Shared Partition Coding for Region-Based Video Filters
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Solution Overview
Problem
Existing region-based video filters incur significant overhead in coding segmentation information, degrading overall performance due to independent partitioning and redundancy across multiple filters.
Innovation Solution
Implement collaborative partition coding where region partition information is shared among multiple filters, optimizing it jointly based on rate-distortion cost and content statistics to reduce redundant signaling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple region based filters independently partition video frames, then each filter can adapt to local content characteristics, but the overhead bits for coding segmentation information increase significantly
Solution Approach 1:
The patent merges the segmentation functionality of multiple filters into a single collaborative partitioning process. Instead of each filter independently creating its own segmentation, a unified segmentation structure is established that serves all filters, thereby reducing redundant overhead bits while maintaining the ability to adapt to local content characteristics.
Solution Approach 2:
The patent creates a universal segmentation structure that can be used by multiple different filters simultaneously. This single segmentation framework provides multi-functional support for various filtering operations (deblocking, deartefacting, etc.), eliminating the need for separate segmentation coding for each filter type.
2Reliability
If region based filters partition video frames into multiple regions, then filtering performance improves for non-stationary signals, but the bits spent on coding segmentations degrade overall performance
Solution Approach 1:
The patent combines the segmentation processes of multiple filters into a single collaborative operation. By merging the partitioning logic and sharing the segmentation results across filters, the system maintains high filtering performance for non-stationary signals while significantly reducing the bit cost associated with encoding multiple independent segmentations.
3Adaptability or versatility
If segmentation is done independently for each filter, then each filter can optimize its own regions, but the redundancy in partition information increases overhead
Solution Approach 1:
The patent merges the independent segmentation processes into a single collaborative partitioning mechanism. This unified approach eliminates redundancy in partition information by having all filters share a common segmentation structure, thereby reducing overhead while preserving the ability to optimize filtering parameters for each filter type.
Solution Approach 2:
The patent segments the filtering system into two distinct components: a shared segmentation module that creates the partition structure, and filter-specific modules that apply their own optimization parameters to the shared regions. This segmentation of functionality allows filter-specific optimization without duplicating the segmentation process.
Data Source
AI summary
Methods and apparatus are provided for collaborative partition coding for region based filters. An apparatus includes a video encoder (100) for encoding image data for a plurality of regions in a picture. The video encoder (100) includes multiple filters for filtering the image data based on region partition information for the plurality of regions. The region partition information for the plurality of regions is shared between the multiple filters.