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Paper TuD02.3

Kang, Hyuk (Seoul Nat'l Univ.), Park, Frank (Seoul National University)

Humanoid Motion Optimization Via Nonlinear Dimension Reduction

Scheduled for presentation during the Regular Session "Humanoid Motion Planning and Control" (TuD02), Tuesday, May 15, 2012, 17:00−17:15, Meeting Room 2 (Chief Red Wing)

2012 IEEE International Conference on Robotics and Automation, May 14-18, 2012, RiverCentre, Saint Paul, Minnesota, USA

This information is tentative and subject to change. Compiled on February 23, 2018

Keywords Human Performance Augmentation, Humanoid Robots, Motion and Path Planning

Abstract

This paper examines the extent to which nonlinear dimension reduction techniques from machine learning can be exploited to determine dynamically optimal motions for high degree-of-freedom systems. Using the Gaussian Process Latent Variable Model (GPLVM) to learn the low-dimensional embedding, and a density function that provides a nonlinear mapping from the low-dimensional latent space to the full-dimensional pose space, we determine optimal motions by optimizing the latent space, and mapping the optimal trajectory in the latent space to the pose space. The notion of variance tubes are developed to ensure that kinematic constraints and other are appropriately satisfied without sacrificing naturalness or richness of the motions. Case studies of a 62-dof humanoid performing two sports motions---a golf swing and throwing a baseball---demonstrate that our method can be a highly effective, computationally efficient method for generating dynamically optimal motions.

 

 

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