Grid-Based Virtual Avatar Rendering for Accurate Face Mapping

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Solution Overview

Problem

Existing virtual avatar rendering technologies are limited by preset libraries, leading to inaccurate representation of real faces.

Innovation Solution

A method and apparatus that convert facial image components into grid components, generating a virtual avatar based on these grid images, allowing for dynamic rendering and improved representation of real faces.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If a preset library matching method is used to generate virtual avatars, then the rendering process is simplified and faster, but the accuracy and fidelity of representing real faces deteriorates

Engineering Contradiction:

Improverendering speedVSAvoidface representation accuracy

Core Design Contradiction:

ProductivityVSManufacturing precision

Solution Approach 1:

The facial image is segmented into multiple components including skin components and facial feature components. Each component is processed separately through grid conversion, allowing the system to maintain both processing efficiency and representation accuracy by handling different facial elements independently rather than matching from a preset library

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent transitions from a static preset library approach to a dynamic grid-based rendering system. The grid image is generated dynamically from the actual facial image components, enabling the virtual avatar to accurately represent the specific real face being rendered rather than selecting from pre-defined options

Inventive Principle:

Principle #15Dynamics

2Device complexity

If a preset library is used for avatar generation, then device complexity is reduced, but the ability to represent diverse and accurate facial features deteriorates

Engineering Contradiction:

Improvesystem complexityVSAvoidfacial feature representation

Core Design Contradiction:

Device complexityVSAdaptability or versatility

Solution Approach 1:

The patent replaces the mechanical approach of selecting from a preset library with an image processing approach using grid conversion. By converting facial image components into grid components and rendering based on these grids, the system achieves versatile facial feature representation through algorithmic processing rather than relying on a fixed library of pre-defined avatars

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Data Source

PatentUS12511821B2Virtual avatar rendering method and apparatus, electronic device, and storage medium

Publication Date: 2025.12.30 BEIJING ZITIAO NETWORK TECH CO LTD

AI summary

Embodiments of the present disclosure disclose a virtual avatar rendering method and apparatus, an electronic device, and a storage medium. The method includes: obtaining at least one component in a facial image; obtaining a grid image corresponding to the facial image by converting the at least one component into a grid component; and generating a virtual avatar based on the grid image and rendering the virtual avatar.