Real-time AI Character Animation via Multimodal Context

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Solution Overview

Problem

Conventional virtual character models are inflexible and limited in adaptability, unable to use multimodal inputs like text, audio, and environmental changes for dynamic animation, restricting their interaction and engagement in various applications.

Innovation Solution

A system and method for providing real-time animation of AI characters using a processor to determine context and select gestures based on multimodal inputs, allowing AI characters to perform facial and body gestures in a virtual environment, integrating with large language models for optimized responses.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If conventional virtual character models use rigid rules and predefined logic, then the character behavior is predictable and controllable, but the adaptability to dynamic user emotions, actions, or environmental changes is limited

Engineering Contradiction:

Improveadaptability to dynamic user emotions, actions, or environmental changesVSAvoidcomplexity of AI character model with multimodal inputs and real-time animation generation

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The system transitions from static, predefined character behavior to dynamic, real-time adaptation by continuously processing multimodal inputs (text, audio, environmental data) and generating corresponding animations. The character model adapts its gestures and expressions dynamically based on the current context, user emotions, and environmental changes, rather than following rigid predetermined scripts.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The system changes multiple parameters simultaneously including text inputs, audio signals, environmental conditions, gesture selections, and animation parameters. By monitoring and responding to changes in these parameters in real-time, the character model achieves high adaptability to dynamic situations while maintaining coherent behavior through integrated parameter management.

Inventive Principle:

Principle #35Parameter changes

2Adaptability or versatility

If conventional systems use motion capture suits to generate animations, then the animation generation is physically accurate, but the process is cumbersome and restricts animation to only physically captured movements

Engineering Contradiction:

Improverange of animations beyond physical captureVSAvoidease of animation generation process

Core Design Contradiction:

Adaptability or versatilityVSEase of operation

Solution Approach 1:

The system replaces the mechanical motion capture suit with an AI-based character model that processes multimodal inputs (text, audio, environmental data) to generate animations. This substitution eliminates the need for physical capture equipment and allows the character to perform gestures and expressions that go beyond what can be physically captured, while maintaining natural and coherent animation through intelligent processing of input data.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

Instead of capturing physical movements and copying them to the virtual character, the system generates animations by synthesizing appropriate gestures and expressions based on multimodal inputs. The AI character model creates new animation sequences that reflect the character's emotional state and contextual understanding, rather than merely copying pre-captured human movements.

Inventive Principle:

Principle #26Copying

3Adaptability or versatility

If conventional virtual character models are designed for specific applications, then the character behavior is optimized for that application, but the interoperability with other applications and environments is limited

Engineering Contradiction:

Improveinteroperability with different applications and environmentsVSAvoidprecision of character behavior for specific application

Core Design Contradiction:

Adaptability or versatilityVSManufacturing precision

Solution Approach 1:

The AI character model is designed with universal functionality by accepting multiple types of inputs (text, audio, environmental data) and generating appropriate animations through intelligent processing. This multi-functional design allows the same character model to operate effectively across different applications and environments without requiring application-specific customization, while maintaining precise and natural character behavior through adaptive response generation.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS20240221266A1Real-time animation of artificial intelligence characters

Publication Date: 2024.07.04 THEAI INC

AI summary

Systems and methods for providing real-time animation of artificial intelligence (AI) characters are provided. An example method includes determining a context of an interaction between an AI character and a user, where the AI character is generated by an AI character model for interacting with users in a virtual environment; receiving a plurality of gestures associated with the AI character model; selecting, based on the context, a gesture from the plurality of gestures; and causing the AI character model to animate the AI character to perform the selected gesture.