Vector Character Deformation for Real-Time Webcam Motion Animation
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Solution Overview
Problem
Existing character animation techniques are complex, laborious, and often require specialized hardware and training, leading to unrealistic and life-like animations, especially when attempting to capture full body motion.
Innovation Solution
A method and system for motion-controlled animation using vector-based graphics, involving a rigging skeleton and machine-learned models to process image frames, update rigging vertices, and perform skinning algorithms to deform the vector-based surface illustration in real-time, enabling realistic character motion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional motion capture with physical markers and multiple cameras is used, then motion capture accuracy is improved, but device complexity and cost increase significantly
Solution Approach 1:
The patent replaces complex mechanical motion capture systems (cameras, markers, rigging hardware) with a computational approach using machine learning models that process standard web camera images to directly extract pose and deformation data, eliminating the need for specialized hardware
Solution Approach 2:
The patent creates a virtual copy of the character model that can be deformed and animated through computational algorithms rather than physical markers, allowing the same visual result without the complex physical setup
2Manufacturing precision
If manual character rigging and animation is performed, then animation quality and control are improved, but time consumption and labor increase significantly
Solution Approach 1:
The system automatically performs the animation process by feeding reference images through machine learning models that self-determine pose, deformation, and motion parameters without requiring manual intervention for each frame, while maintaining high animation quality
Solution Approach 2:
The patent pre-processes character models with virtual rigging and deformation algorithms before animation, so that when reference images are provided, the system can immediately generate animated frames without time-consuming manual setup
3Productivity
If fixed character illustrations are rotated without geometry deformation, then animation simplicity is improved, but realism and life-likeness deteriorate
Solution Approach 1:
The patent transforms static character illustrations into dynamic representations by calculating deformation parameters that adjust the character's geometry in real-time based on reference images, allowing the character to bend, stretch, and move naturally rather than simply rotating
Solution Approach 2:
The system changes the geometric parameters of the character model (vertex positions, mesh deformation) based on calculated pose and motion data from reference images, transforming the rigid illustration into a flexible, realistic animation
4Adaptability or versatility
If dedicated computer hardware such as depth cameras is used, then motion capture capability is improved, but accessibility and cost decrease
Solution Approach 1:
The patent replaces expensive, specialized motion capture hardware with inexpensive standard web cameras that can be easily accessed by anyone, making the technology widely available without requiring high-end equipment
Data Source
AI summary
Systems and methods can enable the control the motion of an animated character based on imagery (e.g., captured by an image capture device such as a web camera or “webcam”) which shows a person in motion. Specifically, the animated character can be automatically rendered to have the same motion as the entity shown in the imagery (e.g., in real time). According to one aspect of the present disclosure, the animated character can be rendered by iteratively transforming (e.g., including deforming the actual geometry of) a vector-based surface illustration. Specifically, the systems and methods present disclosure can leverage the scalable and transformable nature of a vector-based surface illustration to provide more realistic motion-controlled animation, in which the underlying geometry of the animated character is able to be adjusted to imitate human motion more realistically (e.g., as opposed to basic rotations of fixed character geometry).