Facial Movement Avatar Animation With Low-Complexity Control

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Solution Overview

Problem

Existing techniques for displaying visual effects on electronic devices are cumbersome and inefficient, requiring complex user interfaces and consuming excessive time and device energy, particularly in battery-operated devices.

Innovation Solution

A method and interface for displaying virtual avatars on electronic devices that respond to facial feature movements, allowing efficient and intuitive control of visual effects through simplified user interactions, reducing cognitive burden and conserving power.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If complex user interface techniques are used for displaying visual effects, then control precision is improved, but device complexity and ease of operation deteriorate

Engineering Contradiction:

Improvecontrol precisionVSAvoidinterface complexity

Core Design Contradiction:

Measurement precisionVSDevice complexity

Solution Approach 1:

The system automatically detects facial features and movements without requiring user initiation or configuration. The avatar animation system self-activates by monitoring facial landmarks and movements, eliminating the need for complex user interface interactions while maintaining precise control through automated feature detection and tracking

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The patent replaces manual mechanical interaction (buttons, switches, complex UI operations) with an automated optical detection system. Cameras and image processing algorithms substitute for physical user inputs, detecting facial movements and translating them directly into avatar animations without requiring users to navigate complex interfaces

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Measurement precision

If complex user interface techniques are used for displaying visual effects, then control precision is improved, but ease of operation deteriorates

Engineering Contradiction:

Improvecontrol precisionVSAvoidease of operation

Core Design Contradiction:

Measurement precisionVSEase of operation

Solution Approach 1:

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The facial detection system serves multiple functions simultaneously: it detects facial landmarks, tracks movements, determines animation parameters, and controls avatar behavior. This multi-functionality consolidates what would otherwise require multiple separate controls into a single unified system that is both precise and easy to operate

Inventive Principle:

Principle #6Universality (Multi-functionality)

3Reliability

If existing visual effects techniques are used, then visual effect capability is maintained, but use of energy and loss of time worsen

Engineering Contradiction:

Improvevisual effect capabilityVSAvoiddevice energy

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

Instead of continuous processing, the system uses periodic frame-based detection and processing. The camera captures frames at standard rates, processes facial features periodically, and updates the avatar accordingly. This periodic approach maintains visual effect quality while reducing energy consumption compared to continuous real-time processing

Inventive Principle:

Principle #19Periodic action

Solution Approach 2:

The system performs preliminary detection of facial landmarks and movements before generating animation commands. By pre-processing facial feature data and identifying movement patterns in advance, the system reduces the computational burden during the actual animation generation phase, optimizing energy efficiency while maintaining visual effect reliability

Inventive Principle:

Principle #10Preliminary action

4Reliability

If existing visual effects techniques are used, then visual effect capability is maintained, but loss of time worsens

Engineering Contradiction:

Improvevisual effect capabilityVSAvoiduser time

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system uses optimized processing pipelines that skip unnecessary intermediate steps. Facial movements are detected and translated directly into avatar animations through efficient algorithms that bypass complex intermediate processing stages, reducing the time required to generate visual effects while maintaining quality

Inventive Principle:

Principle #21Skipping (Rushing through)

Data Source

PatentUS12482161B2Virtual avatar animation based on facial feature movement

Publication Date: 2025.11.25 APPLE INC

AI summary

The present disclosure generally relates to displaying visual effects such as virtual avatars. An electronic device having a camera and a display apparatus displays a virtual avatar that changes appearance in response to changes in a face in a field of view of the camera. In response to detecting changes in one or more physical features of the face in the field of view of the camera, the electronic device modifies one or more features of the virtual avatar.