3D Face Reconstruction for Realistic Character Customization
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Solution Overview
Problem
Existing methods for creating game characters based on facial data result in significant differences between the rendered characters and the control person's face, lacking in customization freedom and realism.
Innovation Solution
A face processing method that determines initial and target character customization parameter information using three-dimensional face reconstruction coefficients and face posture information, trained through a character customization parameter prediction model and a parameter integration model, to enhance the similarity and realism of virtual characters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional face processing methods are used to create game characters, then the character creation process is simple, but the rendered characters show significant differences from the control person's face
Solution Approach 1:
The patent segments the face processing into multiple independent modules: face detection module, landmark detection module, 3D reconstruction module, and character rendering module. Each module processes specific aspects of face data separately, then integrates results to achieve high-fidelity character creation while maintaining manageable system complexity through modular architecture
Solution Approach 2:
The patent introduces intermediate processing elements including facial landmark points as mediators between 2D face images and 3D reconstruction, and uses 3D morphable models as intermediaries to bridge raw face data and final character rendering. These intermediaries enable accurate face-to-character transformation while providing structured data flow
2Adaptability or versatility
If basic character customization is used, then the customization process is fast, but the degree of customization freedom is limited
Solution Approach 1:
The patent performs preliminary actions by pre-computing 3D face reconstruction models and storing them as reusable templates. Facial landmark detection and 3D model fitting are performed in advance, allowing rapid character customization without repeated heavy computation. The system prepares multiple basis vectors and model variations beforehand for quick selection and adjustment
Solution Approach 2:
The patent enables extensive customization freedom through parameter adjustment of 3D face models, including shape parameters, texture parameters, and geometric transformations. Users can modify multiple independent parameters (facial proportions, features, expressions) without regenerating the entire model, achieving high adaptability with efficient parameter-based control
3Reliability
If simple face rendering is used, then the rendering process is quick, but the realism of the virtual character is poor
Solution Approach 1:
The patent creates accurate copies of the control person's face by mapping detected facial landmarks and extracted features onto 3D character models. The system replicates facial geometry, texture, and key point positions with high fidelity, producing realistic virtual character faces that closely match the original person while using efficient copying techniques rather than complex generative processes
Data Source
AI summary
The present disclosure provides a face processing method and apparatus, a computer device, and a storage medium. The method includes: obtaining three-dimensional face reconstruction coefficients of a three-dimensional face reconstruction model corresponding to face driving image data, and face posture information; determining initial character customization parameter information based on the face driving image data; and determining target character customization parameter information of the face driving image data based on the initial character customization parameter information, the three-dimensional face reconstruction coefficients, and the face posture information.