ENCODER, DECODER, AND CORRECTED METHODS FOR INTER-PREDICTION

IDP000106496BActive Publication Date: 2026-07-16HUAWEI TECH CO LTD

Patent Information

Authority / Receiving Office: ID · ID
Patent Type: Patents
Current Assignee / Owner: HUAWEI TECH CO LTD
Filing Date: 2019-12-20
Publication Date: 2026-07-16

AI Technical Summary

Technical Problem

Existing video coding technologies face challenges in achieving high compression ratios with minimal image quality sacrifice, particularly in the context of limited network bandwidth and storage resources.

Method used

A scheme for constructing a search space for motion vector refinement is introduced, involving the use of an initial motion vector to determine a central search position and adjacent positions, with a cost function to select a target position based on minimal matching cost, optimizing the motion vector refinement process.

Benefits of technology

This approach enhances video encoding and decoding efficiency by improving compression ratios without significantly degrading image quality, addressing the limitations of existing technologies in bandwidth-constrained and storage-limited environments.

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Abstract

An inter-prediction method, comprising: obtaining an initial motion vector for the current block; determining a search space position according to the initial motion vector; checking the matching cost of the search space position according to the inspection sequence to select a target search space position with minimal matching cost; and determining a refinement motion vector of the current block based on the initial motion vector and the target search space position, wherein the central search space position is checked first according to the inspection sequence, and wherein the central search space position is indicated by the initial motion vector.

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