Video Block Decoding Order for Split Lower Blocks

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Solution Overview

Problem

Existing video encoding methods face challenges in achieving high compression ratios while maintaining image quality, particularly due to the need to balance encoding information and residual data sizes across varying block sizes.

Innovation Solution

A method is provided for determining whether to split a current block and its encoding order, along with the encoding method for lower blocks, which includes obtaining split information and encoding order information from a bitstream to optimize decoding processes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of information

If block size is increased to reduce encoding information, then the amount of encoding information decreases, but prediction accuracy deteriorates

Engineering Contradiction:

Improveencoding information sizeVSAvoidprediction accuracy

Core Design Contradiction:

Loss of informationVSMeasurement precision

Solution Approach 1:

The current block is divided into multiple lower blocks (first lower block and second lower block) with different decoding orders. This segmentation allows the system to maintain larger block sizes for reduced encoding information while improving prediction accuracy by processing smaller sub-blocks with optimized decoding sequences that better capture local spatial correlations.

Inventive Principle:

Principle #1Segmentation

2Loss of energy

If compression ratio is increased to reduce data transmission, then bandwidth efficiency improves, but image quality degradation increases

Engineering Contradiction:

Improvedata transmission volumeVSAvoidimage quality

Core Design Contradiction:

Loss of energyVSManufacturing precision

Solution Approach 1:

The patent implements dynamic decoding order selection based on block characteristics. By adaptively determining whether to decode the first lower block before the second lower block or vice versa, the system optimizes reconstruction quality at each stage of the decoding process, allowing higher compression ratios while minimizing image quality degradation through context-aware processing.

Inventive Principle:

Principle #15Dynamics

3Manufacturing precision

If prediction accuracy is increased to improve image quality, then image quality improves, but encoding information size increases

Engineering Contradiction:

Improveimage qualityVSAvoidencoding information size

Core Design Contradiction:

Manufacturing precisionVSLoss of information

Solution Approach 1:

The patent applies different decoding orders to different lower blocks within the same current block based on their local characteristics and positional relationships. This local quality approach allows the system to optimize prediction accuracy for each sub-block individually while maintaining overall compression efficiency, as each block can be processed with the most appropriate decoding sequence for its specific context.

Inventive Principle:

Principle #3Local quality

Data Source

PatentUS12581111B2Encoding and decoding method and device for determining a decoding order between a left and a right lower blocks

Publication Date: 2026.03.17 SAMSUNG ELECTRONICS CO LTD

AI summary

A video decoding method includes obtaining split information indicating whether to split a current block, splitting the current block into two or more lower blocks when the split information indicates to split the current block, obtaining encoding order information indicating an encoding order of the lower blocks of the current block, determining a decoding order of the lower blocks according to the encoding order information, and decoding the lower blocks according to the decoding order.