Face Mesh Deformation Fields for Real-Time Facial Feature Modification

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Solution Overview

Problem

Conventional methods for modifying facial features in digital images often result in visible distortion and require cumbersome iterative inputs, leading to user dissatisfaction and limited real-time processing capabilities due to memory and processor constraints.

Innovation Solution

An image processing application that generates an updated face mesh using deformation fields, allowing for realistic and fluid modifications by assigning normalized coordinates to landmark points and additional points, enabling natural and life-like deformations with fewer resources.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If conventional warping techniques are used to enlarge facial features, then the selected area can be modified, but visible distortion and unrealistic appearance occur in surrounding areas

Engineering Contradiction:
Improvefacial feature modification capabilityVSAvoidfacial feature distortion
Core Design Contradiction:
Adaptability or versatilityVSManufacturing precision

Solution Approach 1:

The face is divided into multiple mesh regions with landmark points defining specific facial features. Each region can be independently deformed using separate deformation fields, allowing localized modification of selected features while preserving the natural appearance of surrounding areas. The mesh segmentation enables precise control over which areas are affected by warping operations.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Different deformation fields are applied to different regions of the face based on local requirements. The system assigns normalized coordinates and deformation parameters specifically to landmark points and mesh elements in the selected area, allowing high-quality realistic deformation of the target feature while maintaining natural appearance in non-selected regions.

Inventive Principle:
Principle #3Local quality

2Ease of operation

If multiple controls are used to achieve desired modification in conventional systems, then more comprehensive control is possible, but the operation becomes cumbersome and requires iterative inputs

Engineering Contradiction:
Improvemodification process simplicityVSAvoiditerative input time
Core Design Contradiction:
Ease of operationVSLoss of time

Solution Approach 1:

Multiple deformation fields are combined into a unified face mesh model. The system integrates deformation parameters from different facial feature modifications into a single coordinated transformation, allowing users to achieve comprehensive facial feature modifications through fewer inputs. The combined deformation fields work together to produce realistic results without requiring separate iterative adjustments for each feature.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The system provides real-time visual feedback by displaying the updated face mesh with combined deformation fields applied. This allows users to see the effect of modifications immediately and make single adjustments rather than requiring multiple iterative inputs. The feedback mechanism enables the system to automatically adjust and refine the deformation based on the combined fields.

Inventive Principle:
Principle #23Feedback

3Productivity

If conventional systems process facial feature modifications, then modifications can be achieved, but memory and processor limitations prevent real-time processing

Engineering Contradiction:
Improvereal-time processing capabilityVSAvoidmemory and processing resources
Core Design Contradiction:
ProductivityVSQuantity of substance

Solution Approach 1:

The face mesh is segmented into discrete regions with landmark points, allowing the system to process and store only the essential deformation parameters for each region rather than entire image data. This segmentation reduces memory requirements and enables faster processing by focusing computational resources on key facial feature points and their associated deformation fields.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The system transforms facial feature modifications into mathematical deformation field parameters and normalized coordinates rather than manipulating entire image pixel data. This parameter-based approach significantly reduces computational complexity and memory usage, enabling real-time processing of facial feature modifications while maintaining high quality results.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS10223767B2Facial feature liquifying using face mesh
Publication Date: 2019.03.05 ADOBE INC
  • US10223767B2 patent drawing
  • US10223767B2 patent drawing
  • US10223767B2 patent drawing

AI summary

In embodiments of facial feature liquifying using face mesh, an image processing application is implemented to modify facial features of a face in an image from a combination of deformation fields. The image processing application can generate a face mesh that includes landmark points, and then construct the deformation fields on the face mesh, where the deformation fields are defined by warpable elements formed from the landmark points. The image processing application can also combine the deformation fields. The image processing application can also receive an input to initiate modifying one or more of the facial features of the face in the image using the combined deformation fields.