Output-Layer Parameter Set Reference for Efficient Image Decoding
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The increasing demand for high-resolution and high-quality images leads to a significant increase in transmission and storage costs due to the increased amount of information, necessitating high-efficient image compression technology.
Innovation Solution
An image encoding/decoding method and apparatus that determines whether to reference a parameter set for improved encoding/decoding efficiency, involving the generation and transmission of bitstreams, and the use of computer-readable recording media to store and decode these bitstreams for image reconstruction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If high-resolution and high-quality image data is transmitted, then image quality is improved, but transmission cost and storage cost increase
Solution Approach 1:
The patent extracts and transmits only the necessary parameter set information required for decoding, rather than transmitting complete image data. By selectively including only essential parameters in the bitstream, the transmission amount is reduced while maintaining decoding capability for high-quality image reconstruction.
Solution Approach 2:
The image data is segmented into essential parameter sets and other coding data. The patent determines reference availability of parameter sets to identify which segments are necessary for decoding, allowing selective transmission of only the critical segments required for maintaining image quality.
2Measurement precision
If parameter set is always referenced for decoding, then decoding accuracy is improved, but decoding complexity increases
Solution Approach 1:
The patent dynamically determines reference availability of parameter sets based on the specific decoding context and layer structure. Instead of always referencing parameter sets, the system adaptively decides whether to reference them based on whether the current layer is included in an output layer set, optimizing the balance between decoding accuracy and complexity for each specific case.
Solution Approach 2:
Different parts of the decoding process treat parameter set reference differently based on local requirements. The patent applies reference availability determination specifically at the layer set level, allowing parameter sets to be referenced only where necessary for maintaining decoding accuracy, rather than uniformly across all decoding operations.
3Measurement precision
If complete parameter set information is transmitted, then decoding accuracy is improved, but transmission amount increases
Solution Approach 1:
The patent extracts only the essential parameter set information that is actually required for decoding the current layer. By determining reference availability based on output layer set inclusion, the system extracts and transmits only the minimum necessary parameter information, reducing transmission amount while preserving decoding accuracy for essential parameters.
Solution Approach 2:
The patent transmits parameter set information selectively rather than completely. By applying reference availability determination, the system transmits partial parameter set information that is sufficient for maintaining decoding accuracy in essential cases, avoiding the overhead of transmitting complete parameter sets in all scenarios.
Data Source
AI summary
An image encoding/decoding method and apparatus is provided. An image decoding method performed by an image decoding apparatus comprises determining reference availability of the parameter set for decoding the image coding data and decoding the image coding data based on the reference availability.