Dimensionality Reduction and Generation of Human Motion
Keywords:
dimensionality reduction, Gaussian process, kernel function, motion generationAbstract
To reuse existing motion data and generate new motion, a method of human motion nonlinear dimensionality reduction and generation, based on fast adaptive scaled Gaussian process latent variable models, is proposed. Through statistical learning on motion data, the motion data are mapped from high-dimensional observation space to low-dimensional latent space to implement nonlinear dimensionality reduction, and probability distributing of posture space which measures the nature of posture is obtained. The posture which meets constraints and has maximal probability can be computed as the solution of inverse kinematics. This method can avoid cockamamie computation and posture distortion existing in traditional inverse kinematics.
The experiments show that our method has higher convergence velocity and precision and extends editing range of motion by adapting motion editing direction.
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