Adaptive Rate Control for Multi-Standard Encoding
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Solution Overview
Problem
Current rate control algorithms are designed to work within specific encoding standards and cannot be used across multiple encoding standards, limiting their adaptability and flexibility in digital video processing.
Innovation Solution
A rate controller system with input and output adaptation interfaces that utilize statistical regression techniques to convert rate control parameters from a target encoding standard to native control parameters and back, allowing the rate controller to operate across multiple encoding standards.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a rate controller is designed to work within a specific encoding standard, then it can achieve optimal rate control performance for that standard, but it cannot be used with different encoding standards
Solution Approach 1:
The patent introduces adaptation interfaces as intermediary components that translate between different encoding standard parameters and the native rate controller parameters. The input adaptation interface converts parameters from the target encoding standard into the rate controller's native parameters, while the output adaptation interface converts the rate controller's output back to the target encoding standard's parameters, enabling the rate controller to work with multiple standards without modifying its core functionality
Solution Approach 2:
The rate controller is designed with universal functionality by separating the core rate control logic from the standard-specific parameter mappings. Through the adaptation interfaces, a single rate controller can serve multiple encoding standards (e.g., H.264, VC-1, MPEG-4) by simply changing the adaptation interfaces while keeping the core controller unchanged
2Adaptability or versatility
If rate control parameters are converted between different encoding standards, then the rate controller can work with multiple standards, but the complexity of the rate controller increases
Solution Approach 1:
The rate controller is segmented into distinct functional modules: the core rate controller that handles standard-specific control logic, the input adaptation interface that handles parameter conversion from target standards, and the output adaptation interface that handles parameter conversion to target standards. This segmentation allows each component to be optimized independently and simplifies the overall system by concentrating conversion logic in dedicated interfaces rather than throughout the entire controller
Data Source
AI summary
Rate control algorithms are adapted to cover multiple encoding standards. A rate controller includes an input adaptation interface, a core rate controller, and an output adaptation interface. The input adaptation interface converts rate control input parameters of a target encoding standard to corresponding native control input parameters of the rate controller. The core rate controller is coupled to the output of the input adaptation interface generating output parameters conforming to its native encoding standard. The output adaptation interface is coupled to the output of the core rate controller converting the generated output parameters to equivalent rate control output parameters conforming to the target encoding standard.