Image Encoding Motion Vector Prediction With Adjustment Offsets

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Existing image encoding/decoding methods require performance improvements, particularly in image processing, to meet the demands of multimedia data handling in modern systems.

Innovation Solution

An image encoding/decoding apparatus that modifies a motion vector predictor using an adjustment offset, constructing a motion information prediction candidate list, selecting a prediction candidate index, and deriving a prediction motion vector adjustment offset based on offset information.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If existing image encoding/decoding methods are used, then the system can process multimedia data, but the performance and efficiency of the image processing system are insufficient

Engineering Contradiction:

Improveimage processing efficiencyVSAvoidcoding performance

Core Design Contradiction:

ProductivityVSReliability

Solution Approach 1:

The patent modifies motion vector prediction by introducing adjustment offsets to change the parameters of motion vector calculation. Specifically, it derives prediction motion vector adjustment offsets based on block characteristics and applies them to refine the prediction motion vectors, thereby improving coding accuracy without fundamentally changing the encoding framework

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent replaces traditional motion vector prediction mechanisms with an improved system that uses adjustment offsets. Instead of relying solely on conventional prediction methods, it substitutes them with a refined approach that calculates and applies offsets based on block-specific characteristics, enhancing prediction accuracy

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Manufacturing precision

If motion vector prediction is improved by adding adjustment offsets, then coding performance is enhanced, but the complexity of the encoding/decoding process increases

Engineering Contradiction:

Improvecoding performanceVSAvoidencoding process complexity

Core Design Contradiction:

Manufacturing precisionVSDevice complexity

Solution Approach 1:

The patent segments the motion vector prediction process into distinct stages: generating initial prediction motion vectors, deriving adjustment offsets based on block characteristics, and applying the offsets to obtain refined prediction motion vectors. This segmentation allows for targeted improvements without overwhelming complexity

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent introduces prediction motion vector adjustment offsets as an intermediary element between the initial prediction motion vectors and the final motion vectors. These offsets act as a mediator that refines the prediction accuracy without requiring complete reorganization of the encoding process

Inventive Principle:

Principle #24Intermediary (Mediator)

Data Source

PatentUS20250330608A1Image encoding/decoding method and device

Publication Date: 2025.10.23 INST OF IMAGE TECH INC

AI summary

An image encoding/decoding method and device, according to the present invention, comprises the steps of: configuring a motion information candidate list of a target block; selecting a candidate index from the motion information candidate list; deriving an offset for adjusting a motion vector; and recovering a motion vector of the target block through a predicted motion vector recovered on the basis of the offset.