to encode regions of interest at different quality levels, then image quality in target regions is improved, but data transmission increases and device complexity increases
Solution Approach 1:
The patent segments the image into multiple regions with different quality levels. Enhancement data is selectively applied only to target regions (e.g., regions of interest) while other regions maintain base quality. This segmentation allows high image quality in important areas without requiring full high-quality encoding of the entire image, thereby reducing overall data transmission requirements.
Solution Approach 2:
The patent implements local quality enhancement by applying enhancement data selectively to specific target regions rather than uniformly across the entire image. The decoder receives base quality data for all regions and enhancement data for specific regions, allowing it to reconstruct high-quality versions only where needed. This local quality approach improves image quality in critical areas while minimizing the quantity of enhancement data that must be transmitted.
2Measurement precision
If feedback mechanisms are implemented for quality control, then decoding accuracy is improved, but device complexity and processing overhead increase
Solution Approach 1:
The patent employs preliminary action by pre-identifying target regions and preparing enhancement data for those regions before decoding occurs. The encoder pre-processes the image to determine which regions require enhancement and prepares corresponding enhancement data in advance. This eliminates the need for complex real-time feedback mechanisms during decoding, as the decoder simply applies the pre-prepared enhancement data to the identified target regions, thereby improving decoding accuracy without significantly increasing processing overhead.
3Manufacturing precision
If high quality data is transmitted for all regions, then overall image quality is improved, but resource consumption and data transmission increase
Solution Approach 1:
The patent applies partial action by transmitting base quality data for all image regions and enhancement data only for target regions. The decoder reconstructs high-quality versions only for these target regions while maintaining base quality for other regions. This partial enhancement approach achieves acceptable overall image quality without the excessive resource consumption that would result from transmitting and processing full high-quality data for the entire image, thereby optimizing the balance between image quality and resource consumption.
Data Source
AI summary
A decoder device receives data useable to generate data for representing a data signal at a first level of quality. The decoder device receives enhancement data useable to generate data for representing the data signal at a second, higher level of quality based on the data for representing the data signal at the first level of quality. The decoder device generates data for representing a target region of the data signal at a target level of quality using a selected portion of the received enhancement data. The selected portion is associated with the target region. The target level of quality is higher than the first level of quality. The decoder device generates data for representing a further region of the data signal at a level of quality that is lower than the target level of quality.