Video Intra Prediction Using Non-Adjacent Neighbor Coding

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Solution Overview

Problem

Existing video coding technologies, such as MPEG-2, MPEG-4, AVC, HEVC, and VVC, require further improvements in coding efficiency.

Innovation Solution

Implementing techniques for intra mode coding based on coding information of non-adjacent neighbors, including slope adjustment for cross-component linear models, gradient-based prediction, extended merge candidate lists, and intra template matching, to enhance video processing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If conventional video coding technologies (MPEG-2, MPEG-4, AVC, HEVC, VVC) are used, then video compression is achieved, but coding efficiency is insufficient and requires further improvement

Engineering Contradiction:

Improvecoding efficiencyVSAvoidcompression quality

Core Design Contradiction:

ProductivityVSLoss of information

Solution Approach 1:

The patent applies preliminary action by using coding information from non-adjacent neighbor video units (such as above-left, above-right, below-left, below-right neighbors) before encoding the current video unit. This allows the encoder to prepare prediction modes and parameters in advance based on already-decoded neighboring units, improving coding efficiency without sacrificing compression quality. The non-adjacent neighbors provide additional spatial context that enhances prediction accuracy.

Inventive Principle:

Principle #10Preliminary action

2Productivity

If intra prediction methods are improved using non-adjacent neighbor information, then coding efficiency increases, but computational complexity increases

Engineering Contradiction:

Improvecoding efficiencyVSAvoidcomputational complexity

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The patent applies local quality by selectively using coding information from specific non-adjacent neighbor positions (above-left, above-right, below-left, below-right) rather than processing all possible neighbors. Each neighbor contributes localized spatial information relevant to its direction, improving prediction accuracy for specific regions while maintaining manageable computational complexity through targeted, position-specific processing.

Inventive Principle:

Principle #3Local quality

3Measurement precision

If more neighbor video units are used for prediction, then prediction accuracy improves, but processing time increases

Engineering Contradiction:

Improveprediction accuracyVSAvoidprocessing time

Core Design Contradiction:

Measurement precisionVSLoss of time

Solution Approach 1:

The patent applies preliminary action by utilizing coding information from non-adjacent neighbor video units that have already been decoded and processed before the current video unit. This temporal ordering allows the encoder to prepare prediction modes, parameters, and candidate lists in advance based on available neighboring information, improving prediction accuracy while avoiding the time penalty of processing units in arbitrary order.

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUS20260006176A1Method, apparatus, and medium for video processing

Publication Date: 2026.01.01 DOUYIN VISION CO LTD

AI summary

Embodiments of the disclosure provide a solution for video processing. A method for video processing is proposed. The method includes: applying, for a conversion between a video unit of a video and a bitstream of the video, a process to the video unit based on coding information of a non-adjacent neighbor video unit; and performing the conversion based on the processed video unit.