Video Coding with CIIP Enhancement for Higher Compression Efficiency
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Solution Overview
Problem
Conventional video coding techniques suffer from low coding efficiency, which is undesirable for modern digital video applications.
Innovation Solution
Implementing methods that enhance video processing by applying combined inter-intra prediction (CIIP) enhancement modes, reordering and refining merge candidates, determining inter coding modes, and dynamically selecting prediction and transform modes during video unit conversions to bitstreams.
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 parameter changes by introducing a CIIP enhancement mode that modifies the prediction process parameters. The encoder dynamically selects between regular prediction and CIIP enhancement based on rate-distortion optimization, changing the operational parameters of the video coding system to improve coding efficiency while maintaining manageable complexity through conditional application.
Solution Approach 2:
The patent implements dynamics by making the prediction mode selection adaptive and dynamic. The encoder evaluates multiple prediction modes (regular inter/intra and CIIP enhancement) and dynamically chooses the optimal mode for each video unit based on current content characteristics and rate-distortion cost, allowing the system to adapt to varying video content requirements.
2Manufacturing precision
If conventional prediction modes are used, then device complexity is reduced, but manufacturing precision deteriorates
Solution Approach 1:
The patent applies segmentation by dividing the video unit into different prediction regions. The CIIP enhancement mode segments the prediction process into an inter prediction component and an intra prediction component, allowing each to be optimized independently and combined to achieve higher precision than either mode alone.
Solution Approach 2:
The patent uses the composite materials principle by combining inter prediction and intra prediction into a unified CIIP enhancement mode. This composite approach merges the strengths of both prediction types (temporal redundancy exploitation from inter and spatial redundancy exploitation from intra) to achieve superior coding precision analogous to composite materials combining properties of constituent materials.
3Productivity
If more prediction modes are implemented, then coding efficiency is improved, but ease of operation deteriorates
Solution Approach 1:
The patent applies self-service by implementing automatic mode selection that performs rate-distortion optimization without manual intervention. The encoder automatically evaluates multiple prediction modes, calculates rate-distortion costs, and selects the optimal mode for each video unit, making the complex multi-mode system as easy to operate as conventional single-mode systems.
Solution Approach 2:
The patent implements feedback through the rate-distortion optimization mechanism. The encoder evaluates prediction modes based on distortion metrics and bitrate costs, using this feedback to dynamically adjust mode selection decisions, ensuring optimal coding efficiency while maintaining straightforward operation through automated decision-making.
4Productivity
If CIIP enhancement mode is applied, then coding efficiency is improved, but loss of information increases
Solution Approach 1:
The patent applies partial action by conditionally applying CIIP enhancement only to video units where it provides benefit. The encoder evaluates each video unit and applies the enhancement mode selectively based on rate-distortion optimization, avoiding unnecessary complexity and information loss in regions where conventional prediction suffices while capturing gains where enhancement is beneficial.
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: determining, during a conversion between a video unit of a video and a bitstream of the target block, information related to a combined inter-intra prediction (CIIP) enhancement mode, the video unit being applied with the CIIP enhancement mode; and performing the conversion based on the information related to the CIIP enhancement mode.