Video Encoder Header Omission for Layer-Parameter Mapping
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Solution Overview
Problem
Existing video coding technologies face challenges in efficiently processing increasing amounts of digital video data, particularly in optimizing coding efficiency, image quality, and reducing processing amounts and circuit scale.
Innovation Solution
An encoder and decoder implementation that determines whether a determined relationship between the total number of layer groups and the total number of parameters is satisfied, the encoder and decoder can reduce the code amount by omitting the storage of information indicating the correspondence relationship in a common header shared between layers in the encoder and decoder.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the correspondence relationship between parameters and layer groups is stored in the common header, then the decoder can accurately interpret the parameters, but the code amount increases
Solution Approach 1:
The patent extracts the correspondence relationship information from the common header and eliminates it. By determining the correspondence relationship through the structure of layer groups and parameters themselves (where each layer group has a corresponding parameter in a predetermined order), the patent removes the need to store this information in the header, thereby reducing the code amount while maintaining accurate parameter interpretation.
Solution Approach 2:
The layer groups and parameters self-define their correspondence relationship through their structural arrangement. The system uses the predetermined ordering and structural relationship between layer groups and parameters to automatically establish the correspondence, eliminating the need for external storage of correspondence information in the common header.
2Adaptability or versatility
If more parameters are added to specify layer group correspondences, then the coding flexibility improves, but the processing complexity increases
Solution Approach 1:
The patent segments the parameter-list syntax into separate syntaxes for different scenarios: one where the correspondence relationship is stored in the common header, and another where it is determined through the structural relationship between layer groups and parameters. This segmentation allows the system to use the simpler approach when conditions permit, reducing processing complexity while maintaining coding flexibility when needed.
Solution Approach 2:
The patent changes the approach to parameter specification by switching from storing correspondence relationships as explicit parameters in the common header to determining correspondence through the structural arrangement and ordering of layer groups and parameters. This parameter change reduces the number of parameters to be processed while maintaining the ability to specify layer group correspondences.
Data Source
AI summary
An encoder includes circuitry and memory coupled to the circuitry. In operation, the circuitry determines whether a determined relationship between a total number of one or more layer groups and a total number of one or more parameters is satisfied. The one or more layer groups each include at least one output layer, and the one or more parameters each indicate a performance requirement for a decoder. When the determined relationship is satisfied, the circuitry determines, using a determined method, a correspondence relationship for associating any of the one or more parameters with each of the one or more layer groups, and omits storing information indicating the correspondence relationship in a common header shared between layers in the one or more layer groups.