Personalized 3D Face Mesh Finetuning Using Texture Displacement

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Solution Overview

Problem

Existing 3D modeling systems face challenges in generating high-quality, detailed 3D face models efficiently, particularly in capturing facial expressions and textures, due to the separation of texture generation and mesh fitting processes, which limits the quality of generated avatars.

Innovation Solution

Integrating texture generation and mesh fitting processes using machine learning models to produce a facial texture and displacement map, allowing for a personalized, deformable mesh by finetuning on personalized textures, thereby compensating for limitations in mesh fitting and texture generation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If texture generation and mesh fitting processes are separated, then device complexity is reduced, but manufacturing precision deteriorates

Engineering Contradiction:
Improveprocess complexityVSAvoidmodel quality
Core Design Contradiction:
Device complexityVSManufacturing precision

Solution Approach 1:

The patent combines texture generation and mesh fitting into a single integrated process where a neural network simultaneously processes input images to generate both the mesh structure and texture information. This unified approach allows the two previously separate processes to work together synergistically, improving the overall quality and consistency of the 3D face model while maintaining manageable system complexity.

Inventive Principle:
Principle #5Merging (Combining)

2Loss of time

If traditional mesh fitting is used without texture finetuning, then processing time is reduced, but measurement precision deteriorates

Engineering Contradiction:
Improveprocessing timeVSAvoidfacial detail accuracy
Core Design Contradiction:
Loss of timeVSMeasurement precision

Solution Approach 1:

The patent performs preliminary texture generation using a neural network to create an initial texture map from input images. This preliminary texture information is then used to guide and constrain the mesh fitting process, ensuring that the mesh accurately captures facial details while the texture provides a reference for verification. This preliminary action enables faster processing compared to traditional iterative methods while maintaining high precision.

Inventive Principle:
Principle #10Preliminary action

3Measurement precision

If expensive equipment and controlled lighting are used, then measurement precision is improved, but device complexity increases

Engineering Contradiction:
Improvetexture qualityVSAvoidequipment requirements
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent replaces complex mechanical and optical systems (expensive cameras, controlled lighting equipment) with a computational approach using neural networks. The system processes standard images through learned models to extract high-quality texture and geometric information, achieving comparable or superior results to traditional photogrammetry methods while eliminating the need for specialized hardware and controlled environments.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Data Source

PatentUS12573151B2Personalized deformable mesh by finetuning on personalized texture
Publication Date: 2026.03.10 QUALCOMM INC
  • US12573151B2 patent drawing
  • US12573151B2 patent drawing
  • US12573151B2 patent drawing

AI summary

Techniques and systems are provided for generating a three-dimensional facial model. For instance, a process can include: obtaining a frame, the frame including a face; obtaining a mesh 3D model of the face; generating facial texture information associated with the face based on the frame and the mesh 3D model; generating, based on the facial texture information, displacement map information; and applying the displacement map information to the mesh 3D model to generate a finetuned mesh 3D model.