Adaptive Video Filter Combination for Coding Efficiency
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Solution Overview
Problem
Conventional video coding techniques, such as MPEG-2, MPEG-4, ITU-T.263, ITU-T.264/AVC, HEVC, and VVC, suffer from low coding efficiency, which is undesirable for digital video applications.
Innovation Solution
A method and apparatus for video processing that applies a combination of filters adaptively to improve coding efficiency, involving a processor and memory with instructions to perform the filtering process, generating a bitstream from the filtered video units.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional video coding techniques are used, then device complexity is reduced, but coding efficiency deteriorates
Solution Approach 1:
The patent applies adaptive filtering where the filter type and parameters are dynamically selected based on the characteristics of each video block. The filtering process transitions from static conventional methods to dynamic adaptive methods, allowing the system to optimize coding efficiency for different content types while managing complexity through selective application.
Solution Approach 2:
The patent changes filtering parameters adaptively based on video content characteristics. Different filter strengths, types, and configurations are applied to different video blocks depending on their properties (e.g., texture complexity, motion content), thereby improving coding efficiency without uniformly increasing device complexity across all blocks.
2Productivity
If adaptive filtering is applied, then coding efficiency is improved, but device complexity increases
Solution Approach 1:
The patent applies different filtering qualities to different regions of the video content. High-complexity adaptive filtering is applied only where needed (e.g., blocks with specific characteristics), while simpler or no filtering is applied elsewhere. This local differentiation improves overall coding efficiency while limiting the increase in device complexity to only the necessary regions.
3Manufacturing precision
If multiple filters are combined, then video quality is improved, but processing complexity increases
Solution Approach 1:
The patent combines multiple filtering operations into a unified adaptive filtering framework. Instead of applying separate filters independently, the patent merges them into a coordinated process where filter selection and parameter adjustment are integrated, reducing processing complexity compared to applying multiple independent filters while maintaining video quality improvements.
Data Source
AI summary
Embodiments of the present disclosure provide a solution for video processing. A method for video processing is proposed. The method comprises: applying, during a conversion between a video unit of a video and a bitstream of the video unit, a plurality of filters in combination to the video unit; and performing the conversion based on the filtered video unit.